Reply To: Galloping Fastwin

[Don]

Not sure I understand “galloping”….Perhaps you could post a video. It is very tough to get these engines “dialed in” in a test tank. You can get close, but the final adjustments have to be made on the boat in the water.
Like Bill says, the initial low speed adjustment is about 1.5 turns out from gently seated.
One issue comes to mind on this engine though. The low speed needle actually threads into a collar that fits loosely in the carb body….You have to tighten the packing nut enough to jam the collar/sleeve in place… So, you may be turning the needle valve, but nothing is happening because the collar/sleeve is just spinning inside the carb body.
The other thing to keep in mind is that the high speed needs to be dialed in before attempting to dial in the low speed needle. It is near impossible to dial in the high speed needle in most test tanks…So, you might want to put the engine on the boat in the water, then reattempt the adjustments….