The majority of the problem in operator error. Cranking on a starter for 20 second is bound to heat it up. A well tuned engine in decent shape should start within 5 seconds of crank time. It may take two or three 5 second cranks with maybe 15 in between to let starter cool. Think I would do a compression check on engine and then if needed new plugs and ignition and tune it up.

By increasing the wire size you lessened voltage drop giving the starter more voltage and thus more amperage.

Increasing to 12 volt only means you get to burn up a 12 V starter instead of a 6.


Dan Bentler

Last edited by leitmotif; 05/29/2011 11:13 PM.