1985 DT 85 - What are the factory compressions

[its_macman]

Hi,

I am debating on whether to purchase a boat with this engine. Compressions (warm engine) were 170, 170, 175 PSI. I would have thought the centre cylinder would have been the lower one given it would get hotter. Is the 5 PSI difference going to be a future problem? (easy to fix?)

Regards
Mike

 

[deejaycee_2000]

Re: 1985 DT 85 - What are the factory compressions

they should all be the same ..... bt that 5 difference is nothing to worry about .... 175 is very high ......

 

[James R]

Re: 1985 DT 85 - What are the factory compressions

I would question the gauge readings. Something fishy here. Norm would be around 130 if in real good condition.