400 Scrambler X upgrades
#13
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You can get your head machined but just keep in mind, HPD sells a cool head w/ added water passages for added cooling which I took advantage of since I planned on removing the fan from the front for weight savings & no problems w/ over heating. I didn't see a Wiesco pison on your list which should be added when bumping the compression stock is fine for stock but above stock should be changed. Not sure exactly the diff is in rpm between race pipe & trail pipe but the race pipe lets the engine really open up & rev higher & everything else the same, there is a big difference in performance from trail pipe & race pipe w/ appropriate clutching, I used both & prefer the race pipe. You can putt all day in the yard w/ the kids & then open it up when you want. No plug fouling or anything.
Jim
Jim
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exmotocrosser
Polaris
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09-13-2019 06:12 AM
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