big bore?

[ride4life]

what is the best bore kit for a yamaha warrior 350

 

[YAMAHAULER]

.040 over is the most common

 

[1998yamahawarrior]

You can either go just enough to clean the cylinder up(which depends how worn), all the way up to .080" over on a stock jug. Wiesco and JE are the two most common used and in my eyes the best 2, as I have used both on 2 different warriors. To get the most out of what ever you decide you'll wanna jump compression up, but stay below 11:1 compression as thats about where 93 octanes limit is on these. A good cam(springs are recommended also), port job, and get the motor breathing and you'll wake it right up!!!

 

[Gen1Pat]

Only other big bore kit is from CRW, it makes 400cc, and needs the cases bored.

 

[ride4life]

I think ill go .40 thanks

 

['00 WO-YA!]

I wouldn't really call .040 over a big bore man. I really don't even consider my .080 over a big bore. The CWR is a true big bore.

 

[bones]

cwr also have a 410cc big bore

 

[Gen1Pat]

I'd like to do the CWR big bore with the Hotrods crank.