Re: 1976 johnson 35hp down on top end


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Posted by Spike (24.58.64.136) on August 08, 2005 at 17:39:06:

In Reply to: 1976 johnson 35hp down on top end posted by Bob on August 08, 2005 at 17:26:26:

Be sure the throttle is opening all the way could simply be a cable adjustment.
Check the compression.100 lbs is good with less than 10% difference between cylinders.She will run on less but could lose some power if too low.
If compression seems low you could try a decarb treatment.If you have a fiberglass boat it could be absorbing water.Also if there is foam under the floor it may be absorbing water.Be sure the bottom is clean.Timing is not likely a problem
There is a carb syncronizing procedure but unless you have been messing around it should be ok.


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