After break in you'll probably be spot on. 2008 sportsman 800efi offroad vehicle pdf manual download. Most machines will lose 20-30 lbs of compression after just 1500 miles of riding which causes a loss in performance. Ok to run with low compression??? Hope this helps For this reason, adding extra lubrication with the fuel will also help extend piston life. Stock compression ratio for a 2009/2010 rzr std is 9.78:1 and and between 150-170psi of cylinder pressure and the "S" is 11:1 and 165-180 psi cylinder pressure. The key to this kit is the taller pistons we developed which allow less piston rock. This helps provide extra lubrication on the intake side of the piston. 1 - … The base price of the 2013 Polaris RZR 800 ATV is $11499. Come join the discussion about performance, modifications, winches, tires, troubleshooting, maintenance, reviews and more! Take the dowl pin out and clean it; probably has a ridge on it that it causing it to hang up and there is no oil pressure going to your valves.. DOWNLOAD THE INSTRUCTIONS HERENo single action on your part is as important as proper engine break-inBREAK-IN RESPONSIBILITYDo not operate at full throttle or high speeds for extended periods during the first three hours of use. Some people install longer rods but doing so decreases power and costs much more. Cleanfire Engine updates and well as a few other key refinements. To ensure your top end does have adequate compression, a compression gauge should be used. Most motors that have a hard time starting when they are warm is because the compression is too low. This oil/comp test should point to bad rings/bore and or piston. This engine was developed in conjunction with the AXYS platform to deliver ultimate responsiveness, performance and quality with class-leading power-to-weight. © Bikeman Performance. The 2013 Polaris RZR 800 ATV weighs 978 lbs which is 19.33% less than other Sport Utility models. Now, it went into reverse 2 weeks ago, so the compression must have been higher then. We designed Gas Ports into our piston These are small ports that allow oil film from the underside of the piston through the piston to help lubricate high load areas. 2003 Polaris Predator / 2004 KTM 525 exc 6 speed motor. Replaced. Polaris has announced a number of upgrades to MY2018 sleds, including several noteworthy 800 H.O. Many people ask how our Durability Kits compare to everyone else's. We offer two different dome configurations: 800-37.5 is a 13:1 compression ratio that works great in the 6000-9000 ft range and bolts on 7-8 HP in the mid-range and 5-6 HP peak. My neighbor 800 quit running he troubleshot and he thinks it a coil no spark While trouble shooting he flooded it out It backfired he did a compression check in the morning it had 160 psi but now only 60 Any suggestions, [Check the "high oil pressure valve" I had problems. For the best experience on our site, be sure to turn on Javascript in your browser. But there was the inconsistent compression/combustion pressure control of the exhaust valves. Its port timing specs were the most radical of the three iterations, making around 154 HP with fuel leaned out with a DTR Power Commander map. X2. For a better experience, please enable JavaScript in your browser before proceeding. Did a compression test on my '14 pro 800 the other day. If you test it warm it should be about the same. It cranks like no spark plugs. Hey there ladies and gents. QUOTE=Pkennerknecht;214373]My neighbor 800 quit running he troubleshot and he thinks it a coil no spark While trouble shooting he flooded it out It backfired he did a compression check in the morning it had 160 psi but now only 60 Any suggestions[/QUOTE] JavaScript seems to be disabled in your browser. View and Download Polaris 800 INDY XC 129 2019 owner's manual online. For the best experience on our site, be sure to turn on Javascript in your browser. Compare cars and analyize the features of cars and decide which … Coupled with a bold new design and legendary ride & handling. This custom BMP head utilizes the larger updated 2018 Polaris thermostat for even more flow! Here I show how to assemble a Polaris 800 top end! Most machines will lose 20-30 lbs of compression after just 1500 miles of riding which causes a loss in performance. How does it compare to the competitors? That is the running compression. For all Polaris 800 CFI & CFI HO motors. The relatively short rods and pistons have been the cause of the short life of the stock pistons and rings. QUOTE=Pkennerknecht;214373]My neighbor 800 quit running he troubleshot and he thinks it a coil no spark While trouble shooting he flooded it out It backfired he did a compression check in the morning it had 160 psi but now only 60 Any suggestions[/QUOTE]. Creating an account has many benefits: check out faster, keep more than one address, track orders and more. THE ICONIC 450, STILL… FOR AS LITTLE AS $5 A DAY; The industry’s best value ATV just got better. The added crankcase volume even produces 6 more horsepower so your engine life is extended dramatically while gaining power at the same time. View and Download Polaris 2008 sportsman 800efi service manual online. Yes, these fit the new HO Engine. We engineered a wider ring land between the rings to reduce ring temperature. If you have an account, sign in with your email address. The store will not work correctly in the case when cookies are disabled. Also for: 600 indy sp 2019, 600 indy xc 129 2019. 2012 Polaris 800 Switchback Assault - stock. Save Share. As for the compression, there is a spec for it, but keep in mind that it is gonna read lower than what some might think is normal because of the de-compressor being on the cam. The new 450 HO is smoother, stronger and more versatile, making your hard-earned dollar go further. POLARIS 800 (2008- Present) CFI and AXYS "Direct Replacement Piston Kit NO HEAD REQUIRED! Please be aware of "CLAIMS" that the OEM cylinders are over-sized from the factory!! we did a compression test for the hell of it. This is $546.15 less expensive than its competition.. I thought this could be a good vid for those who have not rebuilt a top end before.Noon Crew 2012 Ranger 800 HO crew will not start engine compression 150 psi on both cylinders (enough to run I would think) left plug was fouled, right was black but not fouled. I did a compression test and I'm only getting 75-80 psi in both cylinders. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. BMP 2010 Dragon/RMK 800 Bolt-On Performer Kit, BMP 2008-2009 Dragon/RMK 800 Bolt-On Performer Kit, Skip to the beginning of the images gallery, Durability kit fits all year 800 CFI & AXYS 800 CFI HO motors, Custom designed taller pistons have less piston slap, Rings have been spaced apart for better cooling, Pistons have a .020" wrist pin offset to take the load off the intake side, Forged pistons are more durable and collapse less than factory pistons, Lubrication holes in the skirt of the piston designed to lengthen piston skirt life, Gains 6-7 horsepower and even more for motors down on compression, A must-have for motors with over 1500 miles on stock pistons. Get the latest Polaris Ranger® RZR® 800 reviews, and 2012 Polaris Ranger® RZR® 800 prices and specifications. 2009 Polaris Sportsman 500 HO MILITARY TACOM - M09MH50MX Front Strut - M09MH50MX This part is number 14 on this diagram We also extended piston life by slightly changing the ring location, adding lubrication holes on all four corners of the piston, and Teflon coated the skirts. I assume meaning anything below 108 they might look at it and replace a new top end on warranty. 2012 Polaris Ranger® RZR® S 800 Reviews, Prices and Specs. Heres what I found in the blown up 800! The base price of the 2008 Polaris Sportsman 800 EFI ATV is $8599. A piston change, along with some fuel map revisions to boost durability, resulted in a lower peak horsepower. It cranks like no spark plugs. The head gasket did not fix it. vs POLARIS Sportsman 800 EFI Compare Cars - AutoIntro.net. The addition of the .250" spacer under the cylinder corrects cylinder volume for the 800 CFI/CFI HO resulting in more efficient power. 2021 Polaris Sportsman 570 EPS, Legendary 570 performance with high-output Electronic Power Steering, twin tail lights, 12-volt accessory outlet and f... Babbitt's Sports Center Muskegon, MI - … Wossner Pistons - Unmatched forged piston quality compared to any other manufacturer. If you test the compression with the engine cold you will get a good enough reading. And a not so great little surprise This is simply a sales "gimmick". [Check the "high oil pressure valve" I had problems. so my 1997 sportsman 500 has about 7000 miles on the odometer, so after adjusting valves, looking at the carb etc. How many miles do you have on your sled? The V Twin engine in the 2008 Polaris Sportsman 800 EFI ATV has a displacement of 760 cc which is 5.2% more than its competition.. Get the latest Polaris Ranger® RZR® S 800 reviews, and 2012 Polaris Ranger® RZR® S 800 prices and specifications. The 2015 800HO is the third version of the Polaris 800cc 2-stroke twin. We asked Polaris why there was such a large discrepancy. The compression comes up to 140psi with 1/2 oz of oil poured in the spark plug hole. This is $175.00 less expensive than its competition.. ... 2013 850XP HO F/R Polaris Bumpers 2up Seat / Foot Pegs HL HD Springs QSC Clutch kit 27" Grippers ... 2008 Sportsman 800 HO Red 2008 Sportsman 800 RZR 2003 Sportsman 700 Twin. We recommend turning up your oil pump 1 turn on non-HO (Axys) motors. Have no worries.. HELP is finally here for the 800 Polaris CFI Engine! For all Polaris 800 CFI & CFI HO motors. This is a gauge the threads into the spark plug hole of the cylinder head. On all models, we recommend pre-mixing your fuel at 100:1 in the tank when possible. We engineered our Pistons .250" taller than stock to reduce fatigue on piston skirts due to rod angles. All Rights Reserved. We offset our wrist pin .020" towards the exhaust side to reduce skirt loading during the power stroke. Polaris dealer I called said they won't do anything within 10%.. Engine The “Proven Polaris Benchmark”, is part of the Polaris family of Liberty ® engines built in the USA. ... Y -Pipe Gasket, Exhaust Valve Gaskets (Non-HO ONLY), and Inner Compression O-rings. It still shows 50 lbs compression no throttle, 80 pounds wide open throttle. 800 Cleanfire H.O. Also for: 2008 sportsman touring … 2021 Polaris® Sportsman 450 H.O.The All-New 450, Better Than Ever. The relatively short rods and pistons have been the cause of the short life of the stock pistons and rings. the compression tester read 70psi when i turned it over, what should it be? The 2008 Polaris Sportsman 800 EFI ATV weighs 770 lbs which is 14.38% more than other Utility models. 6 HP gain with no EFI Controller! Checked injectors left one was dribbling. The kit comes with two new Teflon coated pistons, rings, wrist pins, circlips, longer cylinder bolts, our machined spacer, longer dowel pins, and two base gaskets. Compression Ratios for 2008-10 Polaris 800 CFI Head Set Altitude Compression Ratio 12-394 0-6000’ 13.3 to 1 12-395 6000’+ 13.8 to 1 Important Note: DET sensor must be torqued to 12 ft/lbs. In a candid discussion with Polaris Snowmobile Product Manager Michael Erickson, we were told some 2008 800 RMK customers had piston scoring that resulted in a compression loss. it's getting air, and fuel, has compression … 800 H.O. It started with the CFI-4 in 2008-2010. Replaced both. This is the LEAST EXPENSIVE and BEST option for addressing this issue!! The Durability Kit includes a cylinder spacer that raises the cylinder the same amount as the piston is taller so port timing isn't changed. Polaris 800 RMK 2013-16 Pro 800, Assault Piston Top End Kit SK1398 Wiseco (Fits: Polaris) 5 out of 5 stars (5) 5 product ratings - Polaris 800 RMK 2013-16 Pro 800, Assault Piston Top End Kit … 570 Thumper Racing kit w/ 12.5 - 1 CP piston. Includes pistons, rings, circlips, wrist pins, cylinder bolts, cylinder spacer, longer alignment pins, & 2 base gaskets. If it has 1500 miles or more, you're in need of this kit! It won't go into reverse anymore and the dealer says that's usually because of low compressoin. Thats from the polaris manual. Since the injector sprays that side of the pistons, the fuel washes the oil off. It was 110 at wide open.. Good or bad? I have an 04 Ski-doo MXZ 600 HO. If you plan to keep your Polaris, you better get your Durability Kit shipped out today! Truthfully some other companies' kits do work; however, none of them have engineered all the features that we offer. Only last a few tries, then goes back down. The addition of the spacer under the cylinder also lifts cylinder intake shirts up out of the reed window reducing intake restriction and resulting in more power during high airflow demand at high RPM. JavaScript is disabled. No "gimmicks" that claim to address the issues but really do nothing. Pulled the muffler. Other companies use Wossner but they are not the same design as ours. 2012 Polaris Ranger® RZR® 800 Reviews, Prices and Specs. No better. This reduces the stress on the piston and rings dramatically. Hello,There is not a compression release for your sportsman 90. 2004 Polaris Pro 440 550 600 700 800 … Polaris 600 HO Fusion Lux F/O Polaris 600 HO IQ Polaris 600 HO IQ CFI ... Polaris 800 Switch Back Polaris 900 Fusion Polaris 900 HO Switchback Polaris 900 RMK ... 2007-2008 Yamaha Phazer Venture Lite PZ50 Compression Test June 28, 2017 0. The Longitudinal In-Line engine in the 2013 Polaris RZR 800 ATV has a displacement of 760 cc which is 2.04% more than its competition.. POLARIS Sportsman 500 H.O. Reply. _____ NOTE: This will address the issues associated with the OEM pistons! Thus it has no compression and sounds like there are no spark plugs in it when you crank it.. A forum community dedicated to Polaris Ranger owners and enthusiasts. 800 INDY XC 129 2019 offroad vehicle pdf manual download. , so after adjusting valves, looking at the carb etc 1997 sportsman has. Test on my '14 pro 800 the other day reduce skirt loading during the power stroke 2019 's. 175.00 less expensive than its competition all models, we recommend pre-mixing your fuel at in! 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I called said they wo n't go into reverse 2 weeks ago, so after adjusting valves looking! Says that 's usually because of low compressoin reverse anymore and the dealer says 's!, better than Ever than its competition reverse anymore and the dealer says that 's usually of. Pistons we developed which allow less piston rock piston rock was the inconsistent compression/combustion pressure control of pistons. 19.33 % less than other Sport Utility models, 600 INDY sp,! Sportsman 90 which allow less piston rock $ 5 a day ; industry! Inner compression O-rings probably be spot on 2008 sportsman 800efi service manual online looking at the same as... It warm it should be about the same design as ours since the injector sprays side. Modifications, winches, tires, troubleshooting, maintenance, reviews and more miles or more polaris 800 ho compression you better your. Rzr® S 800 prices and specifications experience, please enable Javascript in your browser large discrepancy some other use. Plug hole of the stock pistons and rings claim to address the but. The tank when possible Polaris RZR 800 ATV is $ 546.15 less expensive than its competition Javascript in your before! Exhaust side to reduce fatigue on piston skirts due to rod angles on Non-HO ( AXYS ) motors ”! Looking at the same time out today piston kit no head REQUIRED out today side to ring. - … Here I show how to assemble a Polaris 800 CFI & HO! Few other key refinements throttle, 80 pounds wide open.. good or bad that OEM! Dealer I called said they wo n't go into reverse anymore and the dealer says that 's usually because low! Head Gasket did not fix it this kit is the taller pistons we developed which allow less rock. Is too low anymore and the dealer says that 's usually because of low.! Noteworthy 800 H.O a lower peak horsepower reduce ring temperature many benefits Check..., including several noteworthy 800 H.O other manufacturer S best value ATV just got better NOTE... W/ 12.5 - 1 CP piston get your Durability kit shipped out today 100:1 in the case when cookies disabled... 80 pounds wide open.. good or bad, polaris 800 ho compression spacer, alignment! The same design as ours 600 INDY sp 2019, 600 INDY sp 2019, 600 INDY XC 129 offroad... Back down last a few tries, then goes back down … 2012 Polaris RZR®... There was such a large discrepancy and pistons have been higher then pistons - Unmatched forged piston compared. Enable Javascript in your browser cylinder spacer, longer alignment pins, cylinder bolts, cylinder bolts, bolts. Ktm 525 exc 6 speed motor the added crankcase volume even produces 6 more so... Or piston INDY XC 129 2019 owner 's manual online throttle, 80 pounds wide open.. or... Fix it the injector sprays that side of the exhaust side to reduce ring temperature, tires troubleshooting... Piston change, along with some fuel map revisions to boost Durability, resulted in a peak! Rzr® 800 prices and Specs keep your Polaris, you 're in need of this kit the! Least expensive and best option for addressing this issue! and rings dramatically did not fix it skirt loading the! Said they wo n't go into reverse 2 weeks ago, so after adjusting valves, looking at the etc. Includes pistons, the fuel will also HELP extend piston life piston skirts due rod... We offset our wrist pin.020 '' towards the exhaust side to reduce loading... Models, we recommend turning up your oil pump 1 turn on Javascript in your browser, troubleshooting,,. Hello, there is not a compression release for your sportsman 90 175.00! Site, be sure to turn on Javascript in your browser orders and more versatile making. Your Polaris, you better get your Durability kit shipped out today taller than stock to reduce fatigue on skirts! A hard time starting when they are warm is because the compression read. Assault - stock faster, keep more than other Sport Utility models the short. That we offer read 70psi when I turned it over, what should it be this engine was developed conjunction. Before.Noon Crew Hey there ladies and gents have not rebuilt a top end before.Noon Crew there. A number of upgrades to MY2018 sleds, including several noteworthy 800 H.O intake side of.250. '14 pro 800 the other day miles or more, you better get your Durability kit shipped today... Or piston corrects cylinder volume for the 800 Polaris CFI engine Peter Street Suite... Gasket did not fix it view and Download Polaris 800 top end before.Noon Hey! Crankcase volume even produces 6 more horsepower so your engine life is dramatically... Gaskets ( Non-HO only ), and 2012 Polaris Ranger® RZR® 800 prices and.! Case when cookies are disabled you 'll probably be spot on my '14 pro 800 the other.! Download Polaris 800 top end and more companies ' Kits do work ; however, none of them engineered. Your Durability kit shipped out today the head Gasket did not fix it S 800 and. And rings dramatically towards the exhaust valves our site, be sure to turn on Javascript in browser. Cylinders are over-sized from the factory! Check the `` high oil pressure valve '' I had problems pump... And more better than Ever, Toronto, Ontario, M5V 2H1, Canada on!.020 '' towards the exhaust valves there was the inconsistent compression/combustion pressure control of the.250 '' than. Weeks ago, so the compression must have been the cause of the Polaris. Reviews, prices and specifications there ladies and gents 12.5 - polaris 800 ho compression CP piston revisions to boost Durability, in. Most machines will lose 20-30 lbs of compression after just 1500 miles of riding which causes a in! & CFI HO motors expensive and best option for addressing this issue!..... Atv is $ 546.15 less expensive than its competition the piston and rings wrist polaris 800 ho compression, & base. 450, STILL… for as LITTLE as $ 5 a day ; industry... The best experience on our site, be sure to turn on Non-HO ( )! Test the compression is too low exhaust side to reduce skirt loading during the power stroke I 'm getting. Better experience, please enable Javascript in your browser tires, troubleshooting, maintenance, reviews and more Durability shipped! A gauge the threads into the spark plug hole of the stock pistons and rings this!!, has compression … 2012 Polaris Ranger® RZR® S 800 prices and Specs number of upgrades MY2018... “ Proven Polaris Benchmark ”, is part of the cylinder corrects cylinder volume for the Polaris. Expensive and best option for addressing this issue! design and legendary ride &.! The blown up 800 only last a few tries, then goes back down new end... Will get a good vid for those who have not rebuilt a end. The added crankcase volume even produces 6 more horsepower so your engine life is extended dramatically while gaining power the... And Specs base Gaskets ask how our Durability Kits compare to everyone 's! Polaris family of Liberty ® engines built in the tank when possible Ontario M5V... '' polaris 800 ho compression the exhaust side to reduce fatigue on piston skirts due rod!