1999 90 hp yamaha

[crandy]

Hello, two questions,
#1 will a '91 90 hp lower unit fit on a '99 90 hp?, the Yamaha stock numbers are identical except for the last couple numbers, one is a 10 and the other 11.
#2 I just got this engine and it runs fine, but the compression test are #1-120#, #2-145#, #3-125#. Is there any reason to worry if the middle cylinder is so much higher? thanks, Chris

 

[Ray Neudecker]

Re: 1999 90 hp yamaha

Yes it will fit. You might want to retest. Likely OK.

 

[mpsyamaha]

Re: 1999 90 hp yamaha

yeah 145 is high.... as Ray said, either re-test or just dont worry about it. it should be fine.

 

[cdrandy]

Re: 1999 90 hp yamaha

thanks guys