Mccullock 610 plug gap - McCulloch Pro Mac 605 610 645 650 655 92466

won't on a petrol driven unit
the chain will run if the engine idle is too high as is driven by a centrifugal clutch
the brake stops the drive by a brake action and will burn out if engaged with the engine at high rpm

Yes indeed, you need a gap between the flywheel and the magneto! What about that gap? It appears that your post is not even a question, but a sentence fragment!

I've never heard of the saw but it is probably a McCullock derivative. Try either 0.5mm or 30 thou (of an inch). It won't be far out and should get you out of trouble.

Keep in mind... Gasses compress, liquids do not. Remove the spark plug. Hold the saw so the spark plug hole is the lowest part of the engine... and pointed away from you. Pull the starter cord rapidly until all fluids are purged from the crankcase. If it happens again... rebuild or replace the carb. Good Luck !!

For spark plug and gap information, please refer to your owners manual.

You may contact the manufacturer, download manuals, check fuel/oil ratios, order parts, find your local service center, and view other resources using these links:

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What is the correct fuel mixture for McCulloch products Chainsaw Trimmer...
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I trust this information has proven beneficial.

Please refer to your owners manual.

You may contact the manufacturer, download manuals, check fuel/oil ratios, order parts, find your local service center, and view other resources using these links:

Contact us
User manuals
What is the correct fuel mixture for McCulloch products Chainsaw Trimmer...
McCulloch Service
McCULLOCH PARTS ACCESSORIES

I trust this information has proven beneficial.

If I am correct it is Pro Mac 610, IPL 11-600041??. M&D Mower has the clutch assembly (Item 7) for $11.49 plus S&H. The drum and sprocket assembly is also available for about $3 additional. I ask you phone them @ 866-914-1252. Please have your saw within easy reach.

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.

Lou

Thank You for using FixYa.

When it won't start, remove the spark plug and test for spark--it should be blue and snappy. If weak or nothing, try a new plug. If still nothing, the ignition module may be failing from engine heat. Before replacing same, check the module gap to the flywheel magnets with a thin business card. If it seems excessive, insert the card into the gap, loosen the mounting screws and allow the module poles to contact the magnets, then re-tighten the screws. Rotate the wheel to remove the gauge, then rotate it one full turn to make sure the gap doesn't close up. Recheck for spark. If the module dies from the heat, replace it. Hope this helps!

is the air gap at the ignition pickup correct is the plug cap & lead in good order ie no visible cracks in either lead or cap check the conections at the coil are all fuses serviceable try these for a start if no luck get back to me

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