Author Topic: 1975 Amen Chopper  (Read 29081 times)

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Offline 754

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Re: 1975 Amen Chopper
« Reply #225 on: May 17, 2021, 11:29:00 AM »
 More like 500 a day or better...    the Savior will do miles....
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Lost quite a few CB 750's along the way

Offline RAFster122s

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Re: 1975 Amen Chopper
« Reply #226 on: May 17, 2021, 05:17:17 PM »
Statistically very few people live farther than 20 miles from where they grew up. More than 75% of people live close to their childhood home. So, depending upon where you live some don’t travel far. I became accustomed to traveling and have most of my life, so 25-35 miles isn’t a huge distance in my mind , but my siblings act as if it is. In big cities traveling very far takes much longer is the disadvantage from living in the suburbs or countryside.

Old people don’t travel as far usually so I think the joke above was in reference to the 10 miles being a long trip for an old codger...
David- back in the desert SW!

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #227 on: May 17, 2021, 08:05:39 PM »
Statistically very few people live farther than 20 miles from where they grew up. More than 75% of people live close to their childhood home. So, depending upon where you live some don’t travel far. I became accustomed to traveling and have most of my life, so 25-35 miles isn’t a huge distance in my mind , but my siblings act as if it is. In big cities traveling very far takes much longer is the disadvantage from living in the suburbs or countryside.

Old people don’t travel as far usually so I think the joke above was in reference to the 10 miles being a long trip for an old codger...

Agreed.

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #228 on: May 17, 2021, 08:14:57 PM »
Spent a short time on the project today (grass cutting season again). Cleaned out the master cylinder reservoir, added fresh fluid and bled. My “Mity-Vac” vacuum pump did it’s usual excellent job, and the “crooked” banjo bolt that I screwed back into the caliper with new copper washers, seems to be dry. I hate the look of it, but it’s been that way for a while..... it tightened up well, and remains leak free, I’ll leave it alone.

Offline RAFster122s

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Re: 1975 Amen Chopper
« Reply #229 on: May 18, 2021, 03:11:45 AM »
BenelliSEI, hope you do not mind the segue...
Captain America chopper on the blocks again...
Bike EXIF: Speed Read, 16 May 2021.
https://www.bikeexif.com/motorcycle-news-may-16-2021
David- back in the desert SW!

Offline britman

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Re: 1975 Amen Chopper
« Reply #230 on: May 18, 2021, 05:44:00 AM »
Old people don’t travel as far usually so I think the joke above was in reference to the 10 miles being a long trip for an old codger...

I have to respond to the above comment with an incident that took place several days ago.  I rode the Chopper to local grocery store to pick up a package of hamburger buns, needless to say the bike is not conducive for large grocery orders.  When I came out of the store a very elderly lady parked next to the bike was getting out of her mid 90's Buick Century (of course), asked "Young man what type of bike is that?"  I told her it was somewhat of a mixture turned into a 70's area chopper.  She replied that she really liked the way the motorcycle looked, in her words, "It was very cool".  When I told my wise ass Son-in-Law about the incident, his only comment was "When the hell was the last time someone called you young man?".......

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #231 on: May 18, 2021, 07:57:29 AM »
Old people don’t travel as far usually so I think the joke above was in reference to the 10 miles being a long trip for an old codger...

I have to respond to the above comment with an incident that took place several days ago.  I rode the Chopper to local grocery store to pick up a package of hamburger buns, needless to say the bike is not conducive for large grocery orders.  When I came out of the store a very elderly lady parked next to the bike was getting out of her mid 90's Buick Century (of course), asked "Young man what type of bike is that?"  I told her it was somewhat of a mixture turned into a 70's area chopper.  She replied that she really liked the way the motorcycle looked, in her words, "It was very cool".  When I told my wise ass Son-in-Law about the incident, his only comment was "When the hell was the last time someone called you young man?".......

“You’re only as old as you feel (and act.)”. Ignore your son!

Offline MauiK3

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Re: 1975 Amen Chopper
« Reply #232 on: May 18, 2021, 08:43:25 AM »
Wise Ass indeed!
Too bad he's so invested in such things, he'll be missing a lot of what matters.
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Offline Don R

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Re: 1975 Amen Chopper
« Reply #233 on: May 18, 2021, 10:00:39 AM »
 Some old folks are a hoot. I liked doing plumbing for the ladies that lived during WW2. They seemed to know how to fix a faucet or toilet and were pretty no nonsense. One mentioned she would have fixed it herself,  she had the washers but no longer had a seat cutting tool or seat wrenches. Another watched me flare a copper tube then asked aren't you supposed to put the nut on first?  Got me on that one.
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Offline 754

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Re: 1975 Amen Chopper
« Reply #234 on: May 18, 2021, 11:03:19 AM »
Did your budfy get that Amen ?
 I had to laugh.. a buddy Peter got back into riding around age 64, thot he would only ride a bit. Went thru 2 Burgmans anda big Beemer.,  first year 35, ooo kms  second year around  30, 000, next year only  20 + K..  he is done now for several reasons..
 But I laugh when I read older folks dont ride much.,
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #235 on: May 18, 2021, 12:45:53 PM »
Some old folks are a hoot. I liked doing plumbing for the ladies that lived during WW2. They seemed to know how to fix a faucet or toilet and were pretty no nonsense. One mentioned she would have fixed it herself,  she had the washers but no longer had a seat cutting tool or seat wrenches. Another watched me flare a copper tube then asked aren't you supposed to put the nut on first?  Got me on that one.

Made me laugh! Flare nuts and shrink wrap (always spot it on the floor, AFTER soldering on the connector!).

Offline Medyo Bastos

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Re: 1975 Amen Chopper
« Reply #236 on: May 18, 2021, 02:21:16 PM »
cb750 choppers are chick magnets!


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Offline 754

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Re: 1975 Amen Chopper
« Reply #237 on: May 18, 2021, 05:05:10 PM »

Did your buddy get that Amen ?
 I had to laugh.. a buddy Peter got back into riding around age 64, thot he would only ride a bit. Went thru 2 Burgmans anda big Beemer.,  first year 35, ooo kms  second year around  30, 000, next year only  20 + K..  he is done now for several reasons..
 But I laugh when I read older folks dont ride much.,
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #238 on: May 19, 2021, 01:40:27 PM »
Frank..... he called and went to see it. Waiting for news.

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #239 on: May 20, 2021, 08:42:29 PM »
Got the Mikuni carbs off the chopper today. The intake manifolds are definitely the Sudco units you guys suggested! Despite the staining on the float bowls, the insides are spotless. Float pins slid out freely, no damaged or mangled hardware! 110 Mains and 17.5 idle jets appear “new”, just going to clean them and put it all back together.

Local guys (Hildebrandt Gasket Company) make lovely rubberized gaskets. Hoping they can supply the new ones I need. Bench synced the carbs and they are spot on, so not touching them. Anyone know the float heights for these?? Sure I can find the info somewhere.
« Last Edit: May 21, 2021, 05:53:30 AM by BenelliSEI »

Offline seanbarney41

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Re: 1975 Amen Chopper
« Reply #240 on: May 21, 2021, 06:09:47 AM »
Mikuni specifies using the clear tube method with fuel level set at 3-5mm below gasket surface of bowl.
If it works good, it looks good...

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #241 on: May 21, 2021, 05:00:42 PM »
Mikuni specifies using the clear tube method with fuel level set at 3-5mm below gasket surface of bowl.

Thanks Sean, will do.

Offline Medyo Bastos

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Re: 1975 Amen Chopper
« Reply #242 on: May 21, 2021, 05:21:45 PM »
I think they are 79ish kz 650


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Offline seanbarney41

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Re: 1975 Amen Chopper
« Reply #243 on: May 21, 2021, 06:31:30 PM »
Nope kz650 have vertical ribs cast into upper slide area and either 24mm or 22mm.  First thing you need to do is measure the i.d. of the engine side carb bore...should be 26, 28, or 29mm.

Z1 Enterprises used to have a really nice web page up on how to identify, but of course now that the Jeff sold it to Dime City I have not been able to find that info.

Nice and very knowledgeable bunch over at KZRider forum can i.d. those quick.
If it works good, it looks good...

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #244 on: May 22, 2021, 06:30:28 AM »
Nope kz650 have vertical ribs cast into upper slide area and either 24mm or 22mm.  First thing you need to do is measure the i.d. of the engine side carb bore...should be 26, 28, or 29mm.

Z1 Enterprises used to have a really nice web page up on how to identify, but of course now that the Jeff sold it to Dime City I have not been able to find that info.

Nice and very knowledgeable bunch over at KZRider forum can i.d. those quick.


Measured at 27 mm. Carefully inspected every carb and there are no numbers.

Offline PeWe

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Re: 1975 Amen Chopper
« Reply #245 on: May 22, 2021, 11:23:49 AM »
Sudco specify 23 mm float height on VM29 if they are similar.

But cleartube will tell the truth
http://www.sudco.com/Catalog37Digital/files/assets/basic-html/page172.html

I ordered cleartube tool here
I bought 3 more when checking my TMR so I could see all at the same time.
https://www.z1enterprises.com/fuel-level-gauge-tool-for-vm29-rs34-rs36-smoothbore-carbs.html
« Last Edit: May 22, 2021, 11:26:23 AM by PeWe »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #246 on: May 22, 2021, 02:39:58 PM »
Thanks PEWE. I found some hard tubing nipples about the right side. I may just make four nipples and do this on the bench before I install them. If it gets messy I’ll take som pictures!

Offline PeWe

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Re: 1975 Amen Chopper
« Reply #247 on: May 22, 2021, 10:33:22 PM »
Drain plugs described here, they might differ.
http://forums.sohc4.net/index.php?topic=187030.msg2168082.msg#2168082
« Last Edit: May 22, 2021, 10:35:57 PM by PeWe »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #248 on: May 25, 2021, 02:02:15 PM »
Finished up the carbs today. As soon as the new float bowl gaskets arrive, “Test and Tune”. My first ride is not far off! As Sean B. suggested, I cobbled up a steady bracket that links the idle adjustment bracket to the frame for some additional support. While I’m waiting, started polishing the individual front spokes. COVID PROJECT! Damn thing looks pretty good.
« Last Edit: May 25, 2021, 02:04:22 PM by BenelliSEI »

Offline BenelliSEI

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Re: 1975 Amen Chopper
« Reply #249 on: May 26, 2021, 06:31:58 AM »
The carbs are in fact Mikuni VM26SS (Special Set) found on KZ 900 A4,5. And air cooled Suzuki GS750/1000’s. Info was a little tough, as the carbs have no numbers stamped anywhere!

Thanks to Sean B. For the great links!
« Last Edit: May 26, 2021, 06:33:57 AM by BenelliSEI »