Ahm M3 Tuning

[John Jordan]

To all masters it's been a while, just have a little set back here. Recently installed my AHM M3 SPR on my superstock and I cant go full throttle on my bike, between 1/2 throttle it starts to choke out (nalulunod) but running it somewhere 1/8-1/4 throttle is fine. But when I use the DB Killer I can go 3/4 throttle. Did not try WOT yet with the DB killer. Never had this problem with my STD HGM pipe.

Setup is:
Stock bore
Pitsbike RCDI
SWR 30mm (pj 35-mj 108)
CMS Cam (in 0.06mm - ex 0.08ex)
A/F 2.00 out.

The bike idles fine.

 

[tabi1]

To all masters it's been a while, just have a little set back here. Recently installed my AHM M3 SPR on my superstock and I cant go full throttle on my bike, between 1/2 throttle it starts to choke out (nalulunod) but running it somewhere 1/8-1/4 throttle is fine. But when I use the DB Killer I can go 3/4 throttle. Did not try WOT yet with the DB killer. Never had this problem with my STD HGM pipe.

Setup is:
Stock bore
Pitsbike RCDI
SWR 30mm (pj 35-mj 108)
CMS Cam (in 0.06mm - ex 0.08ex)
A/F 2.00 out.

The bike idles fine.

I would bet your jetting is the issue. Anytime you change exhaust that affects your jetting a lot. Maybe one of the guys here can recommend the jetting but a lot of that is just trial and error until you get it dialed in.

 

[boldstardex]

do you have a picture of your sparkplug?

 

[John Jordan]

Did a plug check and its just plain rich. Dry sooty deposits and I just cant get pass more than 1/2 a throttle which is really a bummer. Its like my carb is being my engine's limiter. Not sure if I need to go down on 100mj or 105mj or even 95mj. Haaaaarghhhhh.

 

[John Jordan]

BTW, tried going WOT with the DB killers and I cant get pass 3/4 with it. What to do? What to do? Hope the masters can shed some light.