Author Topic: ms361 not starting  (Read 2019 times)

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Offline Cut4fun

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Re: ms361 not starting
« Reply #10 on: December 10, 2012, 04:05:03 pm »
Even though new. You sure your plug isnt ****, you wont be able to see it very fine line and cause it to jump fire.

Try another plug.
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Offline haasper

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Re: ms361 not starting
« Reply #11 on: December 11, 2012, 08:55:21 am »
thanks red neck
ordered from habor freight spark plug tester
ordered fly wheel puller for ms 361
there has to be a short some place
the current is not going to the electrode to show it is firing

Offline JohnG28

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Re: ms361 not starting
« Reply #12 on: December 11, 2012, 09:46:28 am »
Even though new. You sure your plug isnt ****, you wont be able to see it very fine line and cause it to jump fire.

Try another plug.

I'd try another plug also. If the spark is dancing around the side of the plug something isn't right. I don't know how the coil could cause this condition?

Offline haasper

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Re: ms361 not starting
« Reply #13 on: December 13, 2012, 09:41:17 am »
need to buy a new flywheel
stihl part #1135 400 1200
can`t find it on the internet

plug and coil harness check ok
spark is still dancing

Offline Cut4fun .

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Re: ms361 not starting
« Reply #14 on: December 13, 2012, 10:32:40 am »
Just curious does your magnets on your flywheel still have strong pull?
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Offline Jasonlopez

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Re: ms361 not starting
« Reply #15 on: December 22, 2012, 02:10:03 am »
need to buy a new flywheel
stihl part #1135 400 1200
can`t find it on the internet

plug and coil harness led lighting check ok
spark is still dancing

Get a new spark plug

Offline haasper

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Re: ms361 not starting
« Reply #16 on: December 23, 2012, 11:34:35 am »
got the inline spark plug tester
starter pulls to hard and slow no spark
took the decom. out
good spark it pulls easy
getting a new decom valve
let you know the results when installed
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Offline 660magnum

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Re: ms361 not starting
« Reply #17 on: December 23, 2012, 01:36:10 pm »
The old decompression valve is just plugged with carbon?

In fact, it is most likely the hole in the head that goes to the decompression valve and it may be free now that you took the valve out?

Try working the valve some with it out of the cylinder and it it is free, put it back in the cylinder and try it?
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Offline Cut4fun .

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Re: ms361 not starting
« Reply #18 on: December 23, 2012, 02:21:49 pm »
I use carb cleaner in a spray can to clean up de-comps that are still usable and not leaking.
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Offline Angelo c

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Re: ms361 not starting
« Reply #19 on: December 24, 2012, 08:24:09 am »
Ok guys , new here so forgive the tone, haven't figured out the volume or sense yet.

Why was the coil replaced in the first place?
Have you tried to plop a few drops of mix in the carb or down the plug hole to see if it will pop?( fuel delivery)
You say you rebuilt the carb, can you verify correct gasket and diaphragm order and jets open and flowing.?
I keep a plug that's threaded to the size of a decomp valve so you can eliminate the valve quick and cheap.
Have you checked for sheared key way on crank? (Timing off)
What kind of pressure and vac testing have you done to hoses, case and seals ect.

You need to eliminate some issues before chasing all possilities. I vac test every line and hose new or old. Work from knowns to unknowns.  8)

 

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