Some advice about carb tuning.
Only make 1 change at a time. Just 1. Makes it far easier to track any changes. If you change the main jet, mess with the needle, and play around with the idle mixture, you will never get a feel for what's going on.
Sometimes it helps to reset. Others here with your bike and similar upgrades, if any, can tell you what they run. Start there.
ONLY make jetting adjustments based on how the bike runs when fully up to temp. Like, riding it for at least 10 minutes. Otherwise, you are wasting your time.
Get the idle mixture and pilot jet size dialed in first. They are the easiest. Once you have found the fastest steady idle with the idle mixture, then move to the pilot jet. If you can't get a good steady idle between 1 turn out and 2 1/2 turns out on the idle mixture you need to change the pilot jet. Since the PE uses an air screw to adjust the mix, if less than 1 turn, go up a size. More than 2 1/2 go down.
Main jet is easy. Get the bike up to temp and apply liberal throttle. If it doesn't misbehave, do an plug chop and check the plug. You MUST do a plug chop, simply pulling the plug after riding will not reveal the actual condition of fueling at full throttle. Use plug color to determine changes.
Do the needle last, and only if you notice some issues, usually between jet transition at 1/4 or 3/4 throttle.
Set your float height to 18mm for a PE Carb as well.
|