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Author Topic: MS660 won't start  (Read 472 times)

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Offline Marvin69

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MS660 won't start
« on: March 21, 2020, 09:08:27 PM »
My MS660 has to sit for an hour after I shut it off before it will start again. Anyone know why?

Offline sawguy21

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Re: MS660 won't start
« Reply #1 on: March 21, 2020, 11:10:03 PM »
It is heat soaked. Check for spark with a fresh spark plug when it refuses to start, if no joy the coil is heading south. The high speed may also be set too lean, try richening it up a tich if adjustable be turning the screw 1/8 counter clockwise.
old age and treachery will always overcome youth and enthusiasm

Offline Marvin69

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Re: MS660 won't start
« Reply #2 on: March 22, 2020, 10:19:23 PM »
Thanks for the info. I need it for milling tomorrow.

Offline teacherman

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Re: MS660 won't start
« Reply #3 on: March 22, 2020, 10:40:51 PM »
Are fins clear, air movement unobstructed? Do you let it idle a minute to cool down after using it hard? That lets the electrics cool off slowly and is easier on them, or so I'm told.

Offline Marvin69

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Re: MS660 won't start
« Reply #4 on: March 23, 2020, 10:17:15 AM »
Thanks. Turned out it was the coil. Put on a new coil and works great. Thanks. Knew I could get a solution here. Appreciate it.


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