Originally Posted by
Bad Tooth
Thanks ahicks. I didn't mention but I did try switching the ignition battery to 6v which didn't seem to help.
The recommended position for the L needle is 1.5 turns out. I feel like I tried to move that thing a lot! Anywhere from 1 turn to 2.5 turns out. Do you think I should just keep trying to richen the low needle?
Agree with CK1's comments 100%.
I just wanted to add those 1.5 turn out settings do nothing but assure the engine will start. If yours actually run best set that way, it's just luck/coincidence. They are in no way meant to be indicators of where the needles should be when properly tuned. Once started on the initial start, you need to tune the engine for the conditions it's running in. This will involve setting peak rpms at wide open throttle, then richening just slightly until you hear the rpm drop, then go to your low speed setting for proper idle and transition after doing that. Note that the mixture the engine is is running on is actually a combination of the fuel through the low and high systems at any given time, so you may want to recheck your high speed setting after setting the low to make sure it's still OK.
Only after all that is done are you ready to make the necessary tweaks required to really get the engine dialed in. -Al