NO ONE can figure this out yet. My son and I purchased a 2000 Yamaha 1200 SUV. We had a new rebuilt engine put in it and had an experienced independent mechanic do the work. He rebuilt the carbs and tried everything he could to figure this out. He said he talked to everyone he could. He ended giving us back the SUV as is.
The problem;
1/ When outside on hose, starts and runs fine but with a little smoke.
2/ It starts fine on the water. When reaching about 25 mph RPM boogs down quickly, backfires a couple of times and starts idleing fine again and goes through the same cycle again.
3/ The mechanic closed off the oil pump, mixed the oil manually but it did the same thing.
4/ The smoke is white
It feels like the engine is flooding. The mechanic rebuilt the carbs, adjusted them and can't figure it out. Can anyone help us??
The problem;
1/ When outside on hose, starts and runs fine but with a little smoke.
2/ It starts fine on the water. When reaching about 25 mph RPM boogs down quickly, backfires a couple of times and starts idleing fine again and goes through the same cycle again.
3/ The mechanic closed off the oil pump, mixed the oil manually but it did the same thing.
4/ The smoke is white
It feels like the engine is flooding. The mechanic rebuilt the carbs, adjusted them and can't figure it out. Can anyone help us??