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Stihl Hedgetrimmer ---hard to start

Posted by joebob 7B (My Page) on
Tue, Nov 13, 12 at 17:29

Any suggestions would be appreciated folks ----I have a Stihl gas powered hedge trimmer that is at least 10yrs old ---heavy as a hammer--- it is very hard to start and when i do get it running it runs like a deer ---- the problem is it seems to get hot ( ??? ) and if it dies will not crank again ----- I can let it sit for an hour or 2 then it is the same issue of cranking again ---i have changed the spark plug recently-----any more ideas from the forum ????
Thx ------JB

Follow-Up Postings:

RE: Stihl Hedgetrimmer ---hard to start

Check the compression before starting with a gauge or try and hold it in with your thumb or finger. Run it until it stops, check the compression again. If the compression is about the same you probably have a good cyl/piston/ring set. I would still rem the muffler and ck them through the exhaust port. If They Are Good, The Hunt Is On! The good thing is, it should be a less expensive hunt.

Such as, have you done any servicing to clean carb and fuel sys to know it is not running too lean?

Good Luck! Please Post Your Results/Solutions.

RE: Stihl Hedgetrimmer ---hard to start

I would suspect the ignition coil. When cool, it sparks strongly, but when hot the spark is not very strong. I have had one trimmer engine that exhibited this same type condition. It would start and run well until it ran out of gas. When it had to be stopped for fuel, it would never start again until it had time to cool down. I swapped the coil and it runs and starts well now when hot.

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