Polaris Trailblazer 250 Carburetor Adjustment - Polaris Trail Blazer Trailblazer 250 2.

The Babbitt's OEM Parts app puts the power to find and order OEM parts at your fingertips: simple, fast, and convenient! No more wasting time searching the web. Evening guys, I need to rebuild the carb on the 2001 325cc Polaris Trail Boss. Page 82 MAINTENANCE AND LUBRICATION Adjustments Carburetor IMPORTANT: Your …. DOWNLOAD Polaris Sportsman Repair Manual 400 450 500 550. me/brego692000 Polaris Trail Blazer 250 Oil injection Block off kit installation. 36 Engine displacement (cubic centimeters/cubic inches) 244 …. Shop our large selection of 2003 Polaris TRAIL BLAZER 250 (A03BA25CA/CB) OEM Parts, …. 2002 Polaris TRAIL BLAZER (A02BA25(CA)(CD))/TRAIL BLAZER FREEDOM. Carburetor Repair Kit for Polaris Worker 500 4x4 2001 Carb Kit by Race-Driven. Shop online for OEM Carburetor parts that fit your 2003 Polaris TRAIL BLAZER 400 …. Carburetor Intake Manifold Boot 3085013 for Polaris ATV 250 300 trail boss blazer 250. For Trail Blazer 250 1990-2006. To adjust it, start by turning the screw in 1/8 turn increments. this bike will not idle no matter how i adjust the carb and cable brand new oem airbox and filter carb clean new spark plug theres delayed throttle responce and sometimes bogs down when you let off the gas for a second and gas it again like its getting flooded what does it sound like is wrong ?? fist of all. MiniBike-hero Discussion starter. However I have heard so much about the Polaris added to the fact they are American made I knew I had to buy a couple. com/oemparts/a/pol/5034f961f870022b94ea4d3d/carburetorCHECK …. 28, I do have good spark, but no start even with starter fluid. See the full playlist for more about this project. I also needed the throttle/choke cables. Here are the basic steps involved: 1. Many modern vehicles have eliminated carburetors in favor of direct fuel injection controlled by a computer. Step by Step!Today I'll be discussing carburetor adjustments, and showing you how to adjust a carburetor on a running engine. Shop online for OEM Carburetor parts that fit your 1999 Polaris TRAIL BLAZER 250 …. Carburetor adjustments is when the idle mixture screw, pilot screw are rotated clockwise until the proper fuel-air ratio is achieved and the vehicle runs smo. 2006 Honda CR85RB - Too much to list. Here's the problem, When I start it, I have to maintain a throttle open to keep it running. In this video we are disassembling, cleaning and re-assembling a carburetor on a 96 Polaris Scrambler 400 4x4. Polaris Trail Boss 250 4X4 1989-1993. Just pulled and cleaned the carb and got it started. Freedom County ATV FC03401 Carburetor Rebuild Kit for Polaris Trail Blazer, Trail Boss 250, Trail Boss 2x4, 4x4. that is a direct symptom of a lean mixture. Yep, you heard me right, many owners as well. 89 cubic inches) delivered by a 37-mm VM30SS Mikuni round-slide Polaris Trail Boss 250 carburetor (VM34SS Mikuni carb for 2×4 and 4×. Sep 13, 2011 · Welcome! If you follow the the throttle cable out of the throttle control box on the handle bar the cable will get alittle fatter. Type in your search bar: atv polaris (year) model:trailblazer/500cc. home depot wood look porcelain floor tile Includes a new needle, seat, and rubber sealing o-ring. Displaying parts for your 1997 POLARIS Trailblazer 250. WebAdjustment Chart For Polaris Atv Carburetor adjustment-chart-for-polaris-atv-carburetor 3 Downloaded from m. want ads for sale This manual covers 3-, 4- and 6-wheel models with 250-425cc models including: Scrambler 250 (1985-1986) Scrambler 400 (1995) Trail Blazer 250 (1990-1995). ALL-CARB New Carburetor for Polaris Trail Boss 250 4-Stroke 2-Stroke 1987-1990 1992-1999. Cleaned the gas tank and oil tank. Original 1999 Polaris Trail Blazer 250 (A99BA25CA) Parts. May 2, 2010 · 6 posts · Joined 2010. Premix two stroke motorcycle engine oil (not Lawnboy or Weed Eater oil) at 20:1 and adjust the oil to 24:1. Had issues with high reving and fouling spark plugs. Designed with big speed fans in mind, this mind. You can leave the pump if you like and just premix. INSTANT DOWNLOAD Polaris Trail Boss 250, 325 & 330 ATV (all-terrain-vehicle) repair manual. The adjustment is on the carburator,where the choke cable goes into the choke well. Always check the throttle for smooth operation before riding. This article discuss the many causes to why a 2004 or 2005 Polaris Scrambler experiences low idle, high idle or idles erratically. The needle screw is responsible for controlling the fuel mixture at mid-range throttle positions. to/2UQBG6sStarter Kit: https://amzn. Sometimes the throttle cable will get sticky and return slowly on these polaris 2 strokes. 99 Get it as soon as Thursday, Apr 25. Either the float level is to high or the needle and seat are leaking. The United Polaris lounge at IAH is a gorgeous business class lounge with a stunning bar and solid dining options. Alright, So i've got a 1999 Polaris trailblazer with a 250 2 stroke. wear my glasses or contacts when rebuilding a carb. fedex cutoff time near me Picked up an 01 Trailblazer to fix up for the kids. When in alignment, tighten the jam nut without moving the adjuster screw. Pay in 4 interest-free payments of $3. com is an authorized Polaris parts and accessories re-seller. #2 · Mar 20, 2015 (Edited) Clean the needle and seat and check your float level. component testing, part removal, disassembly, cleaning, inspection, reassembly and installation. Engine & Intake 2005 Polaris Trail Blazer 250. If you have and aftermarket air filter and aftermarket exhaust then the main would be somewhere in the 130-135 range. Trail Blazer 250 Modifications Question. Proper carburetor adjustment is critical. The carburetor has starting dripping gas from the carburetor bowl overflow tube. While adjusting freeplay, flip the throttle lever back and forth repeatedly. Jacob Dylan Riley · Original audio. Offroad Vehicle Polaris TRAIL BLAZER 330 Owner's Manual. Trailblazer 250 Charging system HELP!!! Hello, this is my first time posting, and I need a little help. Trailblazer 250 Carburetor Intake Adapter Boot. 16 Part #: 173925 Mfg Part #: 26-1007. You need to adjust the throttle cable so there is 10 thousands of an inch between the throttle block, and lever. Each item has been factory tested and meets or exceeds OEM specifications. Availability: In Stock: Location: Menomonie Usage: New Stock # PS198830 Kunkel Color: GLOSS …. 2001 Trail Boss 325 Carburetor problems. Some folk think that's where you adjust the idle, but its not. There is no adjustment on the push/pull cable. The strong 250cc engine included in the. Polaris Trail Blazer 250 Fuel Parts. This is one of the common Polaris Hawkeye 300 issues. Carburetor Carb Rebuild Kit For Polaris Trail Blazer 250 Trail Boss 250. They all need to be clean and free flowing. com/itm/233491246832Clutch Puller: https://w. i believe with the choke off ,you should have 1/8" free-play. polaris 550lx 550 fan idle adjustment. Here's the entire playlist of what all was done to this Polaris Trail blazer . 4/99 Page 95 Always check throttle cable freeplay after adjusting idle speed and adjust if necessary. not sure if you got your intake boot or not yet but if its cracked it will cause it to backfire alot. I was just givin a Polaris Sport 400. For instance, it is used on doors to. It’s your dealer’s responsibility to make sure the correct main jet is installed. it kinda bogs down from a little past idle and it seems maxs out at 10, almost like it flooding but i have good floats, and the carb is as clean as its gonna get. I am having trouble figuring out the charging system. This manual includes procedures for maintenance operations, component identification and unit repair, along with service specifications for 1996-1998 model Polaris ATVs and Light Utility Vehicles. Replacement Carb Rebuild Kit Fits 1990 - 1995 Polaris Trail Blazer 250 ; Fits 1988 Polaris Trail Boss 250 (Models W887527 & W888127 only) Fits 1989 - 1999 Polaris Trail Boss 250 ; Package included: as the picture show ; please check the pictures carefully before you buy it. First try tapping on the side of the float bowl with the handle of a screwdriver, you may just have a stuck float. It is creates an affordable entry point for kids or adults to get . Shop online for OEM Carburetor parts that fit your 1999 Polaris TRAIL BLAZER 250 (A99BA25CA), search all our. At that point you should be able to keep it running without choke and maybe a little throttle and adjust idle till it idles correctly. in this forum in the entire site. Help & Info; Contact Us Polaris TRAIL BLAZER - A01BA25CA CARBURETOR Diagram. I posted a couple weeks ago about my polaris 250 Trail Boss stalling while going down the road. I also have the Manual for 96-98. Jun 17, 2015 · Help support this channel by making a donation through Paypal. Brand new (chinese) carb off amazon. -Engine flooded -Turn off fuel and drain crankcase. I have a 2003 Polaris trail blazer and I’m looking for a replacement carb I’ve seen someone say that the stock ones they made for that year have been discontinued so I need help on finding a replacement that would still work. While we can't share the full list (it's a. It contains information on ever aspect of repair. This means the measurement at the front of the tire 2 is 0 to 1/8” (0 to 3. The pump will seize if run dry which will damage the drive and may cause pieces of the drive gear to float around the engine. Sort by Oldest first The throttle cable has too little free play - put some slack in the throttle cable and adjust the idle speed on the carburetor. Joined Exactly correct, but it is a replacement nipple that was not offered by Polaris which was pressed in. Polaris Trail Blazer some times the cable can stretch over time and needs to be re-adjusted. Alec tried many tools, some home made, to adjust the Pilot. thats the slide adjustment screw. The leak out the line is from the carb overflowing. Items 1 - 52 of 52 View all Page 1. 2002 Polaris TB 250 - 34mm carb, CPI pipe with Stinger. (you'll need the D-type tool from …. By doing this, you’ll remove some of the spring pull from the thumb lever and obtain up to. The 250 engine was the first Polaris product and it's mainstay in the early years. Jessafa Discussion Starter · Mar 24, 2021. This manual covers 3-, 4- and 6-wheel models with 250-425cc models including: Scrambler 250 (1985-1986) Scrambler 400 (1995) Trail Blazer 250 (1990-1995) Trail Boss 250 (1985-1987, 1994) Trail Boss 250 2X4 (1988-1993). Quantity required per assembly: 1. The threaded end goes thru a plate and has a nut on either side of the plate. In the mid-range circuit, there are 2 basic ways to tune the circuit. My wife's 08 polaris 550lx with a 550 fan seems to idle really high. It needed some brake work new rear hubs and had idling problems. throw pillows overstock 2009 Polaris Sportsman 300 2x4 Service Repair Manual By. 1) found the air box cracked so had open hole straight to carb. Fix - See carb cleaning section below. Place very slight pressure on the throttle lever until all freeplay is removed from throttle cable to carburetor (to the point where the. 00’ Trailblazer 250: NO START/DO HAVE SPARK. Headlight Adjustment (Gen III -Scrambler, Trail Blazer and Sport) Components of ES33PF/EH50PL 200 / 250 Watt Alternator (Exploded View) 584. I am trying to get it running again. This will give you about 30 percent better throttle response than stock when combined with the clutch spring! 1987 250-X Cyclone. My quad will start up fine almost everytime will run and everything but if u dont keep giving it gas while ur parked it dies and it also …. Carb Kit for Polaris Trail Blazer 250 2001 - 2006 Carburetor Repair Kit Rebuild. The only external settings is idle speed and mixture - turn the air screw in until it lightly seats, turn it out 1 1/2 turns - done. Carburetor Repair Kit for Polaris Outlaw 525 S 2009 2010 Carb Kit …. Use the screwdriver to tighten the jet pins until they are in contact with the carburetor’s frame. ATV's are great fun but adjusting the "Pilot Screw" in its terrible location is very frustrating. As the demand for more power became more pressing, Polaris came out with hotter versions of this engine. Nov 29, 2011 · 15 posts · Joined 2011. Help support this channel by making a donation through Paypal. 0 out of 5 stars Fit my Polaris Trailblazer 250. Stock injection ratio is closer to 50:1 and is plenty of oil. Headlight Lamp Replacement - Scrambler. One of the common issues that Trailblazer 250 owners may encounter is a faulty fuel line. The Injection system mixes anywhere from 50:1 to 75:1 depending on throttle position. hi guys im new to all this and may have a carb problem i have just bought a 2000 trailblazer 250 2- stroke sitting off the road for a year i have stripped down the carb and cleaned it all the way through also changed the plug cleaned the air filter set everything back up ,mixture idle etc it now starts and idles perfect but then i drive it its got a lack of …. Front & Rear Storage Rack Extender fits 2014-2020 Polaris Sportsman 450 / 570. For Polaris Trail Blazer Xplorer 250 2000-2002. You are correct in the fact that there is not a choke plate. My neighbor called the cops because I was playing Radar Love too loud they arrested him. body power trio trainer replacement parts if u want, if u have a pic phone, just snap a pic and send it to 903-563-2456. To lessen amount of oil used you have to move threaded end of cable closer to oil pump (2001 600dlx). But to me it definitely seems like either the clutch isn't engaging fully or the belt is slipping. 001-trailblazer-250-wont-start-when-warm. Manufacturer’s suggested retail price (MSRP) subject to change. Polaris atv user manual (122 pages) Page 140 FUEL SYSTEM/CARBURETION FLOAT HEIGHT ADJUSTMENT 1. 2000 Polaris trailblazer 250 Clutch kit suggestions? Had carb issues and would not accelerate without choking it. Loosen the little screw there and it will drain all the fuel out of the carb. Polaris Sportsman 400 Carb Adjustment. 32mm 2-stroke Carburetor For Polaris Xplorer 400 400L Trail Blazer 250 carb (For: Polaris Trail Blazer 250) $36. Any ideas Sounds like starter is bad needs rebuild or its full of mud or water. In this video I want to talk about tuning and rebuilding the carburetor. Free shipping on many items | Browse your favorite brands | affordable prices. little tykes barn Sold by Powermall and ships from Amazon Fulfillment. Clean the idle circuit and ensure it is flowing properly. exact fit Float Bowl Gasket - 0934-6400 Moose. Funny thing is the 87 trail boss 250 and the 01 trailblazer 250 both sat for 13 years and for whatever reason the clutch on the trailblazer froze up. Return any new, unused item within 30 days. While it's true the timing will not be off enough to prevent it from starting or running, it can be adjusted for peak performance. The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle. Took it out for a ride and when I returned it started bogging down about mid throttle? I put in a new plug and gapped it at. Check brake pads, calipers, and brake fluid level. Check for any possible vacuum leaks. The airbox was missing when I got it so it’s just sucking air. First it is an overflow, so that any time the float bowl gets too much fuel, it runs out onto the ground instead of filling the crankcase with fuel. First thing would be adjust the throttle (about 6-12" down from the top of throttle cable is a rubber boot. Good jets can vary as much as 5% cheap jets can be closer to 10% variance. United's Polaris product started as a marketing ploy with little substance, but the carrier is expanding Polaris to more routes and aircraft. the line was melted when I got it and have no idea. espn packers depth chart Once the carburetor is reinstalled, start the engine and observe its performance. com/how-to-size-your-pilot-jet-pilot-screw-explained/Click link above for blog post with more info. I believe I have a bad float/miss adjusted float level or most likely a bad needle and or seat. com - Repair Manual Specialists Since 1997 - Call 1-800-426-4214. Buy RYTIME Carburetor Compatible with Polaris Trail Blazer 250 1990-1998 2000-2006 Xplorer 250 2000-2002 Xplorer 300 400 400L 1996-1998 Sport Scrambler Big Boss 400 400L 32mm 2-stroke: Carburetors - Amazon. Looking at the winding 2-2 is 2nd from hardest. If there is an issue with the carburetor, your ATV engine may be idling at a higher than normal rate. Make sure you click the THANKS button under the video screen if this video helped you or "saved your life. The problem may be in the transmission, in the shift box or both. The only reason why I could not get it started was because either I have a bad kill switch or. Buy All Balls Racing 26-1007 Carburetor Kit, Complete Compatible with/Replacement For Polaris Big Boss 250 4x6 1989-1992, …. The oil goes into the crank case and mixes with the fuel inside. Also, I simply sprayed some Starter Fluid in the cylinder and it fired right up - an. the float has a pin in it holding it in, remove the pin and then the float. c) Stand the quad up on its tail (use a small. Check out my 4 stroking polaris trail boss 250 2 stroke. If you receive any parts that appear to be damaged, blemished, or un-fit for your machine, please call us toll-free at 800-638-5822 or send us an email at returns@wheelerpowersports. In This video we are removing and explaining the clutch/oil pump assembly on the 1987 Suzuki Quadrunner 250 4x4 motor. Probably best to replace your carb then. This video will quickly explain how to adjust the chain and reach the rear grease insert on your Polaris 250 Trail Boss. If it's truly flooding, you'll have gas leaking out someplace. Shop Owner and Mechanic with over 50 years experience. best custom leather holster makers If yes it sounds like the float in your carb is stuck open. Hi, I am working on a 2003 Trailblazer 250filled the gas tank and gas started running out right away (I'm assuming the Petcock Valve) and under the tank out the bottom through a clear orange tube. It ended up being a faulty crank seal installed by a previous mechanic. Before adjusting the oil Cable Adjuster pump, check engine idle RPM and carburetor ad- justments which are found in the owner’s manual sup- plement. I have got in all built now but the only thing I am working on is carb issues. Polaris Trail Boss/Blazer 250 complete Carburetor Clean/RebuildGood used rebuilt Carburetors: https://www. New replacement needle and seat for your Polaris ATV carburetor. FITS THE FOLLOWING MODEL(S): 1990-'06 TRAIL BLAZER 250 1993 250 1994-'95 300 …. Carburetor carb for polaris trail boss 250 2x4 4x4 4-stroke 2-strokePolaris 250 diagram boss trail carburetor carb vent 400 lines trailblazer hose 1996 scrambler 2001 trailboss idle need atv 1990 Polaris boss trail carburetor 2x4Polaris carburetor trail …. Now this is a remanufactured carb I got online so I don't believe it was set. This results in piston burning, bearing failure or complete engine failure. I had to pull start it because it seemed the battery was bad. Link below for the tools required. Reinstall the choke plunger and with choke off (lever down), adjust the cable with a minimum of 1/16" of free-play, then adjust fuel mixture screw 1 to 1 1/2 turns out. I got the quad a few years back and it has always smoked like a mosquito fogging truck :yessir: It has good power, starts easy and runs well. The factory carb measures 37mm at the engine side and 42. It's typically located on the right side of the engine, near the air filter. i have a huge air leak somewhere, and i think its cuz i dont …. "cab vendor agreement format" cleaned the gas tank and have fuel to carburetor, I have good compression going off of the “thumb” tester, cleaned the carb thoroughly, new spark plug gapped to. The keys to proper operation are first and foremost, clean passages in the carb behind the plunger (which are difficult to achieve without a good sonic cleaner to soak your carb in), and making sure the plunger is fully seated when the “choke” is off. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship Designed with supreme quality and long-term dependability in mind Made to offer outstanding. Jump to Latest Follow 10 3130012 SPRING,AIR ADJUST 1 11 3130011 SCREW,AIR 1 12 3130010 SPRING,THROTTLE ADJ. IMPORTANT: Keep this supplement with your owner's manual at all times. We expand our inventory daily to give you the latest and greatest in Powersports products. How to Adjust a Polaris Carburetor It Still Runs. hard to say when it was done last, and they can and do get dirty fast. Explaining every detail along the way. It seems polaris does run leaner, and my guess is a 45:1 or 50:1 but im not for sure. The float can easily be tested with the carb still in place see attached photos. Carburetor Float Height Tools & Accessories: https://www. Cable adjustment and idle are critical for the etc to work. have to shut down quick to keep engine from throwing a rod or something. Hose #33 is 1/8 ID vent line - it is purchases in bulk (600 centimeters - roughly 236 inches) and just cut to length - #31 is a check valve/filter (lets liquid out and keeps dirt and water from getting in) - #30 is 1/4 ID hose and #32 is a reducing TEE. and there seem to be some 1/8" fuel lines disconnected on the carb. United's LAX Polaris Lounge begins welcoming flyers this Saturday, January 12. Polaris 195 CCA OEM Battery $99. Tutorial: polaris 250 carb rebuild400l polaris rebuild carburetor Carb adjustment for '04 polaris 700 sportsmanYour polaris trail blazer 250 2-stroke carburetor dribbles drips fuel. Typically you need to change your main jet 2-3 sizes smaller at that elevation for the same temp as 0-3000'. I had one before I moved which had a clutch kit, pipe n I believe jetting and carb work. more then likely your idle jet will be clogged also. Get it back running like new again with this new direct replacement intake boot by Quad Logic. In addition, troubleshooting fuel supply problems before makin. Research 2005 Polaris TRAIL BLAZER 250 - 244cc standard equipment and specifications at J. 1998 trail blazer 250 for 50 bucks will it run? zane1234; Nov 4, 2022; 4 904 Nov 16, 2022. Replacement Carb Rebuild Kit Fits 1990 - 1995 Polaris Trail Blazer 250 ; Fits 1988 Polaris Trail Boss 250 (Models W887527 & …. Carburetor Adjustment Screw Adjust Idle Up OR Down To Keep The Atv Running Easily On 50cc 110cc 125cc 150cc 200cc 250cc 300cc Atv From http://www. Set the idle speed screw for the desired idle speed - done. This will give you access to the carburetor. no not at all,butt a 400 silencer (ANY YEAR I THINK THAT HAS THE SEPERATE ONE)will fit alot of the performance pipes,,,,,,,,,,,,,i hear they are quieter than a aftermarket silencer yet you have the advantage of the tuned expansion chamber. Polaris Trail Blazer 250 ES 1997 For Polaris Trail Blazer 250 ES 1996. also check the choke plunger make sure it opens and closes freely. If the floats are plastic or composite, I set the level with the carb about 45 degrees from inverted - I actually. Jump to Latest Follow We have cleaned the carb at least 4 times. #1 issue was the oilpump itself. Polaris 700 Problems It Still Runs. adjust idle speed by turning screw in to increase n out to decrease rpm. you may need to adjust the fuel enricher i think it has that and not a choke, they work by adding fuel to the mixture when its applied A forum community dedicated to Polaris ATV owners and enthusiasts. Mikuni Geniune VM30mm VM30 VM 30mm 30 mm Round Slide Carb Carburetor VM30-83 | eBay. The Ranger series is made up of 18 UTV models, perfect for farmers, ranchers, hunters, homeowners, and even young riders. If you are no longer using the oil injection I would recommend going to a single cable instead of the dual split cable. From the third pic, it appear that the air gap is about right, but you can adjust it a little by loosening the screws. These two screws are usually marked. denial co16 Now that I have that out of the way. Unfortunately it was when I was younger and not very mechanically inclined. Someone has disconnected the oil mix tank and chunked it. Set the screw in the position where the engine’s idle sounds most even and smooth to balance the fuel mixture. I finally got these brakes working. I have cleaned the air filter, replaced fuel pump, took carb apart except for the two jets that screw in, and soaked parts in carb cleaner for. Ran really rich and the adjustment screws don't help. these things don't usually go bad,just out of adjustment. For schematic location 14 only. Anyone, I am looking to find out what carb would be a replacement for my sons 2006 trailblazer 250. : Get the latest Polaris stock price and detailed information including news, historical charts and realtime prices. How to install a carburetor on a four wheeler polaris 1990 1995 trail boss 250 valve adjustment 1996 polaris 250 trail boss overheating will 2002 polaris trailblazer ignition coil fit 1988 polaris trail boss how do u change the gear oil in a 250 trail boss 87 trail boss 250 wont stay running and stalls removing jets in carburetor polaris trail. '00-older, has the port on the cylinder. The Polaris Trailblazer 250 is a popular choice for ATV enthusiasts, known for its durability and performance. Adjust the idle mixture screw to the correct setting. Shop online for OEM Carburetor /Cb parts that fit your 2005 Polaris TRAIL BLAZER …. If anybody is wondering, moving the needle clip and resetting the mixture screw made a huge difference in cold starting. I explain what to check before you start adjusting the settings and . 1987 Yamaha Banshee 350 twin (sold). Carburetor For Polaris Xplorer 250 2000-2002 Trail Blazer 250 1990-2006. From the EARLY trailboss/ Scrambler manual it says Main Jet 155. I bet the exhaust lobe is worn. a) Drain the gas from the tank. You may have to bump the main jet up a couple sizes as when you mix oil with the gas, the oil displaces the gas and the fuel/air ratio leans out. You have the Slide needle and the airl screw set properly? Should be middle notch on the E clip, 1. THIS VIDEO WILL SHOW HOW TO ADJUST THE CHAIN ON A POLARIS 250, I THINK WILL BE THE SAME FOR MOST POLARIS WITH CHAIN. Understanding the different parts of the carburetor diagram can help in troubleshooting and maintaining the ATV.