Hi. I am a new member with a problem with a 2000 model Yamaha Salterwater series 130 hp o/board.
They are on a sharkcat but only one is a issue.
Running at idle it goes for 1 or 2 minutes then sends out a chuffing noise, looses revs and stops.We have changed the sparkplugs put in new fuel, cleaned the carbie intake silincer. The carbie intake silencer had about 1/4 inch of oil in the bottom and top box. Cleaned out the oil tank on the motor, which appears to have overfilled itself, and excess oil had gone into the airbox of the carbies. But every coouple of minutes still the cuffing noise and a distinctive miss. We have readjusted the oil injection pump as with the thrttle closed the arem was not against the stop as per the instruction manual. On checking the spark plugs one was black and sooty and the remaining three were between moist and wet. Do the oil injected motors require higher octane. We run unleaded which is about 91%octane. Is this sufficient for correct mixing of fuel and oil. Could it just need a good run outside now that I have done all the above things or can anyone suggest something that we may have overlooked. As the second motor is running puurfect we have tried to cut down on costs by swapping parts over to see if there is any difference. I sure hope someone can help me out. I am just a housewife who eats breathes fishing, and if we cannot solve the prob, it might be more than just the outboard I trade in.
They are on a sharkcat but only one is a issue.
Running at idle it goes for 1 or 2 minutes then sends out a chuffing noise, looses revs and stops.We have changed the sparkplugs put in new fuel, cleaned the carbie intake silincer. The carbie intake silencer had about 1/4 inch of oil in the bottom and top box. Cleaned out the oil tank on the motor, which appears to have overfilled itself, and excess oil had gone into the airbox of the carbies. But every coouple of minutes still the cuffing noise and a distinctive miss. We have readjusted the oil injection pump as with the thrttle closed the arem was not against the stop as per the instruction manual. On checking the spark plugs one was black and sooty and the remaining three were between moist and wet. Do the oil injected motors require higher octane. We run unleaded which is about 91%octane. Is this sufficient for correct mixing of fuel and oil. Could it just need a good run outside now that I have done all the above things or can anyone suggest something that we may have overlooked. As the second motor is running puurfect we have tried to cut down on costs by swapping parts over to see if there is any difference. I sure hope someone can help me out. I am just a housewife who eats breathes fishing, and if we cannot solve the prob, it might be more than just the outboard I trade in.
Comment