My polaris died like it was getting to much fuel, then it sorta locked up but when i turned the engine backwards it would turn forwards for a little then lock up. I think it has to do with my new exhaust. Is the cranshaft bearing bad or the piston cracked? [img]i/expressions/face-icon-small-confused.gif[/img]

 

Bet you broke a piston.Never hop up an old engine without first doing a topend

 

thats what i thought, will a topend out of a 300 trail boss work?

 

No it wont work without some major modding.You can rebuild the topend for less than $200 as long as you didnt get parts in the lower end.If you have to split the cases be sure to use new crank seals.
I have a 93 250 Trailboss too that is a decent little machine.But it is staying stock

 

I have a 1994 trail boss 300, can i pull the engine and exhaust off will it work on my 250?

 

what would you sugest to do next for a 300ex that has a 400ex piston.

 

<div class="FTQUOTE"><begin quote>Originally posted by: juttin_15

what would you sugest to do next for a 300ex that has a 400ex piston.</end quote></div>

Dont know what you mean
But I dont mess with Hondas

 

trailboss 300 and trailblazer are not compatible. Ones a 2 stroke and ones a 4stroke...correct?

 

<div class="FTQUOTE"><begin quote>Originally posted by: tbsleeper

trailboss 300 and trailblazer are not compatible. Ones a 2 stroke and ones a 4stroke...correct?</end quote></div>

300 is a 2stroke but cylinders wont interchange with a 250

 

i will buy a new topend, any sugestions