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Any chainsaw repair folks around Northamptonshire


nemcc
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3 hours ago, nemcc said:

It's a 500i.  Lost a clutch spring and fear part of it may have gone somewhere it shouldn't as saw will start but then stop. Bugger 

I really cannot see any route a clutch spring could take to stop the engine running other than jamming something in the chain case area.

 

As with all these saws that run for a little lime then stop my first look would be through the exhaust port to look and the piston and rings, if they are good then we can start with swapping the spark plug and move on from there.

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If it was locking the drum to the clutch somehow or interfering with the oiler arm then it may stop the saw at low revs. These engines don't make much power at idle speeds and a slight impingement will stall the engine.

Just a case of removing the drum and clutch, replacing the spring, clearing the broken parts, reassemble and test.

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