sproket changes - NEED INFO

[biggles]

I have read comments by various site members on this issue, which are very informative. However I own a 1998 750F which has a standard 15-45 sprocket with a 116 link chain.

I have the option to fit a 15-47 with a 118 link chain, I know I will benefit by acceleration and moviung mid range with the loss some top end (no prob).

My question is how much will it effect fuel consumption and by what degree will my speeedo be out considering it has an output shaft pick up.

I gather the speedo will read high but by how much. too many gatso and eager Cops around to ignore!!

Otherwise if no appreciable benefit I will fit standard.

Biggles

[Kreylyn]

I have read comments by various site members on this issue, which are very informative. However I own a 1998 750F which has a standard 15-45 sprocket with a 116 link chain.

I have the option to fit a 15-47 with a 118 link chain, I know I will benefit by acceleration and moviung mid range with the loss some top end (no prob).

My question is how much will it effect fuel consumption and by what degree will my speeedo be out considering it has an output shaft pick up.

I gather the speedo will read high but by how much. too many gatso and eager Cops around to ignore!!

Otherwise if no appreciable benefit I will fit standard.

Biggles

First, check...

http://www.gearingcommander.com/

http://www.motorcycleanchor.com/katana/45tooth.html

and then know you can pick up a speedo healer to correct/offset any needed adjustments for the readout with sprocket or tire size changes.

Here is an example...

http://www.pashnit.com/product/speedohealer.html

Decrease in gas mileage would depend primarily on how you drive it. If no changes in how you drive, I would estimate you probably will loose 2-3 miles per gal. with only going up 2 in the back.

Krey