i got a 42 with the L head. it is still 6 volt and converting to 12 isn't an option. my problem is hard stating when cold. it usually starts great when warm. it is almost as if it's not turning over fast enough to start because one time i was checking spark with a plug out and left the key on and it started right up but would not start with the spark plug in. anyways i was just wondering if anybody could give me some input on this.