Low speed issue - Atomic 2

[fjoyal]

I have an Atomic 2 installed in a 29 foot sailboat. The basic problem is low speed running. I have experimented with this quite a bit and am having trouble getting a consistent idle. At increased RPMs all runs fine. The choke setting for start seems to be particulalrly sensitive. It has a magneto which I believe is working properly. The engine starts and will operate fine at higher speeds.

Does anyone know how much compression (in inches) there should be? I guess it would be about the same for an Atomic 4.

Thanks in advance for any assistance you can provide.

-- Fred Joyal

[fjoyal]

OOps - I should be asking for compression in pounds (lbs).

Thanks.

-- Fred Joyal