fatten up the mid range mix (Plugs say overheated/lean)

[mortation]

Anyone have a good cheap way to fatten up my fuel/air mixture ratio for the mid range?

I think I am running lean in the mids due to some popping on hard decel and the condition of my plugs.

Its either that or m timing is off from back when I had my cams/chain re-installed.

Any input is appreciated.

[twr1776]

Have you tried shimming the needles?

[mortation]

Have you tried shimming the needles?

Nope. I forgot about that! Thanks! I can do that without pulling the rack right? Right from the top? Does anyone have a product id for the RS washers so I can grab a pack on my way home tomorrow?

[mortation]

I found it cat. 64-3022. I will grab some tomorrow and hope for the best

[Mark M]

Anyone have a good cheap way to fatten up my fuel/air mixture ratio for the mid range?

I think I am running lean in the mids due to some popping on hard decel and the condition of my plugs.

Its either that or m timing is off from back when I had my cams/chain re-installed.

Any input is appreciated.

Popping on trailing throttle is a lean pilot circuit, so I would say you need to fatten up the mixture screws as well. If it truly is lean in the mid throttle area, then raising the needles one notch will help out. Next time you are out and riding in the area you think is lean, pull the choke on a bit. If it pulls harder, then you were lean. If it bogs slightly, then you are close to right and if it bogs bad, then you are rich there.

Mark

[mortation]

OK well using only 2 washers was way to rich so I used 3. Seems a little better but I need a color tune to dial in the mixture screw then I can really tell.

I may end up going with 4 washers which is just slightly smaller than the OEM plastic washer.

Also FYI you only need to buy one bag of the washers. I bought 2 and never opened the second bag.