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291 Posts
I really hate to beat the fuel mileage thing to death. But I do like science and will study most devices carefully.
I read somewhere on the Yahoo forums that the 650 has a "sweet"
spot at 4500 RPM. Now, I usually loaf around 4000 RPM, on the freeway,
comuting 12 miles each way to and from work. (We cant be to much in a hurry to get to the salt mine)
This past week, I ran mine up to 4500 on most of the last tank of gas and found a slight increase in mileage. Now, keep in mind that I had to get to
and from the freeway ramps and there were two occasions that
the traffic was stopped. My bike has the clear view XXL and I weight
270 lbs.
All in all, 4500 rpm is a touch faster than I want to go, but not unreasonably so. The speedo show approx 73 mph. mmm deduct 10%, slide the decimal point, find the position of the moon, add the airspeed of an unladen pigeon, mmmm and I should be going about 65.7 MPH, which is where I really should be anyway.
The mileage increase was approx 4 miles to the gallon. In reallity, it's
slicing hairs when compared to the savings over my large Chevy truck.
I know that airboxes and intake air horns can be tuned. I wonder if
Suzuki tuned the air intake to have this sweet spot at normal California
traffic speeds. (This would be true speed, not Suzuki speedo speeds)
I read somewhere on the Yahoo forums that the 650 has a "sweet"
spot at 4500 RPM. Now, I usually loaf around 4000 RPM, on the freeway,
comuting 12 miles each way to and from work. (We cant be to much in a hurry to get to the salt mine)
This past week, I ran mine up to 4500 on most of the last tank of gas and found a slight increase in mileage. Now, keep in mind that I had to get to
and from the freeway ramps and there were two occasions that
the traffic was stopped. My bike has the clear view XXL and I weight
270 lbs.
All in all, 4500 rpm is a touch faster than I want to go, but not unreasonably so. The speedo show approx 73 mph. mmm deduct 10%, slide the decimal point, find the position of the moon, add the airspeed of an unladen pigeon, mmmm and I should be going about 65.7 MPH, which is where I really should be anyway.
The mileage increase was approx 4 miles to the gallon. In reallity, it's
slicing hairs when compared to the savings over my large Chevy truck.
I know that airboxes and intake air horns can be tuned. I wonder if
Suzuki tuned the air intake to have this sweet spot at normal California
traffic speeds. (This would be true speed, not Suzuki speedo speeds)