bruisedreed
Cadet
- Joined
- Jul 8, 2019
- Messages
- 19
Looking for a little direction from the 9.5 gurus here. I have done a lot of work on this motor and am really not getting anywhere. When I got it I took it out for a test run. Everything was good with it but it had very little power. I set the gap on points and put new plugs in and set the gap on them as well. Checked compression and found it to be a little low @ 65psi on both cylinders but not out of spec for this motor as I understand it. Motor ran smoothly but really didn't push my 14' jon boat like I would expect. I started working on it to do some maintenance since I didn't know much history on the motor. Replaced the water pump impeller (which was working fine just wanted to do it so I knew it had been done), which lead to tearing down to the power head to replace the water tube (someone neglected to use the retainer ring last time), which lead to other things including linkage repair (long story) etc. Also did a carb kit while I had everything apart soaked the body in acetone, blew out with air and then blew carb cleaner through everything for good measure. There was no debris and no fouling really that I could see to begin with. Looked as though it may have been serviced in recent history or just used very little. Everything went back together and seemed to be in order. Took it to the lake yesterday and started it (first pull). Put in gear and accelerates but only revs enough to move me forward barely above trolling speed. The throttle plate is fully advanced to fast position. I also attempted turn the mixture linkage (fully seated then back off 1 1/2 turns to start at the time of rebuild) with no noticeable difference. My initial thought was that it was running on one cylinder so I pulled plug wires one at a time and I can confidently say that it is firing both. Just no power. No change with the hood on or off, nothing I do seems to make it run badly either. It idles fine...very smooth, starts easily. Really just looking for some direction here with the most bang for my buck as far as what I try. I would rather not use the hunt and peck method for replacing likely culprits. I really don't want to sink money into it at this point and I'm kind of scratching my head.
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