'79 115HP Merc. surges

Adam E P

Recruit
Joined
Sep 30, 2002
Messages
1
Hi all,<br /><br />I've just bought a '79 115 Merc. on 16' Sidewinder. I'm having trouble starting it on damp mornings....have to use "quick start" spray in the carbs to get her going. Also, when running at or near full throttle it tends to bog down and then surges back up. Idle is very rough and cuts out when cold. Am using fresh high octane fuel. Changed plugs. Could it be old wiring or just in need of a tune up? I know very little about outboard electrics so please elaborate if you think this may be the culprit. Many thanks.
 
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