98' 600F What sprocket is stock?

[merwinjr]

Need a bit of help.

Just bought a 98' 600F and it seems the speedometer reads about 8% faster than what I am actually going.

Q: Did someone change out the sprocket(s) in this thing? (and yes, the tires and rims are stock)

The reason I ask is because I want to change them out, this time to get better mileage and lower RPM's at higher speeds (where I spend 80% of my time on a bike)

Right now I am running about about 6000 RPM's while only traveling (actually not what my speedo reads) about 55-57 MPH.

My goal here is to change out my sprockets and my chain, I want to do the following:

1) Change out the chain (O-Ring is expensive, is it worth it? Your opinion please!)

2) Change the front sprocket from a 14t (what I understand is stock) to a 15 or 16t. (again, your opinion please)

3) Change the rear sprocket from a 45 (again, what I understand to be stock) to a 43t.

Note: I have a feeling I am not running "stock" right now, I just put those numbers out there so it may be easier to follow what I am trying to do.

Again, I appreciate all opinions and options offered.

My goal is to:
* Lower RPM's at higher speeds (I don't care about off the line speed, when I do, I will get a different bike)

* Up my gas mileage (since so much of my time is spent over 55mph.

I am glad to return to this forum after a 3 year hiatus. (sold my 93 katana to pay for my last term of college, PAINFUL!!!)

Cheers, and all the best

[arsenic]

ok, I didn't read your whole post my ADD kicked in stock is 15/47 118 link chain.

Response:

Need a bit of help.

Just bought a 98' 600F and it seems the speedometer reads about 8% faster than what I am actually going.

Q: Did someone change out the sprocket(s) in this thing? (and yes, the tires and rims are stock)

The reason I ask is because I want to change them out, this time to get better mileage and lower RPM's at higher speeds (where I spend 80% of my time on a bike)

Right now I am running about about 6000 RPM's while only traveling (actually not what my speedo reads) about 55-57 MPH.

My goal here is to change out my sprockets and my chain, I want to do the following:

1) Change out the chain (O-Ring is expensive, is it worth it? Your opinion please!) YES!! Good god, that may be the dumbest thing I've heard today.

2) Change the front sprocket from a 14t (what I understand is stock) to a 15 or 16t. (again, your opinion please) Stock is 15 duder

3) Change the rear sprocket from a 45 (again, what I understand to be stock) to a 43t. Stock is 47 duder

Note: I have a feeling I am not running "stock" right now, I just put those numbers out there so it may be easier to follow what I am trying to do.

Again, I appreciate all opinions and options offered.

My goal is to:
* Lower RPM's at higher speeds (I don't care about off the line speed, when I do, I will get a different bike)

* Up my gas mileage (since so much of my time is spent over 55mph.

I am glad to return to this forum after a 3 year hiatus. (sold my 93 katana to pay for my last term of college, PAINFUL!!!)

Cheers, and all the best

[merwinjr]

Thank you for the response. Sadly you missed what I was trying to ask there, Duder. Will going from a 15/47 to a 16/46 ot 16/45 give me the lower RPM's I am looking for and the better gas mileage?

Thank you

[arsenic]

16/45 maybe, duder. Before you go throwing #'s around that are "supposed" to be, it might be a good idea to find out what gearing you're running now, you're speedo wouldn't be off with stock gearing.

[merwinjr]

Excellent, that is good to know. I was under the impression that the speed was gauged by the rotations of the front sprocket (trust me , I don't know, I am just going by what I was told) So is there a speedo cable on the 98+?
Thanks again for your help

Would anyone else care to chime in... Im all ears

[thetable]

Excellent, that is good to know. I was under the impression that the speed was gauged by the rotations of the front sprocket (trust me , I don't know, I am just going by what I was told) So is there a speedo cable on the 98+?
Thanks again for your help

Would anyone else care to chime in... Im all ears

Re-read arsenics statement:

your speedo wouldn't be off with stock gearing.
slight grammar edit

Yes, speedo signal comes off output shaft of trans. Go to stock gearing and work from there.

[crazyaussie]

you're speedo wouldn't be off with stock gearing.

aside from the normal 5-7% off that the factory sets it, right?

[merwinjr]

Ok, so I can assume I fall into that 5-7% ratio then maybe? That is good to know...

Now, onto my original question: getting my RPM's down by changing out the sprockets. Help please! I think I know what I'm doing, but you know what they say about "Assuming"

Thank you