Maintenance & Technical > KX500 Original
KX-500 Compression Release Mod! Easy Starting!!!
gowen:
Ahh, I think he has forged and cast confused. Because I've shattered cast pistons before from age, but have NEVER NEVER EVER seen a Wiseco collapse or even come close. They do freeze easier without proper breakin or not letting them warm up. Iridium is correct, when my dad and I built the motor on my mustang we used Forged. Extremely strong and will withstand much more than s**tty cast pistons.
Spider:
I find it hard to beleive that a company could stay in buisness as long as Wiseco has by selling a bad product.
2 cents worth
Dale
Timbowe:
Wiseco have served me well. Been using thier product for 20 years. Faultless!
Johnniespeed:
I have used Wiesco in every two stroke that I have ever took apart. I have never, ever had a piston failure or siezure. On another two stroke forum for non green bikes, they refer to Wiesco as "sieze-co" pistons. I guess some people have had problems, but I am guessing it is due to piston to wall clearance and break in procedure. Forged pistons are stronger, but they expand greater than cast.
While we are talking about pistons, how long do pistons last in the KX500? Do the skirts wear and cause the piston to get sloppy? Is the KX500 stock piston cast or forged?
gowen:
Um to answere your question.. I had a "Wiseco" in my 500 for about 2 years of every weekend hard riding (except rain) and just had it freeze this past summer and that was my error (no 2 stroke oil during a drag race) . So I'm assuming a good hard 400-500 hours is what I had in it? That would be 8 hour rides about every other weekend? And to be honest, I did not have any slop in the piston before locking it up. And the stock piston is cast.
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