Maintenance & Technical > KX500 Original

weisco blues

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bige:
well im so upset with weisco right now i hate life. well not that bad. i cut a window in my weisco piston and chamfered the bottom skirts, only i dont have a set of rings for it, i measured weisco rings and got a crazy .069, should be .014. i called weisco and they acted all suprised, so i ordered another set from marshall and they are the same gap. i called weisco again they said they would check and measure to then send me the corrrect ones. we verified the piston and rings package part numbers are correct. so why do i get rings to small twice in a row? i put in my old oem ring and measured .014 so i know its weisco ring problem. if it werent for wanting to try my window piston so bad i would just put the oem piston back in. this makes three weeks of this crap. i have never had this problem with weisco before, i do a fresh top end ever year using weisco piston kit. im missing out on so many rides now,all i can do is look at my bike tore down and wonder if i can ever get her back together again.  thanks for all the agravation WEISCO. anybody had this issue?

Motorrad:
yep. read my motor build thread..

more issues than just rings

kwakman:
you're not alone.Wossner seem better, but the piston to cyl gap they advise is a touch optimistic.K.

Foxx4Beaver:
Are you guys having this problem with the stock 86mm set-up?.I'm in the process of getting all new bearings/seals,complete crank,brand new cylinder,etc,etc...for my 95 KX5.Reading all the problems with wiseco sucks.My question is....is anyone having these same problems with ring gap on the next sizes up....86.5mm,87mm and so on.I would have no problem sending out my new jug to get reamed out to another size and replated,IF these problems are non-exsistant with the larger sizes.It all makes me sick to my stomach knowing I've already spent $1500 in parts(and I'm sure that # will climb),and not having ANY confidence in Wiseco.  

Foxx

don46:
I run Wiesco exclusively (with the exception of the 91mm Wossner), I have never experienced the issues described by most, maybe I've been fortunate. as far as Wiseco goes I would bet that the majority of aftermarket pistons ran on this site are Wiesco. I will say wiescos are not the same as they used to be, but I still run them with great success, and wouldn't be afraid to run them. most of the issues I recall were with the rings.

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