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View Full Version : 300EX with 350x engine?



Yamaha350x
05-09-2004, 11:33 AM
What are your opinions of a 300EX with a 350 engine? Is it better more powerful and faster revving and more torque than a stock 300EX egnine? stock vs stock? mod vs mod? What are the advages/disadvantages of a 350x engine? Does it have reverse? I want some information of the 350x engine in a 300EX. And some information of a 350x engine like starting etc...

Yamaha350x
05-09-2004, 05:29 PM
AnybodY?

deathman53
05-09-2004, 06:01 PM
here


http://forums.atvconnection.com/messageview.cfm?catid=15&threadid=362144&highlight_key=y&keyword1=350x

Yamaha350x
05-10-2004, 05:13 AM
Antbody else?

MotoXdevil7472
05-10-2004, 02:09 PM
i just finished this conversion. it is much more powerful and faster than my friends piped, filtered, jetted 300ex. the 350x does not have reverse but it has 6 gears instead of 5 like on the 300. the engine is somewhat hard to start but that is because i have the decompression disconnected. hope this helps

wilkin250r
05-10-2004, 02:34 PM
The 350X engine is condiserably more powerful and performance-oriented than the 300EX engine, and it responds well to modifications. A 350X engine may not be quite as powerful as a 400EX, but it's pretty close. A 350X will hang with a 400EX in almost any environment. A 300EX has a hard time keeping up.

Of course, as you probably already know, you lose the convenience of electric start, as well as reverse.

darrell43031
05-10-2004, 02:52 PM
to all you guys that have completed the comversion, i'm in the middle of one now. did you guys use the 250x/300ex wiring harness or did you have to buy the 350x wiring harness and cdi box thanks