Yamaha 70 bogging down

C_evans4

Recruit
Joined
May 28, 2020
Messages
1
Through series of unfortunate events last weekend I now have a motor that doesn’t 2001 Yamaha 70tlrz that doesn’t want to act right. Long story short the rubber keeper for the oil cap got sucked into the top carb, the rubber disk on the end ended up in the carb, (motor was NOT running when it broke) unbolted carb, disconnected fuel line removed rubber disk, reassembled, worked the air out of the system and the motor ran fine. Fast forward a couple hours, fired motor back up ran 3-4 miles with no problems at all shut the motor back off for 20-25 mins cranked back up normal, but would bog down and cut off when taking off. Top carb was not getting the fuel it should, but I can cover it with my hand and it will catch up and run normally after about 15 mins or running everything is normal, but after sitting 5 mins the same thing happens. Where do I start? Getting air into fuel? Stuck float? Jostled some trash in the carb bad have a clogged jet now? Primer bulb stays hard and squeezing it while taking off doesn’t change anything. Sorry for the long post just trying to cut down on question. TIA
 

tblshur

Senior Chief Petty Officer
Joined
Aug 24, 2011
Messages
688
Sounds like the trash stuck in a fitting or line or carb maybe one of the other carbs
 
Top