Author Topic: CB750 Clock Refurb Jig/Tool  (Read 3858 times)

Offline philward

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CB750 Clock Refurb Jig/Tool
« on: July 06, 2015, 05:56:01 PM »
Hi Everyone
Just finally finished the refurb on the original clocks for my K2 and thought I'd share a tip that might help. Looked at CB750faces site youtube link and was searching my local B&Q for a suitable pipe to surround clock shells and came across a '110mm ground pipe socket' that the clock surround fits nicely in.  (About a fiver). Lined it in self adhesive thin rubber tape to protect the new paint and cut slots in to allow the clamp to squeeze on the clock surround.  It then can be used with the recommended method to lever the crimp ring and when clamped to the bench also pushes the clock back to the painted surround. Additionally to the recommended cb750faces method, you can use a flat punch (I used a 6mm round bar) to gently flatten the crimp ring as the front of the crimp ring sits nicely on the 'jig'
It worked a treat for me and so thought I'd share the tip - see pictures
Phil
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline philward

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Re: CB750 Clock Refurb Jig/Tool
« Reply #1 on: July 06, 2015, 05:57:32 PM »
Here's the B&Q product code sticker
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline Bitsa (Ralph Wright - RIP)

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Re: CB750 Clock Refurb Jig/Tool
« Reply #2 on: July 06, 2015, 07:07:49 PM »
Nice one well handy
Bitsa
Long Live Best Bitter.Status Quo and Sohc Bikes and common sense which you can not teach

Offline JamesH

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Re: CB750 Clock Refurb Jig/Tool
« Reply #3 on: July 06, 2015, 08:49:37 PM »
Nice one phil that's a really simple but effective setup. Thanks for sharing. Did the foam tape come from b&q as well?

Offline UK Pete

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Re: CB750 Clock Refurb Jig/Tool
« Reply #4 on: July 06, 2015, 09:13:30 PM »
Excellent tips , thanks for sharing
pete

Offline philward

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Re: CB750 Clock Refurb Jig/Tool
« Reply #5 on: July 06, 2015, 10:10:11 PM »
Rubber strip was from ebay - I had it hanging around in the garage
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline philward

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Re: CB750 Clock Refurb Jig/Tool
« Reply #6 on: July 06, 2015, 10:16:49 PM »
Actually James, your right, it was more of a foam tape
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline philward

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Re: CB750 Clock Refurb Jig/Tool
« Reply #7 on: July 12, 2015, 08:23:05 PM »
Clocks are on and now I've got a reasonably accurate rev counter! Repo rev counter read 5000 rpm at 50 MPH! It did its job though - it got me on the road while I was expensively refurbing the original clocks.
My only regret was not putting the speedo stickers on the milometer numbers - just a bit yellow. Seemed a bit messy to do but what do they say - adds to the platina! (probably spelled that wrong)
Phil
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline philward

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Re: CB750 Clock Refurb Jig/Tool
« Reply #8 on: July 21, 2015, 10:02:21 PM »
oh the joys of restoring old bikes - just went out to test the new progressive fork spring (which where better but nothing to rave over) and as the bikes done about 500 miles opened it up a bit but the speedo sticks at 60! I think the needle might slightly bent up and maybe glass slightly out of kilta with needle spindle - another winter strip down! Rev counter suddenly started wavering as well but will check cable as had that off since last ride. AAAAAHHHHHHHHHHHHHHHH!
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline Green1

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Re: CB750 Clock Refurb Jig/Tool
« Reply #9 on: July 21, 2015, 11:07:42 PM »
I'm surprised that you didn't notice much of a difference. mine dives less under braking and is more stable when cornering.
The needle can come off after being disturbed mine came of twice after dismantling and it was reading about 150mph
Current bikes
Honda CB750k1 Valley Green Metallic
Honda CB750k1 Candy Gold
Honda CB550k Candy Jade Green
Honda CG125
Aprilia Pegaso 650
Moto guzzi 1200 sport
Kawasaki EX650R (Mine until dave pays for it)
Kawasaki ZXR400 J

Offline MarkCR750

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Re: CB750 Clock Refurb Jig/Tool
« Reply #10 on: July 21, 2015, 11:10:53 PM »
Doh!, still as you say something to keep the boredom at bay on a winter night!, thanks for the report on the springs, looks as though I'll need something heavier on the CR , might have a play around making preload spacers first, stay positive the Rev counter may have won the battle but....
Suzuki GT250A (Nostalgia)
1977 K7 CR750 (lookalike, what of I’m not sure)
Ducati 900SS (Soul & Speed)
Ducati M900 Monster (Handling & character)
Thruxton 1200 (suits me)
James Captain 197 (pure adrenaline, i.e. no brakes!)
"Eff yir gitten awvestear yir gooin te farst"
Sir J.Stewart.

Offline philward

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Re: CB750 Clock Refurb Jig/Tool
« Reply #11 on: July 22, 2015, 09:22:54 PM »
Mick/Mark - the springs are better but I havn't pushed the bike yet - Mick, you probably ride your bike a little quicker than I have so far - I  will feed back when I've done a few more miles

Anybody any knowledge on re-furbing the damping on the rev counter? Prefer to try things myself if possible rather than send it to an expert

Phil
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

 

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