Circleburner
Member
- Aug 2, 2008
- 23
- 0
I know there are a few YZ490 guys on here and I could really use your help. I have two problems, first, trying to get this motor to work on a dirt track. Regardless of gearing, it will bog coming off the corner and then spin the rear wheel all the way to the next corner. While impressive, not very productive. How do I get some bottom end?
Second problem, does anybody have a base line jetting for a flatslide Keihin (38 PWM carb) I can't seem to get the low speed lean enough.
This is in a Bultaco Astro frame and the handling is sweet, If I could just get this motor to be predictable I would have a real weapon. Almost forgot, the motor is an 83 YZ490....Thanks
Second problem, does anybody have a base line jetting for a flatslide Keihin (38 PWM carb) I can't seem to get the low speed lean enough.
This is in a Bultaco Astro frame and the handling is sweet, If I could just get this motor to be predictable I would have a real weapon. Almost forgot, the motor is an 83 YZ490....Thanks