Timing on a Evinrude 150 '88

[mjestey]

The engine runs fine in all conditions, but I just want to make sure the timing is right so I will get the best economy. It is a gas guzzler right now. I have a timing light and have done car engines before. Is there anything special I should know? What is the degree above or below TDC and I heard something mentioned about timing both sides of the engine. Thanks for everyone's previous replys.<br /><br />Mike

 

[Dhadley]

Re: Timing on a Evinrude 150 '88

You are going to get a lot of views on how to set max spark advance but no matter how you set it ALWAYS double check it under a load at WOT. <br /><br />There are a few exceptions but without knowing which heads you have I would go with max advance set at 28 BTDC. If you want to back off two degrees I don't think you will see any difference unless it's on a real light pad bottom boat. <br /><br />Check it first and see where it is now (loaded at WOT). Your gas issue may lie elsewhere. What kind of top RPM can you get? I know you don't cruise wide open but if you are lugging the motor at WOT you are lugging it at 2500 RPM.<br /><br />Good luck!