vmax 150 rpm surge

[Bbrian]

i just recently boat a 2004 skeeter and took it out today and it ran out great turned about 5100 rpm no surging idled fine but at 3000 rpm the engine would surge about 300 rpm its a 2 stroke carburated vmax yamaha

 

[reeldutch]

Re: vmax 150 rpm surge

check fuel system.

start with the vent of your tank and work your way downt to the carbs.

air leaking or fuel vaprizing(resriction) will make an engine surge.

when it does it again hit the primer/choke see wat happens.