ORIGINAL: Ratchet
Hi Jim,
To me, it sounds like your throttle plate isn't open enough to start the engine. Do you still have the idle adjusting screw in the carb? Crank it down a bit and see if the butterfly is opening a bit. Also, check to ensure you have the needles set properly, 1 3/4 for the low speed needle, and 1 1/2 for the high.
DO NOT USE A 6 volt battery pack for the ignition, you will damage it. Stick to a 4.8 volt pack only.
Good luck ...
=R=
The idle screw is still in but backed out to not affect the throttle.
The needles are set and confirmed at 1 1/2 open. I tried 1 3/4 on the low and it made no difference.
I have also tried cranking with throttle at idle,, 2 clicks off idle and 1/3 throttle. I have confirmed the throttle will open at these settings.
I have also choked with my thumb to insure it was drawing fuel and it is.
I checked with supplier of engine and they have confirmed the Ignition is ok with 6 V.
The engine is also kicking back on my hand at times when cranking. Does yours do this.
The supplier is thinking the ignition pick up on the engine is malfunctioning. I just don't know. I really don't think it is fuel delivery as I have pulled the plug and seen it wet, and with my thumb over the carb I can draw fuel until it drips out of the intake.
What do you use for an on/off switch. I am using a flight pack on/off switch. Today I plan to try cranking with battery direct connect to the ignition. Jim