Sealine 220 advice?

[CD_Cruising]

Good Morning -

I have Sealine 220 withVolvo Penta 6 cyl engine.

grateful for advice on the following:

1. Part number for recommended spark plugs

2. part number for leads

3. Holley carb adjustment (minor) - it’s starts great but In general I think it’s running rich.

 

[DavidJ]

Keypart is your friend for spares for your 431
431A - Petrol Engine
when did you last change your air filter….could be a reason why it appears to be running rich?

 

[CD_Cruising]

Keypart is your friend for spares for your 431
431A - Petrol Engine
when did you last change your air filter….could be a reason why it appears to be running rich?

To my knowledge it doesn’t have an air filter? I thought these engines just have a flame arrestor?