ORIGINAL: dbateman
... I never could get the engine above 100 degrees cent. It was right on the edge of fuel ramp but woould not go beyond that and the starter battery finally gave out after trying to push the RPMs up to speed. I think my starter batt. isn't gutsy enough. It's the only one I could find at 9.6 volts but they are AA cells.A six cell car pack is only 7.2 volts so once again I'm a dollar short! Doug
Sounds like you are cooling the engine too much by trying to come up to higher RPMs. I use a car pack and what I do is let the RPMs come down till you hear the pop (just a few thousand RPMs). Then give a few short bursts on the starter, enough that there are no flames but not enough to cool it down. The temp will rise quickly and as soon as the fuel is flowing come up to full RPM on the starter. Within a couple seconds the engine accelerates and jumps quicly from 23,000 to idle. Whole thing only takes about ten seconds tops.