2001 yamaha warrior 350 max piston size - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 04-01-2008, 02:26 PM
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2001 yamaha warrior 350 max piston size

Hey all i am trying to build a warrior for my son and from no help from my local dealers i am here to ask all of you. i have a 2001 warrior that i have put a stage 2 cam and a hotrods crank and other mods done but what iam trying to fined out is the max size of piston i can use with out damage to the motor stock cyclinder is 83mm bore and iam looking at boring it out for a 85mm piston can it be done with out damage.

Last edited by yamahaman; 04-01-2008 at 02:28 PM.
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post #2 of (permalink) Old 01-05-2009, 09:48 PM
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you can go to a 85mm piston with no damage to the motor, i got the same atv for my son with the stage 2 cam, hotrod crank,and a boat load of other mods. i had a (93mm) i think not for sure with out looking at the paper work. you can go to LA sleeve's web site and order them. i took the jug to a machine shop here in Kansas and they got the new sleeve and piston.
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