Author Topic: CB750 K4 Build - The Cafe Tracer  (Read 118859 times)

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Offline budman

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Re: CB750 K4 Build
« Reply #275 on: April 06, 2016, 06:11:18 PM »
Got my head and cylinders back today.  New pistons too.
Bud

1973 CB750K3 Chopper
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Offline Stev-o

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Re: CB750 K4 Build
« Reply #276 on: April 06, 2016, 06:36:16 PM »
Beautiful
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline budman

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Re: CB750 K4 Build
« Reply #277 on: April 06, 2016, 07:06:31 PM »
Sadly I won't be able to do much work on it for a few weeks.  Got family coming in town this weekend and planning a ride next weekend. :-\
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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CB750 K4 Build
« Reply #278 on: April 12, 2016, 06:44:02 PM »
Got the cylinders painted.  I had to bust out the airbrush to get way down in there, in between the fins.
« Last Edit: April 12, 2016, 06:49:00 PM by budman »
Bud

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Re: CB750 K4 Build
« Reply #279 on: April 12, 2016, 06:53:50 PM »
What paint ya use, Bud?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline budman

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Re: CB750 K4 Build
« Reply #280 on: April 12, 2016, 07:00:23 PM »
What paint ya use, Bud?
PPG acrylic urethane over their epoxy primer.
Bud

1973 CB750K3 Chopper
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Re: CB750 K4 Build
« Reply #281 on: April 12, 2016, 08:27:32 PM »
What paint ya use, Bud?
PPG acrylic urethane over their epoxy primer.

Will that handle the heat? I just painted my motor with Duplicolor engine enamel.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline budman

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Re: CB750 K4 Build
« Reply #282 on: April 12, 2016, 09:13:35 PM »
What paint ya use, Bud?
PPG acrylic urethane over their epoxy primer.

Will that handle the heat? I just painted my motor with Duplicolor engine enamel.

Yep, better than the rattle can stuff.  Engines get painted with acrylic urethane all the time.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #283 on: April 15, 2016, 05:37:14 PM »
I spent way too much time trying to find an adapter for an oil pressure gauge.  The one that came on the engine was aluminum and chewed up.  I could have bought a factory plug, drilled and tapped it, but they're aluminum too.

The first adapter I bought I some how ordered the wrong size.  I was able to return it.  The second one I ordered was out of stock.  Finally got the third one right.  Got it off eBay and its steel.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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CB750 K4 Build
« Reply #284 on: April 16, 2016, 09:07:38 AM »
Spot the repaired fin.

Bud

1973 CB750K3 Chopper
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Re: CB750 K4 Build
« Reply #285 on: April 16, 2016, 09:10:55 AM »
You are the only one that will know!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline slikwilli420

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Re: CB750 K4 Build
« Reply #286 on: April 16, 2016, 09:37:30 AM »
I spent way too much time trying to find an adapter for an oil pressure gauge.  The one that came on the engine was aluminum and chewed up.  I could have bought a factory plug, drilled and tapped it, but they're aluminum too.

The first adapter I bought I some how ordered the wrong size.  I was able to return it.  The second one I ordered was out of stock.  Finally got the third one right.  Got it off eBay and its steel.

Where did you find the plug? I would prefer steel or SS as well. I didn't see any on ebay jus to now.
All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html
'76F CB750 Patina Redemption: http://forums.sohc4.net/index.php/topic,174871.0.html

Offline budman

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Re: CB750 K4 Build
« Reply #287 on: April 16, 2016, 10:48:53 AM »
Bud

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Re: CB750 K4 Build
« Reply #288 on: April 16, 2016, 11:13:48 AM »
Where did you find the plug? I would prefer steel or SS as well. I didn't see any on ebay jus to now.

Try here:  http://www.ebay.com/itm/Sensor-Adapter-Oil-Water-Pressure-Temp-M20x1-5-1-8-NPT-/182085778547?hash=item2a65287c73:g:aiEAAMXQgb1RWx98&vxp=mtr

Will the gauge screw right into this or will you have an 90 degree elbow so you can read it while riding?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline budman

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CB750 K4 Build
« Reply #289 on: April 16, 2016, 12:14:03 PM »
Will the gauge screw right into this or will you have an 90 degree elbow so you can read it while riding?

Yeah, I'm going to install a 90.  I found these nice looking nickel plated 90's on Ebay.  They don't look like something you find at the hardware store.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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CB750 K4 Build
« Reply #290 on: April 16, 2016, 07:03:08 PM »
Worked on the seat most of the day.  It came out pretty good, but I'm not 100% happy with it.  It needs a little more steaming and stretching.  Also, the leather I used was too thick.  The top piece is ok but it was really hard to get it to bend around the edges.  I'll probably end up redoing the side pieces at some point. 
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #291 on: April 23, 2016, 01:44:14 PM »
Last prime on the gas tank.  Just needs to be wet sanded and painted.

I also painted the head.  The valve cover is a spare.  It was a lot easier to mask the outside of the valve cover than trying to mask around the valve springs.


Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #292 on: April 23, 2016, 04:38:12 PM »
I'm cool.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #293 on: April 24, 2016, 03:03:29 PM »
I like it.

Bud

1973 CB750K3 Chopper
2021 Indian Scout

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Re: CB750 K4 Build
« Reply #294 on: April 24, 2016, 03:27:49 PM »
That's beautiful Bud.  I'm jealous, wish mine looked that good.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline budman

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Re: CB750 K4 Build
« Reply #295 on: April 24, 2016, 03:37:17 PM »
That's beautiful Bud.  I'm jealous, wish mine looked that good.

Thanks.  I'm waiting on a new primary chain tensioner.  It's being held up by some chrome that's part of the same order...then I can put the cases back together and I can paint them.  Gonna go with graphite gray metallic on the cases.  It would be awesome if I could paint them next weekend, but it looks like it'll be the following weekend.  Getting the engine mounted in the frame doesn't seem so far away.

How about some updates on your thread?
Bud

1973 CB750K3 Chopper
2021 Indian Scout

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Re: CB750 K4 Build
« Reply #296 on: April 24, 2016, 07:20:23 PM »
 Hey Man, just check'n out your build thread. Really Dig'n the Engine stand adapter you made...! 

Offline budman

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Re: CB750 K4 Build
« Reply #297 on: April 24, 2016, 08:35:41 PM »
Hey Man, just check'n out your build thread. Really Dig'n the Engine stand adapter you made...!

Thanks.  It works well.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #298 on: May 07, 2016, 01:43:12 PM »
License plate bracket.

Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline Stev-o

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Re: CB750 K4 Build
« Reply #299 on: May 07, 2016, 03:11:39 PM »
Nice.  Wher'd ya get that plate, Bud?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........