Carpfisher
Seaman Apprentice
- Joined
- Nov 25, 2012
- Messages
- 43
Still working on my 92 johnson 70. Lowerr unit is all sorted out. Starts right up and idles ok with muffs at home and in the water, but when I put it in gear, it holds idle but stalls. restarts OK at first but then seems to load up and not want to restart even when trying to clear with WOT. Does restart though when manually enrichening the start solenoid. I know theres a problem with the actuation circuit and I will address that but I found a bigger fish to fry first !!!
Back at home, compression check shows 108 on #1,112 in middle and 106 at the bottom. Yes WOT.and I've already done the seafoam thing which helped bring it up from the "crap, I shouldn't of bought this thing, under 100 readings "
So I'm in it for a few nickels and feel I'm close, oh so close...
When I have it idling on muffs and pull a wire one at a time, top 2 make a noticeable difference, bottom cyl is a dead hole, no change.
Deffinitely have spark, fat at the plug, not coil or wire, switched with middle cal, still no change.
Sprayed some carb cleaner and it didn't seem to help, not in any of the cyls, it was berry mans, maybe not flammable?, we use brake clean at work and I know that stuff burns, anyway, my current path is carb/reed related, plan on pulling the bottom carb this AM. What am I looking for when I look at the reeds through the intake. It looks like I have to pull the manifold to completely access them. I take it they should be "sprung" closed. Looks like I'm looking for a completely gummed up, clogged carb and/or bent,broken cracked or sprung reeds ?
Any other thoughts ? If there was a problem with the bottom powerhead gasket?, would that cause a dead hole and if so, would(n't) it be from a lack of compression, which I know is low but Is there ?
Thanks
Carpfisher
Back at home, compression check shows 108 on #1,112 in middle and 106 at the bottom. Yes WOT.and I've already done the seafoam thing which helped bring it up from the "crap, I shouldn't of bought this thing, under 100 readings "
So I'm in it for a few nickels and feel I'm close, oh so close...
When I have it idling on muffs and pull a wire one at a time, top 2 make a noticeable difference, bottom cyl is a dead hole, no change.
Deffinitely have spark, fat at the plug, not coil or wire, switched with middle cal, still no change.
Sprayed some carb cleaner and it didn't seem to help, not in any of the cyls, it was berry mans, maybe not flammable?, we use brake clean at work and I know that stuff burns, anyway, my current path is carb/reed related, plan on pulling the bottom carb this AM. What am I looking for when I look at the reeds through the intake. It looks like I have to pull the manifold to completely access them. I take it they should be "sprung" closed. Looks like I'm looking for a completely gummed up, clogged carb and/or bent,broken cracked or sprung reeds ?
Any other thoughts ? If there was a problem with the bottom powerhead gasket?, would that cause a dead hole and if so, would(n't) it be from a lack of compression, which I know is low but Is there ?
Thanks
Carpfisher