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Lokiyfz450
03-15-2005, 10:46 AM
http://files.photojerk.com/Lokiyfz450/JEgarbage.JPG


I will not ever buy a JE piston again
SRH
03-15-2005, 04:15 PM
wow thanks for the heads up, is that brand new from them or used and cracked?
JR3
03-15-2005, 06:57 PM
All ive heard is good about je how many hours were on the piston etc
Extremeracer167
03-15-2005, 07:11 PM
^
I was thinkin the same thing. They are great pistons??
smittys440
03-15-2005, 08:04 PM
Should've got a Honda
Fred55
03-15-2005, 08:29 PM
cracking an aftermarket piston has NOTHING to do with what brand he chose......imo he got the right one
Booth440ex
03-16-2005, 05:48 AM
i'd call them up and tell them they 'll probly send you a new one for free.
benwa450r
03-16-2005, 07:12 AM
Lokiyfz450, consider yourself lucky. It could have been MUCH MUCH worse. You could be buying cases, crank, rod, piston, cylinder, etc. My JE piston let go.... and it was worse. Check out the thread under 450R page 2, "beware 13.1 JE piston owners".

JE will not send you a new piston. They were gonna sell me the exact piston at cost... like $87 bucks. I declined. Good luck.
Lokiyfz450
03-16-2005, 11:57 AM
yeah I don't want to run a JE piston again. I called the place where I bought it and let them know that I cracked the piston.

I have been running this piston since August racing and dune trips. I can't really say that the piston was over due. I replaced the rings thinking that was my problem and at the track I made about 3 laps and choked on oil.

Loki
metalmellinium
03-17-2005, 10:06 PM
Get a CP
yzf450racer111
03-21-2005, 10:05 AM
I run a je in my 450 and it fine. what type of gas are you using i run C112 with mind and I have a full season with the piston. i just changed it and i looked fine
Lokiyfz450
03-21-2005, 11:13 AM
110 trick is what I have been running, for a short time I was running 110/92 50/50 mix.
yfz450rider29
03-22-2005, 04:45 PM
Everyone has there own oppinon. I prefer the GYTR 13:1 Piston, I had last years race season on it. about 30 mx races, i went to replace it this year and it still looked new.
Lokiyfz450
03-23-2005, 12:23 PM
I am going to try a Wiseco 12.5 to 1 and see how that works. I have not heard anything bad about them yet.
mad racing
03-25-2005, 06:43 AM
we ran JE in the past for a few years and never had a problem until 2 months ago,same thing cracked down the middle. this isnt a new problem with the JE but it wont happen to one of our motors again. we use CP Pistons now