- Joined
- Apr 2, 2008
- Messages
- 492
My 73 850 Interstate with points and single 34mm Makuni stumbles badly between approximately 1200 and 2500 RPM. It always did do this a little but now it is getting worse and to the point of making an unpleasant ride. Fiberglass tank has been sloshed (two coats) with Caswell's epoxy stuff so it is not that. At idle it is absolutely fine and from 2500 up it runs just great. I had a mishap on a ride lately where I couldn't shift much and it seemed like if I buried the throttle, the stumble slowly went away. At idle the carb seems to be a little on the rich side. It starts first kick or two when cold but the motor won't run at all with the choke on. Since it won't run with the choke on, it is slow to warm up. Even though it starts easy when cold, it can be a bear to start after it is warm but other times, no problem at all. As far as the carb, I have only cleaned it. The carb specs are
Main 220
Pilot 35
Needle 6DH2
Slide 2.5
Needle Jet P-2 (I believe)
Thanks for any help on this.
Main 220
Pilot 35
Needle 6DH2
Slide 2.5
Needle Jet P-2 (I believe)
Thanks for any help on this.