Author Topic: Copenhagen cb 750 Cafe racer  (Read 9645 times)

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Offline Retro Rocket

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Re: Copenhagen cb 750 Cafe racer
« Reply #25 on: September 17, 2009, 05:02:47 PM »
Quote
and where and how do you mount an engine temp sensor on an aircooled engine... a head fin? in the oil return?

If you go through the thread link i gave you to the Boldor forum you will see what they did, from memory it went between the fins on the backside of the engine under the carbs.
Could you use the GSXR injection harness? thats what i would do and plumb it into the Honda harness?
Are you going to fit an Oxygen sensor as well?
I read somewhere that the 2002-2003 Gsxr600 TB's fitted our manifolds, i'll see if i can find the info.
Most of the info you need is in that boldor site thread.

Mick
« Last Edit: September 17, 2009, 05:04:58 PM by retro rocket »
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Offline Roach Carver

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Re: Copenhagen cb 750 Cafe racer
« Reply #26 on: September 17, 2009, 05:14:59 PM »
I watched a show a while back, I think it was that lowrider show. anyway, they were building those 100 spoke wheels popular with the lowrider crowd. they sealed the nipples with some sort of rubber compound.Basically covered the whole area where the rim strip resides. I assume they did this to allow the use of conventional tires w/o tubes. might work, but who knows?

deuce_454

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Re: Copenhagen cb 750 Cafe racer
« Reply #27 on: September 17, 2009, 11:38:03 PM »
Quote
and where and how do you mount an engine temp sensor on an aircooled engine... a head fin? in the oil return?

If you go through the thread link i gave you to the Bold or forum you will see what they did, from memory it went between the fins on the backside of the engine under the cabs.
Could you use the GSXR injection harness? that's what i would do and plumb it into the Honda harness?
Are you going to fit an Oxygen sensor as well?
I read somewhere that the 2002-2003 Gsxr600 TB's fitted our manifolds, I'll see if i can find the info.
Most of the info you need is in that bold or site thread.

Mick

you are right that i propably got the wrong manifold... the GSXR600K7 one i got is 40 mm.. which is on the silly side of things for an 1071cc SOHC motor witeven with a 300 deg cam.... but I'm not about to buy another before i definitely rule out that it is a no-go to fit this one... With regards to the temp gauge i guess i was trying to draw on some more experience than the on thread... but you are right that if they have something that works.... then why not just use that??
« Last Edit: September 18, 2009, 03:01:55 AM by deuce_454 »

Offline bucky katt

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Re: Copenhagen cb 750 Cafe racer
« Reply #28 on: September 18, 2009, 12:54:22 AM »
when i ran turbo air cooled vw's on the street the head temp gauge sensor was a ring under the spark plug. i ran 2, one on each head.
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Offline Ecosse

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Re: Copenhagen cb 750 Cafe racer
« Reply #29 on: September 18, 2009, 01:13:20 AM »
when i ran turbo air cooled vw's on the street the head temp gauge sensor was a ring under the spark plug. i ran 2, one on each head.

that's neat bkat! i just did a search on that and it looks like vdo and auto-meter are two brands who make the thing. wonder if it's good for the sohc/4.  ???
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deuce_454

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Re: Copenhagen cb 750 Cafe racer
« Reply #30 on: September 18, 2009, 03:04:42 AM »
when i ran turbo air cooled vw's on the street the head temp gauge sensor was a ring under the spark plug. i ran 2, one on each head.
FOUND IT! that was what i was looking for!
http://tscsensors.com/chtws0722p0kssnchts.html

Offline Ecosse

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Re: Copenhagen cb 750 Cafe racer
« Reply #31 on: September 18, 2009, 09:38:47 AM »
so, are ya going to run four of them? ;D if you're really type "a" you could then run a switch to get four readings from one gauge.
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deuce_454

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Re: Copenhagen cb 750 Cafe racer
« Reply #32 on: September 18, 2009, 10:48:18 AM »
so, are ya going to run four of them? ;D if you're really type "a" you could then run a switch to get four readings from one gauge.

no no, just the one... i just need a good engine temp reading to determine cold start enrichments.. there is only one temp input in the microsquirt.. its not for a temp gauge, just for the fuelinjection

Offline Ecosse

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Re: Copenhagen cb 750 Cafe racer
« Reply #33 on: September 18, 2009, 11:31:42 AM »

no no, just the one... i just need a good engine temp reading to determine cold start enrichments.. there is only one temp input in the microsquirt.. its not for a temp gauge, just for the fuelinjection



aaah, i see. thanks.
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Offline Retro Rocket

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Re: Copenhagen cb 750 Cafe racer
« Reply #34 on: September 19, 2009, 10:58:38 PM »
Hi Deuce, this thread may help us a bit...

http://forums.sohc4.net/index.php?topic=55032.0;topicseen

Mick
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

deuce_454

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Re: Copenhagen cb 750 Cafe racer
« Reply #35 on: September 20, 2009, 12:36:30 AM »
Hi Deuce, this thread may help us a bit...

http://forums.sohc4.net/index.php?topic=55032.0;topicseen

Mick

Thanks.. i am a bit worried about the amp draw as well... but replacing all lights with LED and as you posted a HID headlight should free up almost as many amps as the microsquirt draws... the HID running light is only 30watts.. my biggest concern is the amperage that the fuelpump will draw. the microsquirt supposedly only draws 5 amps..

Offline bigsherm

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Re: Copenhagen cb 750 Cafe racer
« Reply #36 on: October 24, 2009, 10:27:59 PM »
Hey Deuce-

     Awesome build.

     I sealed my rims to run tubeless tires.

     I covered the spoke nipple ends with squares of plastic tape, then sealed the rim with marine GOOP.  If you're not familiar with it, you can find it with the glues and sealants at a hardware store.  It comes in home/garden grade, household, and marine versions.  If you know what a rim strip looks like on a bicycle of motorcycle, that's about what I covered on the rim with the goop.  Run an internet search and you can find a how-to.  It's pretty straightforward.

Sherm

Offline nobody

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Re: Copenhagen cb 750 Cafe racer
« Reply #37 on: October 26, 2009, 01:52:16 PM »
i got some rearsets from thailand.. il moint them and i fthey look too modern ill sand and paint them...


Wow, those are some pretty pieces, do you have a link for where you got them? I'll be needing a nice set of rear sets for my 78f.
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Offline heyjones

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Re: Copenhagen cb 750 Cafe racer
« Reply #38 on: October 26, 2009, 07:55:03 PM »
This isn't your bike by any chance, is it?



I was in Copenhagen a couple months back and saw this one and another classic Honda both parked in the same place.
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Offline Sheik Yerbouti

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Re: Copenhagen cb 750 Cafe racer
« Reply #39 on: October 29, 2009, 09:09:53 PM »
i got some rearsets from thailand.. il moint them and i fthey look too modern ill sand and paint them...


Wow, those are some pretty pieces, do you have a link for where you got them? I'll be needing a nice set of rear sets for my 78f.

You can find them on ebay. Here's a similar auction here.

http://cgi.ebay.com/Universal-Yoshimura-Rearsets-fits-Suzuki-Yamaha-Honda_W0QQitemZ370251849127QQcmdZViewItemQQptZUK_Motorcycle_Parts?hash=item5634badda7#ht_1731wt_940

To the original poster. How are you going to mount them? Frame clamps or are you welding some mounts?

Offline bert96

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Re: Copenhagen cb 750 Cafe racer
« Reply #40 on: October 30, 2009, 05:19:42 AM »


 Similar,but the one on ebay are not adjustable.... :-\



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Offline Sheik Yerbouti

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Re: Copenhagen cb 750 Cafe racer
« Reply #41 on: October 30, 2009, 06:48:49 AM »
He had the adjustable ones up last night but I can't seem to find them now. Auction might have ended. Seems like a real good deal though. Any words on build quality, deuce?