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    Repost - Need some help please - 1999 Yamaha S115 Won't take throttle

    I would appreciate any help or suggestions from the group. Here's a list of symptoms: 1. Hard to start when cold. 2. Starting with throttle unlocked, the throttle seems "unbalanced", that is there is very little difference in the throttle position where the engine will just barely run...
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    1975 9.9 Spark Plug Questions

    I have a 1975 9.9 which is used as a sailboat auxiliary. It is a long shaft electric start and has the workboat prop (10 x 5) and reverse thrust kit. Since new it has been bad about fouling plugs. The only solution I ever found was to use ONLY Johnson 2 cylinder oil. Recently it doesn't seem...
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    Strange Ignition Arcing, 1975 Johnson 9.9 Long Shaft, Electric Start

    I have owned this engine since it was less than one year old. It is used as a sailboat auxiliary.<br />Several years ago it broke a ring and I rebuilt the power head, boring it and adding oversize pistons.<br />There was exceptionally little wear in the lower engine, cross hatching still...
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    94 Mercury 115 Shutdown, has low compression

    The motor is a 1994 Mercury 4IL electronic ignition carbureted 115HP.<br />I was running at about 2800-3000 rpm when the motor shut down like I pulled the throttle back.<br />I tilted it up and checked the prop for damage and found none.<br />I cranked it and it started it right up, but it was...
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