CBR spedo off from +2 sprocket - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 9 (permalink) Old 08-15-2008, 01:44 AM Thread Starter
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CBR spedo off from +2 sprocket

I have a few questions about a 98 CBR F3 I just picked up. First is the speedometer is off (says about 10 mph over what the bike is really doing) and the only thing I can think of is it has a rear sprocket with two extra teeth on it. Is there a way to adjust the speedo? On my Mustang there was different teeth speedo gears you could buy depending on your rear gear application.

thanks.

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post #2 of 9 (permalink) Old 08-15-2008, 01:50 AM Thread Starter
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Also, the front fork is a little weird. It looks like it is turned a little to the left when it is riding straight. not just the handles, but the trees too. And the shaft going through the frame is a little loose (I can hear it when I hit a bump), do I just tighten the top bolt? How much? Does it need bearings?

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post #3 of 9 (permalink) Old 08-15-2008, 11:38 PM
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Sounds like you bought someone's stunt machine...the +2 on the rear gives you more low end power so the speedo reads fast and the forks are tweaked from riding wheelies...which are easier because of the +2 rear sprocket
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post #4 of 9 (permalink) Old 08-26-2008, 06:08 PM Thread Starter
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Originally Posted by Fujimoh View Post
Sounds like you bought someone's stunt machine...the +2 on the rear gives you more low end power so the speedo reads fast and the forks are tweaked from riding wheelies...which are easier because of the +2 rear sprocket
Ummm...okay, but is there a fix without having to take the gear off? I kind of like the extra "umph" off the line and I'm willing to sacrifice top-end. I'd be nice to know how fast I'm going when I see a cop, though. I think it's off by 6mph not 10.

P.s....got the bike for free, so not to concerned with if it was stunted or not, but how would you straighten the trees? Thanks.

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post #5 of 9 (permalink) Old 08-27-2008, 11:37 AM
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speedo healer will fix the speedo error... SIMPLE.

If the trees are truly bent.. you need to replace them.




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post #6 of 9 (permalink) Old 09-04-2008, 12:47 AM Thread Starter
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Originally Posted by Gas Man View Post
speedo healer will fix the speedo error... SIMPLE.

If the trees are truly bent.. you need to replace them.
Thanks bro.

It's funny, I just found out about speedo healer the other day.
I have a parts bike, so maybe I'll just pull the trees off of that one. Sorry about the "E-lag", but running internet free right now.

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post #7 of 9 (permalink) Old 09-04-2008, 02:14 PM
 
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Quote:
Originally Posted by Fujimoh View Post
Sounds like you bought someone's stunt machine...the +2 on the rear gives you more low end power so the speedo reads fast and the forks are tweaked from riding wheelies...which are easier because of the +2 rear sprocket
+2 in the rear doesn't make it a stunt machine. My 900RR is -1 up front and +2 in the rear and it's a great little canyon carver.
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post #8 of 9 (permalink) Old 09-04-2008, 09:59 PM
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I did the -1/+2 on my 9R... was great!!!




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post #9 of 9 (permalink) Old 09-10-2008, 12:01 AM Thread Starter
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Definitely with you guys on that one, I love how snappy it is off the line and through corners. That's the reason I wanted to leave the sprocket on.

Oh and Gas, the trees don't look straight left-to-right, not up-and-down, are they still bent? It just looks like the steering is turned slightly to the left, but it is driving straight? Wasn't sure if that was adjustable, the bar ends have a positive stop so I know those are straight.

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