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Author Topic: Speedo drive  (Read 1189 times)

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Offline Sdsbassist

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Speedo drive
« on: February 25, 2016, 05:07:51 PM »
So I need to get my tire changed but I'm nervous about the speedo drive. The screw is close to being stripped...would It be better to remove the whole drive?

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline evanphi

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Re: Speedo drive
« Reply #1 on: February 25, 2016, 05:35:52 PM »
You'll want to remove the whole axle anyway... and it should come off. Remove the disk as well.

You're talking about the M5 screw that holds the cable in? If it is close to stripped you should remove it, and put a new one in.
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--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

CB750 Shop Manual (all years), searchable text PDF
Calculating the correct input circumference for digital speedometers connected to the original speedometer drive

Offline mrfish2

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Re: Speedo drive
« Reply #2 on: February 25, 2016, 05:41:36 PM »
Better get some left handed drill bits
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Offline Stev-o

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Re: Speedo drive
« Reply #3 on: February 25, 2016, 06:16:59 PM »
Hav a JIS screwdriver?
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Offline Sdsbassist

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Re: Speedo drive
« Reply #4 on: February 25, 2016, 06:17:30 PM »
Quote from: Stev-o on February 25, 2016, 06:16:59 PM
Hav a JIS screwdriver?
Just in my pants.

Sorry. Had to.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Stev-o

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Re: Speedo drive
« Reply #5 on: February 25, 2016, 07:11:47 PM »
Quote from: Sdsbassist on February 25, 2016, 06:17:30 PM
Quote from: Stev-o on February 25, 2016, 06:16:59 PM
Hav a JIS screwdriver?
Just in my pants.

Sorry. Had to.




Well, if you are using your penis to unscrew the speedo drive, I now understand why you are having trouble!

Sorry, had to.
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Sdsbassist

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Re: Speedo drive
« Reply #6 on: February 25, 2016, 07:19:58 PM »
Niiiiice. Ya, we will get her all apart. I'm almost hoping they make me bond the title for a three year commitment. I've named her too:

Rosa Luxembourg

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Stev-o

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Re: Speedo drive
« Reply #7 on: February 25, 2016, 08:24:33 PM »
Quote from: Sdsbassist on February 25, 2016, 07:19:58 PM


Rosa Luxembourg




Isn't she a porn star?  Starred in Romancing the Bone?!!
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline 754

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Re: Speedo drive
« Reply #8 on: February 25, 2016, 09:05:45 PM »
 Why take axle or speedo drive off the wheel to change tire ? I never do..
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Lost quite a few CB 750's along the way

Offline Sdsbassist

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Re: Speedo drive
« Reply #9 on: February 25, 2016, 09:07:55 PM »
That what my thoughts were

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Online jonda500

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Re: Speedo drive
« Reply #10 on: February 25, 2016, 09:20:44 PM »
Quote from: Sdsbassist on February 25, 2016, 05:07:51 PM
So I need to get my tire changed but I'm nervous about the speedo drive. The screw is close to being stripped...would It be better to remove the whole drive?

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Better? -no, extracting and replacing with a new screw would be better, but
possible? yes - in my experience the shop would need to unscrew the axle and remove the speedo drive to fit and balance a new tyre anyway, so you could leave the speedo drive hanging on the speedo cable to avoid having to remove the stripped screw. I don't believe there's any reason to take the brake disc off.
If you're fitting the tyre yourself the axle doesn't have to be removed.
John

The first time a jis screwdriver was mentioned to me I thought Dave500 was having a lend of me...


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