Need help

[rdduck]

02 700 vmax. Start every month ran perfect. Now won't start, and backfires so bad it separates the pipe from the silencer with a big bang. Is it dirty carbs or what? Checked spark, no spark while cranking then all plugs spark as soon as I turn key off. Is this a stator issue?

 

[74Nitro]

You may have just fouled the plugs from starting it every month. Try a brand new set.

 

[rdduck]

You may have just fouled the plugs from starting it every month. Try a brand new set.

Plugs all fire as soon as I turn key back.Obviously that's why I get the backfire in the exhaust pipe

 

[Maim]

pull it over with the plugs out by hand for spark. had ign on a doo 1/2 unplugged that would only spark correctly when pulled over.

pull the recoil and check for rust on the flywheel as that messes up spark as well.

 

[74Nitro]

Plugs all fire as soon as I turn key back.Obviously that's why I get the backfire in the exhaust pipe

But did you try a brand new set?

 

[rdduck]

But did you try a brand new set?

No .the plugs spark

 

[MrSled]

Clean the carbs and make sure it has fresh gas.

 

[74Nitro]

No .the plugs spark

Doesn't necessarily matter. When you start it every month for short run, that's a recipe for plug fouling. Did you try a brand new set?