cwc
03-10-2012, 08:27 PM
First off, I'm sorry for asking this question here but I can't post other places yet and the motor is about the same as our 250's so here goes.
I bought a project Honda Fourtrax 300 4x4 last week for $350 to try and fix up to sell. I was told it had electrical problems but did have spark at the plug, it had 4 bad tires, a winch and a big box of parts. I downloaded the service manual and printed it. The starter did not work even when straight wired. The kick start only caught about 1 out of every 5 tries but I could see spark when it did catch. From a google search I figured out it was the one way clutch bearing so I ordered a new one (whew $100), a new starter ($67) and a carb rebuild kit. I drain the oil, pull the old starter (it grinded bad when turned by hand), leaned the 4wheeler over on its side so it would be easy to work on, disconnected the oil tube, reverse lever, kick starter and pulled the cover off. Pulled the centrifugal clutch out and it sat there on its side for 5 days while parts were being delivered. Pulled the carb off and rebuilt it. Put it back on.
Got the parts, put in the new one way clutch bearing, put it all back together and sat it back on 4 wheels. Then put a new oil filter in and fresh oil, put the new starter on and traced some wires and found one cut. Fixed that and hooked up a battery. Shot a squirt of starter fluid and hit the starter button. It cranked right up BUT SMOKES REAL BAD. I thought that maybe oil got in the cylinder while it was over on it side and that it would prob burn out in a min or two. I ran it for about 5 min including riding it around the yard and it never got any better. Sat there thinking maybe the rings are bad (and they may well be) but kick starting it it has STRONG compression so I sorta think the rings are ok. After checking the oil I crank it back up and run it for about 5 or 6 min more and boy it smokes smokes smokes! I turn it off and check level again and it's showing lower on the stick than it was.
WHAT DO I DO NOW? What should I look for or test? Any and all suggestions will be grateful.
corey
I bought a project Honda Fourtrax 300 4x4 last week for $350 to try and fix up to sell. I was told it had electrical problems but did have spark at the plug, it had 4 bad tires, a winch and a big box of parts. I downloaded the service manual and printed it. The starter did not work even when straight wired. The kick start only caught about 1 out of every 5 tries but I could see spark when it did catch. From a google search I figured out it was the one way clutch bearing so I ordered a new one (whew $100), a new starter ($67) and a carb rebuild kit. I drain the oil, pull the old starter (it grinded bad when turned by hand), leaned the 4wheeler over on its side so it would be easy to work on, disconnected the oil tube, reverse lever, kick starter and pulled the cover off. Pulled the centrifugal clutch out and it sat there on its side for 5 days while parts were being delivered. Pulled the carb off and rebuilt it. Put it back on.
Got the parts, put in the new one way clutch bearing, put it all back together and sat it back on 4 wheels. Then put a new oil filter in and fresh oil, put the new starter on and traced some wires and found one cut. Fixed that and hooked up a battery. Shot a squirt of starter fluid and hit the starter button. It cranked right up BUT SMOKES REAL BAD. I thought that maybe oil got in the cylinder while it was over on it side and that it would prob burn out in a min or two. I ran it for about 5 min including riding it around the yard and it never got any better. Sat there thinking maybe the rings are bad (and they may well be) but kick starting it it has STRONG compression so I sorta think the rings are ok. After checking the oil I crank it back up and run it for about 5 or 6 min more and boy it smokes smokes smokes! I turn it off and check level again and it's showing lower on the stick than it was.
WHAT DO I DO NOW? What should I look for or test? Any and all suggestions will be grateful.
corey