I have a 26' Grady White w/ twin 200 hp Yamahas. Carbuerated , oil injected 2 stroke. Ran fine all year and all of a sudden when i idle it will idle rough and stall.
Top end and pick up are fine. If it is above 800 rpm she runs ok. I turned up the idle to about 800 in neutral which helps but still stalls occasional. Is there any simple electrical tests for the coils or carb rebuilds. It did this two years ago and the marina said they did a link and sync and everything is ok. It was ok for 2 yrs and now it is doing the exact same thing. The other engine is fine. New filters and plugs yearly, clean fresh gas. thanks for any help!!!
Top end and pick up are fine. If it is above 800 rpm she runs ok. I turned up the idle to about 800 in neutral which helps but still stalls occasional. Is there any simple electrical tests for the coils or carb rebuilds. It did this two years ago and the marina said they did a link and sync and everything is ok. It was ok for 2 yrs and now it is doing the exact same thing. The other engine is fine. New filters and plugs yearly, clean fresh gas. thanks for any help!!!