HELP !!! DASA 900

[Manny]

HEY guys i just did a compression test on my 900 dasa on the work bench and the meter says 185 psi in the front and 30 psi in the back ??? wtf but the pressior is holding what am i doing wrong ???
thanks

 

[Byeai]

Just give it to me for free lol

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[Manny]

thanks for the help

 

[Byeai]

Spark plug in the opposite hole and pressure tester in the 30 psi hole u pulled the throttle wide open and cranking it over for a few seconds

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[hink320]

Sounds like you should take the head off and see what's going on.

 

[Manny]

tried without and with plug full throttle still 30 psi
i will pull the head just asking before i do to see suggestions
thx

 

[Byeai]

How many hours are on motor

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[550/440]

Rings may be done, might need a bore, might be a dry cylinder, splash some fuel mix in the holes, turn it over with plugs in both holes, then re-try the compression test. If still low, it's time to tear it apart and start measuring ring gap, cylinders and pistons.

 

[Manny]

thanks

 

[Manny]

So took the head off and the top rig broke so damages cylinder ,piston,dome and rings

 

[550/440]

Bummer!

 

[amitchell]

That sucks bigtime, just saw the pics in the foresale thread of the carnage. Just goes to show everyone to inspect all used purchases before running. especially when lots of money is on the line.

Good luck.

 

[Manny]

i tried that sky last winter and know the owner was not expecting this !
thx