RCU Forums - compression on a new motor

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yamahauler236

12-10-2008 12:49 AM

compression on a new motor

ok my buddy just got a brand new motor and it has never been used and the compression isnt very strong one you put the flywheel on you can turn it prety easy... and yes the glow plug is in. You can feel the pinch up top in the cylinder because of the way it goes through. is it bad there aint much compression?

usa98030

12-10-2008 09:53 PM

RE: compression on a new motor

I have the same question and i was thinking its ok, if it was already broken in.

yamahauler236

12-10-2008 10:25 PM

RE: compression on a new motor

ya this one isnt broken in its brand new not even ran

KRO	12-10-2008 11:50 PM

RE: compression on a new motor

I have had some engines that started out looser than others , could be normal .

What engine is it ? Did you check the bolts on the cooling head and make sure they are tight ?

yamahauler236

12-11-2008 08:00 PM

RE: compression on a new motor

its the trinity .12 draked touring edition...l i will do so.

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