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    2 stroke 2.5 trouble

    I have one of those small forward only 2.5 nissans I use for my infaltable dinghy. Lately it runs poorly. It starts quickly but begins to bog down after about 45 sec, if I choke it briefly and then un-choke it it will run great for about 25 sec. I end up having to play the choke continuously to...
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    Prop Pitch ?

    I have a 20' Down East style Flat Bottom Round Chine Center Console (Eastporter 20) W/ 93 Mariner 90 HP. I dont know the pitch of the of the prop but I think it is 13 3/4" Diam. 15" pitch. I rarely push the boat over 4000RPM, it just goes to fast. Should I get a lower pitched prop to keep my...
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    looking for rebuilt Tilt & Trim

    93 mariner 90HP 3 cyl. The Trim moor finally crapped out. I've had no Down presure for two years. ( motor would spin but internal valve leak) so I am looking for a replacement set- up<br />Single-Ram Two-wire. I will eventually repair this one and have a spare.<br /><br />nrmahoney@cox.net
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    Spark quality

    How can you measure the quality of your spark. Just because you see a spark at the plug does not mean that it is the right strength. Is there a procedure that allows one to measure the qaltiy of a spark?<br />I have a good quality volt meter and an induction AMP meter, is there some kind of...
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    Trying to find my year

    Mariner 90HP<br />Serial # OD205722<br />Mod# 7090412BDN<br /><br />Anyone know what year this is?<br />Thanks.
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    Gapless Plugs.

    My mariner 90 3 Cyl outboard uses Gapless plugs. NGK BUHW-2<br />I am interested in changing to a gapped plug, does anyone do this? and if so any recomdations on part #?<br /><br />Thanks
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    Ran 5 Gals @ 100:1 by accident

    I accidently ran 5 gals at 100:1 instead of 50:1,<br />never over 3500 RPM mostly around 3000. Motor seems fine. I am using the correct mix now but have i done damage?<br />89 Mariner 90HP
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