300EX smoking = rebuild? = bore kit? - ATVConnection.com ATV Enthusiast Community

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Old 03-20-2002, 01:31 AM
Pro Rider
Thread Starter
Join Date: Mar 2002
Posts: 210


i'm kinda looking to get a 4wheeler to ride with my friends. just don't have a lot of $$ to blow right now though. but i saw an ad for 95' 300EX, running but blows some smoke for $1300.

i don't know a lot about 4wheelers, so please bear with me. i guess my first question would be, what would cause it to smoke? obviously engine work needs to be done, so could i find a bore kit and give it some extra power while i'm at it? how much work is involved in this? i've got a friend who works at a Motorsports dealer who could probably help me out some. but i don't want to ask him if it's going to be a lot of work on him. and how much should i expect to spend to make this reliable again? (please mention any other problems you might forsee as well)

would this be worth my trouble?

many thanks,
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Old 03-20-2002, 01:53 AM
The Facility
Join Date: Nov 2001
Posts: 4,059

There is no way to guess what is wrong until you actually tear the engine down. It could be a 5.00 valve seal and then again, it could be a 300.00 complete rebuild and bore job. [or more]

300EX's in GOOD shape go for that price all the time. I would skip this one and keep checking around or talk this guy down a few hundred dollars so that you have a little room for engine work without going over the value of the machine.
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Old 03-23-2002, 03:17 PM
Weekend Warrior
Join Date: Oct 2000
Posts: 16

First find out what type of smoke. Could be blue smoke-oil black smoke-too much fuel. That could tell alot. But you can(like knowsalot said) find these all day for that price. Unsure...look around! Great riding!
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