the rktek pistons are custom cut from sea doo pro x pistons and must have his cylinder head to work. Have no worries.. HELP is finally here for the 800 Polaris CFI Engine! If you're on a budget and want to try some slightly used Pistons go with RK Tek. Rk tek drop in kit - posted in Sled Parts For Sale or Trade: New unused rk tek drop in kit for 800 04 through 07. We can ship to most anywhere in the world. Please see out Terms and Conditions for our refund policy. NOTE: ALL pistons come with Rings, Wrist Pin, and Circlips! Voir. Friend of mine having fun with a Polaris RMK 800 PRO 2013 mod with RK TEK and SLP Stage2 kit. Can't … So, doing a compression check will not yield any relevant information regarding the health of your PISTON SKIRTS. Wishing you all a very Merry Christmas, from our family to yours! Mouse over to Zoom-Click to enlarge: X. Dec 11, 2008 596 50 28 Livingston MT . NOTE: RKT Top end gasket kit is comprised of the Base Gasket, Y -Pipe Gasket, Exhaust Valve Gaskets (Non-HO ONLY), and Inner Compression O-rings. RK Tek also has their own piston line to assure the best performance and longevity with ALL of the engines . It is a TRUE "Pull the Rope and Go" Bolt On Performance Kit!! You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. They will NOT fail unless they are subjected to a low fuel or high heat condition! They require ZERO added "treatment"! $450 440 724 2765 RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). FUEL (NOT COOLANT) is the #1 cooling agent for ANY Engine (important to remember) and this engine has none! $288.00. I just don't have enough miles on mine to provide an accurate reference on their durability. Link to his channel: http://www.youtube.com/user/vipe84 Ski-Doo: ZX Sleds. It is a widely held belief that the OEM pistons are too small from the factory and this is where the issues lie. We also have found that the ,annoying, low RPM vibration (handle-bar "death shake") is gone with the install of these pistons. I'm not sure as I'm a newbie. Our inspections show that the stock piston has several "short-comings" that can lead to failure. If you have any questionscall us anytime we're here to help. _______________________________________________________________________________________. The piston we use is VERY CUSTOM! RK Tek is the leader in 2 stroke engine development. Yes, that's right, RK Tek draws results from "real world" testing, 1245 Industrial Park Rd.Preston, ID  83263 Phone: 208-852-3221, Copyright © 2017 RK Tek - All Rights ReservedCreated by Mountain West Web Design. I wouldn't run wiseco's for nothing but racing and nos because they are forged and expand at a different rate than cast pistons, easier to cold seize if not warmed up enough, also finicky … IT IS NOT due to a rod ratio error! RK tek pistons? Shop with confidence. We WANT to be sure that you have the correct parts from us and enjoy speaking with each and every one of you.. With the phone call, we can get the necessary information and BOTH can be confident that you will be receiving the CORRECT parts for your engine and your application.. Polaris Patriot 850 Dual Ring Direct Replacement Pistons. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. It was not much of a surprise to find that Ski Doo had not addressed many of the problem areas that also … R. raleigh111 Free Member. Thanks for your support! LOOKING fine and MEASURING fine are 2 VERY different things.. You MUST MEASURE the piston in order to determine if the piston is "GOOD". RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. End gases will NOT be trapped in the squish band where they can't contribute to the power process. There are no "set-up" concerns, no reliability concerns. Troubleshooting. Remember this, VERY IMPORTANT, a compression check will tell you little to nothing about the health of your skirts. We design the piston that should have been installed from the factory. While there are some "What were they thinking" aspects of this engine.. in OUR opinion the rod ratio is not one of them.. NOTE: This is VERY important...These pistons have a VERY unique design criteria. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. Even when brought up to 4500-5500 rpm the temp would slowly climb to 140F. Free shipping. high turbulence, textured squish bands. We will be closed for the holiday weekend, enjoying some much needed family time. Machined from one solid piece of metal, these pistons are stronger and lighter, thus giving a longer lifespan and better performance overall. Voir . RK Tek Inc is your premier 2 Stroke Performance Shop.. ALL we do is 2 Stroke Engines! $6000, call/text show contact info. The kit simply addresses the issues associated with the stock (OEM) Piston. RK Tek Pistons and honning cylinders? No more "SLOPPY" OEM piston with poor piston geometry. Opens image gallery. Pistons Racing Evo SIMCA 1000 – Rallye – Murena – Bagheera – Solara 1600cc. We, usually, end up altering MANY of the OEM piston's design aspects and "correct" the short-comings we feel are present. This is the LEAST EXPENSIVE and BEST option for addressing this issue!! BEST PART: NO AFTERMARKET PIPE, Fuel controller, OR anything else is needed! After more than 10 years running, ALL variables are KNOWN! D. Danzick Free Member. RaceTec™ is the highest quality, precision manufactured piston option available, made out of forged or Billet 2618 aluminum alloy. Reliability is NOT compromised in any way, shape, or form and the cost is VERY affordable. __________________________________________________________________________________________________________________________________. The truth is that the OEM piston's tolerances are in spec, they just don't stay there. Top End Kit. We have found it common to see the piston to cylinder wall clearance DOUBLE in less than 1000 miles.. Pistons RENAULT 8 Gordini 1255cc. Lectron is celebrating 45 years of helping riders get the most from their vehicles with our high performance carburetors and EFI. $148.07. well worth it if your looking for some more performance. Sold as a set of 2. We have measured 100's of these cylinders and NONE of them have been out of spec! $199.00 + shipping . They have very a proprietary design that is unique to ALL of our pistons. Mar 9, 2017 280 54 28 stillwater MN. The failure is caused by the piston clearance in the cylinder being ill-fitting and loose, allowing the pistons to rock in the cylinder bore. Pistons RENAULT 4CV. Piston … Ski- Doo Rotax Engine Pistons and Rings The REAL reasons behind the Ski Doo 600/700/800 Twin Engine failures! Please see below to learn more about our solution! Voir. Dec 15, 2010 #1 my dad has a 02 800 the NON HO version. Our mission is to support and provide professional services to our clients by relying on a large expertise and a strong knowledge of new technologies to endorse their business development plan. Please be aware of "CLAIMS" that the OEM cylinders are over-sized from the factory!! you can also send in your stock haed and he will cut it for his domes. Kit includes caged bearings, dual ring pro x pistons, piston pins, piston rings,clips, base gasket and torque line billet head. If you are looking to take it to the next level...Look for the 858 Big Bore Kit OR the DROP IN KIT, RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). The RK Tek Line of Customs Pistons are VERY Unique... ALL pistons are designed from a blank sheet of paper and uses only the highest quality of components. Re: RK TEK head and new concept piston 2017 300 xcw test. Sell one like this. Yes, that's right, RK Tek draws results from "real world" testing RK Tek SKI-DOO 800R/ETEC Drop In Piston Kit ETEC Kit is ONLY $570 PTEK Kit is $845. You can have a BROKEN off lower skirt and the compression reading will not change! Yes, this piston is much lighter than the OEM piston and having a lighter piston will reduce piston side load pressures AND reduce the stress on the crank! RK TEK says they run the Boondocker control box but my mechanic is convinced the Power Commander V and Auto tuner is the way to go. RK Tek develops engine performance packages for ALL 2 stroke engines but specializes in Snowmobile and Motorcycle Engines. Yes, that's right, RK Tek draws results from "real world" testing, 1245 Industrial Park Rd.Preston, ID  83263 Phone: 208-852-3221, Copyright © 2017 RK Tek - All Rights ReservedCreated by Mountain West Web Design, Polaris Patriot 850 Dual Ring Direct Replacement Pistons. J'ai lu que les piston ring 2015 reglait les problemes connu sur les pro. They have very a proprietary design that is unique to ALL of our pistons. We, purposely, designed this kit to perform using the components! Below is a little information regarding the issues with the OEM Piston. So, when you hear that all these aftermarket kits have a tighter tolerance than the OEM.. it is simply NOT true! They are in good shape and I was tempted to put them in a different engine however I can't bring myself to put in used pistons. 2 SPI Pistons, Needle Bearings, Full Gasket Kit Ski-Doo 500 L/C Summit, Formula. I used Wossner(RK Tek) pistons in my machine & did so because it was the cheapest/quickest fix to address the excessive piston to cylinder wall clearance that plagues most of the 800 CFI2 engines. While we can not address ALL the issues we see with this engine we can address a very big one in the piston design.. and that is what we have done with this offering. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many … NOTE: This will address the issues associated with the OEM pistons! There are yet no reviews for this product. With this 800 CFI engine (Pro or AXYS), the lower half of the engine is dry.. meaning there is little to no fuel entering there. Hi there I just wanted to give you an update after using my bike with the new head installed. PIS6106 . RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). The spi piston is .001 to .003 bigger then the used axys piston.. How much of this is the wear of 3100 miles and the coating on the new spi piston. 18-20 HP Increase Drop-in Piston Kit for Ski Doo 800 Twin. PIS615708062E. Skirt collapse happens usually WITHOUT any scoring or visual appearances on the piston. We found something similar . ______________________________________________________________________________________________. $759.99 + shipping. Does any one have an opinion on this? Personally, I'd like to see some feedback from those running the Wossner & Wiseco pistons … Our CUSTOM pistons (Direct replacement, Drop In, AND Big Bore) are CUSTOM designed! RK Tek spent a better part of the 2008 Season developing a performance package for the new Rotax 800R(ETEC is the SAME ENGINE) Engine. This piston WILL address the issues associated with the OEM Piston! Ski-Doo Cylinder Head / Dome - RK Tek 738cc - 2004 MXZ 600 HO - #11070. Picture Information. NOTE: The RK Tek Line of Pistons are VERY different from any other production piston. Ended: Jan 21, 2021, 03:43:11 PM EST. Our CUSTOM pistons (Direct replacement, Drop In, AND Big Bore) are CUSTOM designed! Please do your research! Pistons RENAULT 4 - 5 & RODEO. It would have required a HUGE final bore machining/boring error for this to happen... again, this is a clever gimmick to try and sale you something! The new engine was torn completely down and inspected for deficiencies. Free shipping. We, REALLY, do address the OEM piston design issues with this kit. Voir. People always state "I pulled my OEM pistons and they LOOKED fine and compression reading was still in spec! Our "Hemi" design utilizes tighter squish clearances and a narrow squish band which will increase combustion efficiency and produce a more centralized push on the piston, thus increasing power. I ran RK-Tek's drop in kit and got the MPEM recurved on my 2001 mxz 800, ran like a mofo with out any issues. Sell it yourself. The piston is custom designed with different ring location and oil feed holes and pin location. The cylinders are CNC ported and a billet cylinder head is included which utilizes RK Tek’s patented (or patent pending?) Please contact us if you ever need support. 2012 Polaris Pro Rmk 800, 163 track , 1300 miles, engine just rebuilt with new crank, cylinder, RK Tek pistons, broken in, runs great. After some teardowns and inspection of MANY of the stock pistons. RK-TEC is an Automation and Electrical engineering office active in industrial sector with a specialization and large experience in chemical, life science and food industries. Image not available. PIS6010. Condition: Used. The old setup when idling the coolant temp would gradually climb of course and continue to climb without hesitation. both 2013 pros equal weight riders. The RK Tek Line of Customs Pistons are VERY Unique... ALL pistons are designed from a blank sheet of paper and uses only the highest quality of components. Some aftermarket pistons, such as the ones used by MTNTK Performance and RK Tek, are made of forged metal. Price: US $86.95 (approx C $111.06) View original item. Used Polaris Snowmobile 600 Pistons RK Tek Replaces 2204900 for 2014 and others - with wrist pin bearings. It is SOLELY related to excessive piston to cylinder wall clearance! Please see our Terms and Conditions for information about our warranty.