HOW TO: Plastic Speedo Gear Replacement
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HOW TO: Plastic Speedo Gear Replacement - 4/12/2007 2:26:17 PM
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malbojah
Posts: 380
Joined: 3/10/2006
From: Cape Cod, MA
Status: offline
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Same as before, holder spot for a write up on replacing the plastic speedo nut that fails about every 15-20k miles.
This is a step by step display of how to replace your speedometer nut on a 93-96 CBR1000F. This is actually an easy job to do. This is going to show as much as possible for those who don't know what they are doing. For those that do, why are you still reading this?? 
You can do several other things while doing this job as well, depending on how mechanically inclined you are (I'll talk about this at the end).
Stuff you'll need:
1) Tools to remove the left side fairing
2) 10mm wrench
2) 8mm socket with a minimun 2" extension
3) 12mm wrench or socket
4) The part itself:
FIRST STEP: Remove the LEFT SIDE FAIRING
Go from this:
To this:
In under 3 minutes
STEP TWO: Locate the Countershaft Sprocket Cover (Front Sprocket)
You should also remove the left foot kick plate (two 5mm hex bolts).
STEP THREE: Remove the Shifter Mechanism
Once you unbolt the 10mm and 12mm bolts give both ends a tug, and the whole assembly should come off. Becareful though, the 12mm bolt has a thin washer on the end that can easily slide off and get lost. Once you get it off, set it aside and proceed to...
STEP FOUR: Unbolt and Remove Cover
This is a 2 part step...
First unscrew and remove the speedometer cable (upper box):
Then unbolt the cover:
STEP FIVE: Remove the Sprocket Cover
Go ahead and pull that plastic nut off. Chance are, if it's not worn on the side that contacts the sprocket, it's the side that goes into the speedometer cable thats stripped. This is also a good time to clean out some of the heavier crud that has built up over time.
To put the new nut on, you may need to work it into the groove, then push really hard until it seats. Don't push so hard that something on the cover breaks, as there are no replaceable parts on it, you have to buy a new cover (approx. $100).
Once thats done, put the cover back on and lightly screw down the bolts. If you have a centerstand or a rear stand, put it down (or up) so that the rear wheel if moveable. Spin the rear wheel a couple of times while slowly bolting down the cover. This will help make sure the speedo nut is properly seated on the front sprocket bolt. Tighten down everything, reinstall the speedometer cable, put the shifter back on and your done.
About the shifter: there is a punch mark on the collared shaft that is supposed to match with a punch mark on the shifter for alignment purposes.
When I get around to it, I'll talk about the other stuff that can be done while down here. For now, off to work 
< Message edited by malbojah -- 4/12/2007 3:01:10 PM >
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I''ll fix the HOW TO''s once the forums are fixed
HOW TO: Valve Adjustment
HOW TO: Plastic Speedo Gear Replacement
HOW TO: Clutch Replacement (PICTURE INTENSE)
http://www.cbrforum.com/m_266491/mpage_1/key_/tm.htm#266491
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RE: HOW TO: Plastic Speedo Gear Replacement - 4/13/2007 12:10:22 AM
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idodirt
Posts: 727
Joined: 8/14/2006
From: South Florida, USA
Status: offline
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Nice write up, well done. Looks like a little degreaser and elbow grease are in order.
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RE: HOW TO: Plastic Speedo Gear Replacement - 
