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Offline Tugboat

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What to do with an extra motor?
« on: August 07, 2018, 02:59:25 PM »
I just came into possession of a '76 750K motor from a local shop. Fella brought it in for repairs; shop disassembled & noted repairs needed (bore/pisons, valve job, gaskets, etc); fella said "Hell no, I'm not paying for all of that!" and left it there, top-end disassembled. Motor is otherwise complete.

So I really have no use for it. My motor runs and I have a spare. Should I try & part it out or just sell the whole thing as-is? And if the whole motor, where would I even start with price?
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Offline ekpent

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Re: What to do with an extra motor?
« Reply #1 on: August 07, 2018, 03:36:07 PM »
 Be nice to keep the engine together as a package and if actually in need of machine work and it is disassembled probably $100.00 to 150.00 bucks or so to the right guy. Maybe a little more depending on your regional location.
« Last Edit: August 07, 2018, 03:41:14 PM by ekpent »
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Offline 754

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Re: What to do with an extra motor?
« Reply #2 on: August 07, 2018, 06:06:51 PM »
Keep it as a spare, do up the head and cylinders..
 Don't ask me how I know this..
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Offline madmtnmotors

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Re: What to do with an extra motor?
« Reply #3 on: August 07, 2018, 06:33:48 PM »
Quote from: 754 on August 07, 2018, 06:06:51 PM
Keep it as a spare, do up the head and cylinders..
 Don't ask me how I know this..

+1

Or start a new project?

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http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
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Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
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Offline PeWe

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Re: What to do with an extra motor?
« Reply #4 on: August 08, 2018, 12:11:55 AM »
Good to have a good overhauled spare engine that can be used on your bike.
If the bikes engine get mechanical failures, swap engine and riding season is saved.
Then plenty of time to investigate and repair the other one.
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Offline blacksmith1

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Re: What to do with an extra motor?
« Reply #5 on: August 08, 2018, 02:39:20 PM »
love that trike,recon put the motor on a stand :)
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Offline przjohn

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Re: What to do with an extra motor?
« Reply #6 on: August 08, 2018, 02:54:24 PM »
I hope they got paid for their time to diagnose it.
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Offline Stev-o

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Re: What to do with an extra motor?
« Reply #7 on: August 08, 2018, 04:33:20 PM »
Can never have too many spare motors!
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Offline Gurp

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Re: What to do with an extra motor?
« Reply #8 on: August 09, 2018, 07:47:47 PM »
Quote from: Stev-o on August 08, 2018, 04:33:20 PM
Can never have too many spare motors!
True story!
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Offline 754

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Re: What to do with an extra motor?
« Reply #9 on: August 09, 2018, 08:14:29 PM »
Between 1080 and I we have 20 or more750 motors, I think 6 are KO..
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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 NobleHops

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Re: What to do with an extra motor?
« Reply #10 on: August 09, 2018, 09:52:02 PM »
Quote from: madmtnmotors on August 07, 2018, 06:33:48 PM
Quote from: 754 on August 07, 2018, 06:06:51 PM
Keep it as a spare, do up the head and cylinders..
 Don't ask me how I know this..

+1

Or start a new project?



Wilbur, that is totally badass. Did you build that?

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Offline madmtnmotors

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Re: What to do with an extra motor?
« Reply #11 on: August 10, 2018, 04:09:24 AM »
Quote from: NobleHops on August 09, 2018, 09:52:02 PM
Wilbur, that is totally badass. Did you build that?

LOL! No, but I thought it pegged the cool meter the first time I saw it too. I've seen debate about whether it was photoshopped, and I've even seen a thread where someone was trying to replicate this. I'll post a link if I find it.
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Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline MikeSimon

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Re: What to do with an extra motor?
« Reply #12 on: August 10, 2018, 05:13:20 AM »
It's a kid's bike.. isn't it?  8) 8)
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Offline blacksmith1

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Re: What to do with an extra motor?
« Reply #13 on: August 11, 2018, 12:57:54 AM »
recon wear a two part backpack,fuel one side oil the other,,no wait ,maybe rethink that ;D
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