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Chainsaw Starting Problem

Bishop's Avatar
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03-24-03, 07:42 PM   #1  
ECHO CS3000 Chain saw no fire

It was running fine, I shut it off for 1 hour, now it will not start. Plenty gas, new plug, still no fire. What's a sure-fire way to test the MAG for spark?

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03-24-03, 08:17 PM   #2  
Hello Bishop. Welcome to the Small Engine forum.

Before suspecting the magneto, I would suggest disconnecting the engine kill switch. If the switch is defective and always grounded, it would be keeping the engine from starting.

An ohm meter continuity test would also reveal if the switch is always grounded.

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03-25-03, 11:35 AM   #3  
Bishop, never trust a spark plug. Just for the sake of doing it, try another new plug...I have seen more than my share of new plugs dead out of the box....I have also had plugs that fire when testing, but not under compression. The switch is another very common grounding problem. What kind of saw is it? Does it have a two piece ignition?

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03-25-03, 12:02 PM   #4  
Oil Doc
Amen Dennis,

You must have been around a while. More than once a new plug out of the box has given me a fit. The worst luck I had was with Champion plugs, both regular and private labeled.

When I had my shop, I would only use Autolite and Bosch for the commercial guys unless I was out of stock and the last resort was a Champ.

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