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Hello,
My 2002 Yamaha 150 TXRA just came out of the shop after a month. Motor would not run over 2300 rpm. It was only running on 3 or 6 cylinders. After diagnosing with yamaha support, they were confident the CDI was bad. Order and installed a new one, no change. Back to Yamaha support and determines it was the stator. Replaced and motor ran great.
After about 6 hours after stator fix, I was pulling kids on tube, so between 3/4 throttle and idle. I started to notice alot of blue smoke, a cloud really and itnwas getting worse. I was concerned, ready to call it a day, heading for port. I decided to open it up and try and burn it out, after a few min at 5000 rpm, smoke was gone. Continued to ski,etc all ok.
Finally headed back to port, noticed a little smoke at idle but not like before. Tilted motor all the way up and noticed two stroke oil running out from motor onto my deck. Took the cover off the motor and had a pool of oil in the Pan. Seemed the oil was leaking from the seal in the top of the oil reservoir which was full. I checked all the other connections into the motor block, all looked good with no apparent leaks.
Ran the boat again yesterday. Ran well until I was in some shallow water and needed to tilt the motor and go into reverse. The smoke picked up again. Ran it 3/4 throttle and all was fine. Back in port, I tilted the motor all the way up and more oil running out. Again seems to be coming from cap in the top of the reservoir.
Questions for the forum: could the oil leaking from the reservoir be making sit way into the carbs from the reservoir? Could the pump in the reservoir be pushing too much oil into the VST? Can a seal on the reservoir pump be replaced or should I replace the pump assembly that feeds into the top of the reservoir? Does this have anything to do with the techs swapping out my CDI then putting the old one back on or replacing the stator ?
My 2002 Yamaha 150 TXRA just came out of the shop after a month. Motor would not run over 2300 rpm. It was only running on 3 or 6 cylinders. After diagnosing with yamaha support, they were confident the CDI was bad. Order and installed a new one, no change. Back to Yamaha support and determines it was the stator. Replaced and motor ran great.
After about 6 hours after stator fix, I was pulling kids on tube, so between 3/4 throttle and idle. I started to notice alot of blue smoke, a cloud really and itnwas getting worse. I was concerned, ready to call it a day, heading for port. I decided to open it up and try and burn it out, after a few min at 5000 rpm, smoke was gone. Continued to ski,etc all ok.
Finally headed back to port, noticed a little smoke at idle but not like before. Tilted motor all the way up and noticed two stroke oil running out from motor onto my deck. Took the cover off the motor and had a pool of oil in the Pan. Seemed the oil was leaking from the seal in the top of the oil reservoir which was full. I checked all the other connections into the motor block, all looked good with no apparent leaks.
Ran the boat again yesterday. Ran well until I was in some shallow water and needed to tilt the motor and go into reverse. The smoke picked up again. Ran it 3/4 throttle and all was fine. Back in port, I tilted the motor all the way up and more oil running out. Again seems to be coming from cap in the top of the reservoir.
Questions for the forum: could the oil leaking from the reservoir be making sit way into the carbs from the reservoir? Could the pump in the reservoir be pushing too much oil into the VST? Can a seal on the reservoir pump be replaced or should I replace the pump assembly that feeds into the top of the reservoir? Does this have anything to do with the techs swapping out my CDI then putting the old one back on or replacing the stator ?
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