yam 50 autolube compression test

[antali]

my engine has been stored for 18 months,so i took it to an engineer who tested the compression on all three cylinders readings were between 80-100 all roughly the same ,but this was before the engine was run after 18 months.would the readings be different after it had been run for a while.thanks

 

[JUSTINTIME]

Re: yam 50 autolube compression test

maybe u never know
de-winterize that puppy and take it out

 

[Ray Neudecker]

Re: yam 50 autolube compression test

Not likely to see any real change. Some times the oil will be a little excessive when having been stored and raise it a little.

 

[antali]

Re: yam 50 autolube compression test

thanks.... Just cant understand why the readings were all uniform @ 80 ,would have thought if there was a problem that one may have been down or possibly 2, reading other posts i am lead to believe readings should be in the 100-150 range ,does it make a difference having three cylinders as opposed to two,Will have to test them when its run a while to see if they alter ,the tests were done literally on the first pulls of the engine after 18 months. keep my fingers crossed, thankyou for responses

 

[Ray Neudecker]

Re: yam 50 autolube compression test

Unfortunately, compression guages and their readings vary widely. This is why manufactors don't give benchmarks of compression readings.