[Yama-Doo]

Do I have to replace both pistons if only one is bad?

 

[blewbyyou]

if it aint broke dont fix it![]

 

[exciter_man]

i dont believe so but mine as well start fresh on both so theres no chance of the other one goin bad under normal riding conditions

 

[blewbyyou]

normal driving conditions dont break shit. the guy with the wallet can do what he wants but he really dosent have to. the other cylinder lives in a totally different enviroment and it will be just fine left alone![^]

 

[exciter_man]

easy ther blewbyyou we all have are own opions and theres no need to got crazy on me. alright your new here so i am not gonna tell the mod just that we on snowmobile fanatics dont bash brands or others opions alright

 

[SledHead]

AHH!! lots of testosterone(SP!) here....

To answer the question, if the other piston has good compression, its fine...

 

[NightTrain]

If only one piston is bad, you don't need to replace the other. However, you may as well throw a new set of rings on the old piston, then your compression will be like new on both cylinders.

 

[exciter_man]

Originally posted by exciter_man
[br]i dont believe so

see i didnt say you had too i was just my opion to rebuild both

 

[j-2-800]

I agree you don't have to replace the piston, the rings are a great suggestion. First thing I would do though is find out what destroyed the old piston if you already haven't.

 

[Tfin70]

Yup, I agree that if the piston is ok, leave it, but I'd at least replace the rings. This will help balance the compression between the cylinders.

 

[blewbyyou]

a new ring in an old bore? if it aint broke fix it till it is?

 

[Tfin70]

What's wrong with putting new rings on an old piston? I see no problems with this. Of course you have to make sure you deglaze the cylinder first........I mean come on, thats a given.