I just came back from MotoGP using my RGV,
but only managed to watch from C3 grandstand.
Fuel consumption on highway, 4.5liter can go 260km at slow speed ~100kmh, about
58 km per liter or
136 mpg.
City riding is 170~180km, about 39 km per liter, or 91 mpg. Check my siggy for fuelly.com stats.
My bike has piston size 0.25 on a standard block. Slight porting on exhaust and standard polishing on intake and transfer ports.
Standard exhaust pipe, unmodified.
Carb setting:
- Standard VM20ss carb with sponge type air filter.
- Pilot air jet 25 (standard jet 17.5 is too rich).
- 2.5 turn open for pilot air screw. Need choke for cold start. Warm/hot start no problem, one kick.
- Main jet standard 90.
- Jet needle at top clip position. There are only 3 positions.
- In short, I'm running lean to rich, from idle to WOT throttle position.
Others:
- Use palm oil 2T (RM2.50 per 1kg packet). Standard 2T setting, no extra smoke. 1 liter per 1000~1100 km of city riding.
- Use 75W-90 gear oil, various brands.
- Standard NGK BP8ES spark plug.
- Racing boy sport rims, size 1.6 front and 1.8 rear.
- Tubeless tyres, 70/90 and 80/90.
Riding experience:
- Idle is steady. Off idle response is good.
- Top speed on meter, 160kmh, but cruising easy at 110~140kmh at 1/4 throttle position.
- At 6th gear, if I go to 90kmh, difficult to cruise as the bike will jerk. This is normal IMO, caused by free-play in the rear axle shaft resonating with the engine RPM and bike speed. I either have to accelerate, decelerate, or down-shift.
- In gear acceleration to overtake on highway no problem.
This post has been edited by alexei: Oct 15 2013, 12:47 AM