Johnson 90hp and 110hp are they the same engine ?

[ril0]

Are 1980s johnson 90 and 110 hp the same engine but just tuned a bit more for the 110 hp have a chance to buy one of each the 110 has no spark so wanted to use parts from 90 to make good one.

 

[Chinewalker]

Re: Johnson 90hp and 110hp are they the same engine ?

They are quite similar. If they're the same years, then the ignitions systems should swap part for part. If they're a few years apart, there may be some subtle differences, but should swap as complete systems. 95% of the other parts are the same... again, within a given year.
- Scott

 

[ril0]

Re: Johnson 90hp and 110hp are they the same engine ?

on another tack if i could get them both running would they run succesfully as twins despite the different horse powers maybe tune or detune one slightly

 

[tashasdaddy]

Re: Johnson 90hp and 110hp are they the same engine ?

probably, you would have to tweek them, timing, props. they both need to run in their proper wide open throttle range.