China two stroke

evdama

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Joined
Oct 30, 2023
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Hello.
I've replaced two brushcutter motors recently after the same failure.
They are all the 44-5 type two stroke 52cc.
One had been running for years then stopped with the crank bearing ruined but the piston and bore in really good condition.
The other was two hours from brand new and had the exact same failure.

They were run on synthetic oil 40:1
and non-ethanol fuel when failure occoured
What else could it be?
 
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