400exstud
07-09-2005, 10:56 AM
Well here is my story. (I am running the queit core and lid on, full system.)
First when I got my HMF full system I changed my jetting to a 180 main, moved the needle to the second clip from bottom, and turned the air/fuel mixture screw out 1/2 of a turn (to 2 3/4 out).
The thing wouldn't even run in 3rd gear or higher!
I changed the main jet to a 172 main and it was better and would at least run in 3rd gear. It ran better when I took the airbox lid off.
Then I changed to a 168 main and the thing would run OK with only the quite core out and the lid on but when I put the quiet core back in I could only drive 5 miles without fouling a spark plug.
By now I was getting frustrated so I changed to a 160 main and now at full throttle with the core in it runs good but it seems that around 1/2 throttle it is too rich.
Would it be all that bad to go back to the stock setting on the needle? I don't think that it would be too lean considering I am rich now.
Sorry about the long post but can someone guide me in the right direction.
First when I got my HMF full system I changed my jetting to a 180 main, moved the needle to the second clip from bottom, and turned the air/fuel mixture screw out 1/2 of a turn (to 2 3/4 out).
The thing wouldn't even run in 3rd gear or higher!
I changed the main jet to a 172 main and it was better and would at least run in 3rd gear. It ran better when I took the airbox lid off.
Then I changed to a 168 main and the thing would run OK with only the quite core out and the lid on but when I put the quiet core back in I could only drive 5 miles without fouling a spark plug.
By now I was getting frustrated so I changed to a 160 main and now at full throttle with the core in it runs good but it seems that around 1/2 throttle it is too rich.
Would it be all that bad to go back to the stock setting on the needle? I don't think that it would be too lean considering I am rich now.
Sorry about the long post but can someone guide me in the right direction.