TOPIC:

hi all . iv just got a exhaust system (laser) and she i poping a lot when leting off the throttle witch i think meens its runing a bit lean .she had a bit of a flat spot to at 6000rpm so i moved up the throttle needle and as helped with the flat sopt .i cuold do with some help with jet sizes . thakns all

Hi Piggy,
Mine has a loud Remus exhaust that pops on the over run on a closed throttle, but I think mine is caused by a little air leaking in at the pipe join causing a little unburnt fuel to reignite, it wake up the numpty in front of me to clear the road. Unless you need big changes moving the needle up or down a notch is normally enough.
If you want to experiment with jet changes your 1st problem will be to find different jets to play with
John

Kano Nordi wrote:

... your 1st problem will be to find different jets to play with

depends on which carb you have.
Findig jets for the original DellOrto is an ease.
If you have some Kehin or Mikuni stuff.... ask in Japan

Joachim