--- title: "Tech Tips: Installing a New Piston in your Dirt Bike with Precision Concepts Racing" description: JE Pistons is proud to be a partner with Precision Concepts Racing for the 2019 season. When it was time for a new piston in one of their 2019 KX450s, we stopped by their shop to go over some tips on replacing a piston with their Lead Mechanic, Phil Valdez. image: ?t=1554315282563#keepProtocol --- [![jepistons-logo.png](https://info.jepistons.com/hs-fs/hubfs/Images/Global/JEPistons/jepistons-logo.png?width=256&height=111&name=jepistons-logo.png "jepistons-logo.png")](http://www.jepistons.com/) - [Home](http://www.jepistons.com/) - [Videos](http://blog.jepistons.com/topic/videos) - [What's New](https://blog.jepistons.com/topic/new-products) - [Tech](http://www.jepistons.com/TechCorner/Index.aspx) - [Order](http://www.jepistons.com/OrderInfo/Index.aspx) - [Company Info](http://www.jepistons.com/AboutUs.aspx) - [BLOG HOME](http://blog.jepistons.com) - [PRODUCT LINES](http://jepistons.com) - [JE PISTONS](https://blog.jepistons.com/topic/je-pistons) - [JE PRO SEAL GASKETS](https://blog.jepistons.com/topic/pro-seal) - [SPORTSMAN RACING PRODUCTS (SRP)](https://blog.jepistons.com/topic/SRP) - [NEWS](http://blog.jepistons.com/topic/news) - [NEW PRODUCTS](http://blog.jepistons.com/topic/new-products) - [ENGINE TECH](http://blog.jepistons.com/topic/engine-tech) - [PISTONS 101](http://blog.jepistons.com/topic/pistons-101) - [ENGINE BUILDS](http://blog.jepistons.com/topic/engine-builds) - [FEATURES](http://blog.jepistons.com/topic/features) - [CAR FEATURES](http://blog.jepistons.com/topic/car-features) - [INTERVIEWS](http://blog.jepistons.com/topic/interviews) - [MASTERS OF MOTORS](http://blog.jepistons.com/topic/masters-of-motors) - [ABOUT / HOW TO ENTER](http://blog.jepistons.com/je-pistons-unveils-2018-masters-of-motors-competition) - [LATEST NEWS](http://blog.jepistons.com/topic/masters-of-motors) - [EPISODES](http://blog.jepistons.com/topic/momepisode) Search the blog # JE Pistons ,[FEATURES](https://info.jepistons.com/topic/features) ,[SPORT COMPACT](https://info.jepistons.com/topic/sport-compact) ,[FORD](https://info.jepistons.com/topic/ford) ,[CHEVY](https://info.jepistons.com/topic/chevy) ,[CAR FEATURES](https://info.jepistons.com/topic/car-features) ,[ENGINE TECH](https://info.jepistons.com/topic/engine-tech) ,[Tech](https://info.jepistons.com/topic/tech) ,[Masters of Motors](https://info.jepistons.com/topic/masters-of-motors) [JE Pistons Teams Up with AMSOIL to Launch Masters of Motors Dyno Competition!](https://info.jepistons.com/je-pistons-unveils-masters-of-motors-competition) ,[FEATURES](https://info.jepistons.com/topic/features) ,[ENGINE BUILDS](https://info.jepistons.com/topic/engine-builds) ,[Powersports](https://info.jepistons.com/topic/powersports) ,[BIKE FEATURES](https://info.jepistons.com/topic/bike-features) ,[Racer Interviews](https://info.jepistons.com/topic/racer-interviews) [The 550+ HP Suzuki GS Nitrous Pro Street Drag Bike](https://info.jepistons.com/drag-racing/bike-features/pro-street/mummert-suzuki-gs) ,[NEWS](https://info.jepistons.com/topic/news) ,[Powersports](https://info.jepistons.com/topic/powersports) ,[RACING NEWS](https://info.jepistons.com/topic/racing-news) [Gulf Oil Drag Racing and their 2019 Top Fuel Bike Success](https://info.jepistons.com/gulf-oil-drag-racing-and-their-2019-top-fuel-bike-success) ,[SPORT COMPACT](https://info.jepistons.com/topic/sport-compact) ,[ENGINE BUILDS](https://info.jepistons.com/topic/engine-builds) ,[ENGINE TECH](https://info.jepistons.com/topic/engine-tech) ,[je-pistons](https://info.jepistons.com/topic/je-pistons) [Papadakis Racing Builds the First 1,000hp 2020 Supra Engine!](https://info.jepistons.com/papadakis-racing-builds-the-first-1000hp-2020-supra-engine) ,[Powersports](https://info.jepistons.com/topic/powersports) ,[ENGINE TECH](https://info.jepistons.com/topic/engine-tech) ,[BIKE FEATURES](https://info.jepistons.com/topic/bike-features) [Inside King Racing's Puma-Powered Top Fuel Motorcycle](https://info.jepistons.com/inside-king-racings-puma-powered-top-fuel-motorcycle) ![](https://info.jepistons.com/hubfs/JE%20Pistons/TECH/Precision%20Concepts%20Piston%20Install/precision_concepts_je_pistons_01.png) # [Tech Tips: Installing a New Piston in your Dirt Bike with Precision Concepts Racing](https://info.jepistons.com/tech-tips-installing-a-new-piston-in-your-dirt-bike-with-precision-concepts-racing) April 3, 2019 / by [Kevin Bailey](https://info.jepistons.com/author/kevin-bailey) - [Tweet](https://twitter.com/share) *JE Pistons is proud to partner with Precision Concepts Racing for the 2019 season. When it was time for a new piston in one of their 2019 KX450s, we stopped by their shop to go over some tips with their Lead Mechanic, Phil Valdez.* The [Chaparral Motorsports / Precision Concepts / Kawasaki Racing Team](https://precisionconceptsracing.com/race-team/) is a professional off-road race team managed by Robby Bell and the crew at [Precision Concepts](https://precisionconceptsracing.com/). Competing in [WORCS](https://worcsracing.com/) and other West Coast off-road events, the team boasts an impressive lineup, including riders Zach Bell, Blayne Thompson, Clay Hengeveld, and Robby Bell himself. The team's equipment is made up of a fleet of impressive 2019 KX450s built and tuned to endure off-road racing. In the lengthy and otherwise 'non-ideal' conditions of off-road, it's important to have equipment that not only performs, but remains reliable. When it comes to the engine, Precision Concepts chooses to run [JE Pro Series pistons](https://info.jepistons.com/pro-series-pistons-an-upgrade-for-your-new-model-dirt-bike). The Pro Series piston design not only provides the performance they want, but the forged material gives the engine the reliability and longevity they need to make it through multiple rounds of long off-road races. ![precision_concepts_je_pistons_05](https://info.jepistons.com/hs-fs/hubfs/JE%20Pistons/TECH/Precision%20Concepts%20Piston%20Install/precision_concepts_je_pistons_05.png?width=1536&name=precision_concepts_je_pistons_05.png) ***Read more about Pro Series pistons [here](https://info.jepistons.com/pro-series-pistons-an-upgrade-for-your-new-model-dirt-bike), or find one for your bike [HERE](http://www.jepistons.com/Catalogs/Powersports/Offroad-Cycle.aspx)!*** Recently, it was time for them put a fresh piston in one of the race bikes as part of preventative maintenance. We stopped by their shop and worked with lead mechanic, Phil Valdez, to go over some key tips you should know when replacing the piston in your 4-stroke machine.  We cover tips related to disassembly, piston and cylinder prep, reassembly, and break-in. Check out the video and bookmark it for the next time you're going to freshen up your top end! ![precision_concepts_je_pistons_02](https://info.jepistons.com/hs-fs/hubfs/JE%20Pistons/TECH/Precision%20Concepts%20Piston%20Install/precision_concepts_je_pistons_02.png?width=1579&name=precision_concepts_je_pistons_02.png) Topics: [featured](https://info.jepistons.com/topic/featured), [VIDEOS](https://info.jepistons.com/topic/videos), [PISTONS 101](https://info.jepistons.com/topic/pistons-101), [Powersports](https://info.jepistons.com/topic/powersports), [Tech](https://info.jepistons.com/topic/tech) ### Related posts [JE Pistons Teams Up with AMSOIL to Launch Masters of Motors Dyno Competition!](https://info.jepistons.com/je-pistons-unveils-masters-of-motors-competition) [The 550+ HP Suzuki GS Nitrous Pro Street Drag Bike](https://info.jepistons.com/drag-racing/bike-features/pro-street/mummert-suzuki-gs) [Gulf Oil Drag Racing and their 2019 Top Fuel Bike Success](https://info.jepistons.com/gulf-oil-drag-racing-and-their-2019-top-fuel-bike-success) #### Written by [Kevin Bailey](https://info.jepistons.com/author/kevin-bailey) [\[fa icon="facebook-square"\]Facebook](https://www.facebook.com/kbailey33?ref=bookmarks) [\[fa icon="linkedin-square"\]Linkedin](https://www.linkedin.com/in/kevin-bailey-64b2a8133/) ### Subscribe to Email Updates #### FOLLOW US - - - - MOST POPULAR [![How to Install Motorcycle and ATV Piston Rings](https://info.jepistons.com/hubfs/JE%20Pistons/TECH/How%20to%20Install%20Motorcycle%20Piston%20Rings/je_pistons_install_piston_rings-lead.jpg) How to Install Motorcycle and ATV Piston Rings](https://info.jepistons.com/how-to-install-motorcycle-and-atv-piston-rings) [![Wrist Pin Locks: Different Styles and How To Install Them](https://info.jepistons.com/hubfs/JE%20Pistons/TECH/Wire%20Locks/001-piston-lock-types-installation-techniques.jpg) Wrist Pin Locks: Different Styles and How To Install Them](https://info.jepistons.com/wrist-pin-locks-different-types-and-how-to-install-them) [![Compression Ratio Theory and How to Calculate in Powersports](https://info.jepistons.com/hubfs/JE%20Pistons/TECH/Compression%20Ratio/je_pistons_compression_005-ps.jpg) Compression Ratio Theory and How to Calculate in Powersports](https://info.jepistons.com/compression-ratio-theory-and-how-to-calculate-in-powersports) [![Everything You Wanted to Know About the GM LS Engine Family](https://info.jepistons.com/hs-fs/hubfs/JE%20Pistons/TECH/LS%20Engine%20Family/LS-02.jpg?t=1475023575990&width=349&name=LS-02) Everything You Wanted to Know About the GM LS Engine Family](https://info.jepistons.com/everything-you-wanted-to-know-about-the-gm-ls-engine-family) [![Inside The Honda K20C1 (Type R) Cylinder Head With 4 Piston Racing](https://info.jepistons.com/hubfs/JE%20Pistons/TECH/Honda%20k20C1%20Head/001-JE-pistons-honda-k-series-k20C-scanning.jpg) Inside The Honda K20C1 (Type R) Cylinder Head With 4 Piston Racing](https://info.jepistons.com/comparing-hondas-new-k20c-head-to-the-last-ten-k20a-series-) Videos [![JE Pistons Youtube Ad](https://info.jepistons.com/hs-fs/hubfs/Images/Blog/Ads/jepistons-youtube-01.jpg?width=800&name=jepistons-youtube-01.jpg "JE Pistons Youtube Ad")](https://www.youtube.com/user/jepistonsvideos) **JE Pistons**, 10800 Valley View Street, Cypress, California 90630 Copyright © 2026 Race Winning Brands. All Rights Reserved. [Terms & Conditions](http://www.jepistons.com/LegalTerms.aspx)