Yamaha v150tlrb

Salty fisherman

Recruit
Joined
Jun 2, 2012
Messages
2
Hello,
My 150 vmax has a rough idle and missing out some.
Ive change all the full filters cleand the carbs the full tank is clean.
So i started on the plugs. The plugs where black and wet so i replaced with new ones still no chang. All plugs get fire but when the motor is running i can pull the wires off three plugs and it runs the same. The outher three plugs will allmost kill the motor when pulled off one at a time
 

Salty fisherman

Recruit
Joined
Jun 2, 2012
Messages
2
Re: Yamaha v150tlrb Rough idle

Re: Yamaha v150tlrb Rough idle

Hello,
My 150 vmax has a rough idle and missing out some.
Ive change all the full filters cleand the carbs the full tank is clean.
So i started on the plugs. The plugs where black and wet so i replaced with new ones still no chang. All plugs get fire but when the motor is running i can pull the wires off three plugs and it runs the same. The outher three plugs will allmost kill the motor when pulled off one at a time[/QUOTE]
 

erniefish

Petty Officer 2nd Class
Joined
Dec 11, 2007
Messages
153
Re: Yamaha v150tlrb Rough idle

Re: Yamaha v150tlrb Rough idle

check your by pass valves, easy to do, but they fail, and cause low rpm /idle issues, search the forum for "how to"
 
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