Team
With F2 racing no longer in business (as far as I can tell), I've been hunting for a deep fuel bowl nut. From the old F2 website before it was pulled:
The Fast-cap is a new product that came about as a result of our testing on the world's fastest dirt bike. At sustained higher speeds, the bike would start to run lean. It was running out of gas. The design of the stock float bowl cap allows fuel to flow away from the center, where the jets are fed.. The Fast-cap is designed to keep the fuel supply constant. The benefit is amazing! At sustained full throttle, like in super moto or desert racing, you can see more consistent and higher top speed. On the world's fastest dirt bike, we were able to pull 800 more RPM and 6 miles per hour top speed with no other modifications. For trail riding this also means more constant fuel and crisper throttle response.
I've seen lean out problems with a couple of SX-F 505 two wheelers at local TT events and there looks to be something in this.
Mino offer these in europe for the supermoto guys so I'm keen to try it out for this years TT champs.
It holds alot more fuel than the F2 bowl nut that's for sure.
[attachment=1579:Keihin_f...bowl_nut.pdf]
With F2 racing no longer in business (as far as I can tell), I've been hunting for a deep fuel bowl nut. From the old F2 website before it was pulled:
The Fast-cap is a new product that came about as a result of our testing on the world's fastest dirt bike. At sustained higher speeds, the bike would start to run lean. It was running out of gas. The design of the stock float bowl cap allows fuel to flow away from the center, where the jets are fed.. The Fast-cap is designed to keep the fuel supply constant. The benefit is amazing! At sustained full throttle, like in super moto or desert racing, you can see more consistent and higher top speed. On the world's fastest dirt bike, we were able to pull 800 more RPM and 6 miles per hour top speed with no other modifications. For trail riding this also means more constant fuel and crisper throttle response.
I've seen lean out problems with a couple of SX-F 505 two wheelers at local TT events and there looks to be something in this.
Mino offer these in europe for the supermoto guys so I'm keen to try it out for this years TT champs.
It holds alot more fuel than the F2 bowl nut that's for sure.
[attachment=1579:Keihin_f...bowl_nut.pdf]