Questionat running temp bike hesitates between 4,000 and 7,000 rpm then clears and has smooth power. i have gone through plugs and adjusted mixture numerous times getting close but not perfect. I bought the bike 2yrs ago Yoshimura pipe and s3 jet kit. it had 9k miles then it has 25k on it now. is it poss to do the valve adj myself, what info can you send me on that also any diagrams or feedback on the correct mixture settings for carbureators .
i have gone through everything else and know that my carburetors ,mixture ,jets , and poss vale adjust along with are the issue. thank you
AnswerHi Badi,
My experience with roadracing and such modifications as described tends to say "normal condition" of the described problem. The Stage 3 kit runs well where it was designed to produce power, in the mid-range to full throttle positions.
When a stock MC is modified with performance parts, you'll loose a certain amount of tunability and reliability. Engineers design stcok engines to run well in a variety of environmental conditions. They do a outstanding job. For example, for about every 1000' of altitude cahnge, the air-fuel mixture must also be changed. In fact, at Daytona International Speeday (sea level) I would have to rejet 2-3 times throughout the day to accomodate track/air temperatures & humidity changes. Stcok engines must perform well at a variety of elevations, climates, conditions, and other elements, or we wouldn't buy them. When we stary from stock, frequent tuning is required to dial in performance for the conditions of the hour (to be technical).
Anyhow, send me an email address as requested. I'll return information files that will assist you with tuning the A/F mix and more. Good stuff.
Happy Thanksgiving!
Respectfully,
Mark Shively
