Barely cranking over

[NikNacs67]

My '06 450's been sittin for about a year. Battery went bad so since I haven't ordered a new one yet and wanted to make sure she ran decent I tried jumpin it off a lawn mower. It was barely cranking over so I tried the battery from another lawn mower.... same thing. It took my buddies truck to get it to fire up. Anyone know what could be causing this?

[Scro]

Check your decompression to make sure it's within spec. If the tolerance is too loose, it won't allow enough pressure out of the cylinder when cranking.

[bananas]

Have you every adjusted the valves?

[Thumpin440ex]

Battery, starter clutch or starter gear.. All 3 could be a issue.. If you put a new battery in and it still does it check the next 2 out, as they are notorious for breaking


John

[NikNacs67]

Valves deffineatly need adjusting. I'll check the other stuff out.

[hondamatic4588]

check valves first

[NikNacs67]

Redoing the valves as we speak. Tolerance on the decomp mech is fine. If shimmin the valves doesn't fix it,.... starter time.