New Vulcan owner fron Denver - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 29 (permalink) Old 01-11-2018, 12:50 AM Thread Starter
Diesel Tech
 
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New Vulcan owner from Denver

Just picked up an 89 Vulcan with 1,100 miles for a song.
Very good shape for its age. Garage kept, owner died 10 years ago and the wife finally decided to sell it.
I was looking for a Moto Guzzi, but after seeing this has so many rave reviews over the years, shaft drive, hydraulic tappets and classic simple design, I had to jump on it.

It's missing the toolbox, air filter cover chrome is peeling, carbs are fouled with old gas (but ran on starting fluid), front struts are leaking, horn doesn't work, tall backrest pad needs reupholstered and the tries are dry rotted.
I plan to replace the engine mounts, brake lines, coolant hoses and seals, regulator, final drive seal...pretty much everything rubber and make this a long-term keeper.
Full LED conversion will come after I get everything settled in and make sure the engine isn't going to puke every gasket from sitting so long.
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1989 VN750
Highway blaster

2006 Honda Rebel Diesel
100mpg, low and slow

1982 Mercedes 300D
Modified engine, 4-speed manual

Last edited by DenverDiesel; 01-27-2018 at 07:49 PM.
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post #2 of 29 (permalink) Old 01-11-2018, 02:18 AM
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Welcome aboard! Good luck with all the odds & ends.

1992 US-nonCA * tuxedo mod * r/r relocated

Vulcan slang for newcomers
Service Manual Download
Wiring Diagram + annotations * still undergoing revisions, but still more useful than the generic one. Let me know if you find mistakes or think something additional should be added
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post #3 of 29 (permalink) Old 01-11-2018, 08:04 AM
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welcome to the nucking futhouse

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ONE RATS ASS GIVEN PER POST
Support your local FREEBIRDS MC
1986/5 Vn700/750 Frankenfook cross eyed bitch "Mellisa Fayhe"
I am a BIKER and i'm proud.FREEBIRDS MC CENTRAL NY

lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #4 of 29 (permalink) Old 01-11-2018, 10:55 AM
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Welcome! When I saw you mention replacing rubber parts on an old Vulcan, balance dampers came to mind. I bought an 85 with 50,000 miles on it for a song a couple of years ago. Came with maintenance records which were impeccable, and entries showing it had been ridden all over the country by the original owner. No records for the most recent couple of years as it had been owned by a college student, who pretty much got on it and rode, and nothing else. Went through quite a list of serviceable parts to bring it up to speed. Finally got around to getting rid of the auto cam chain tensioners, doing so quieted the old beast down significantly, but made it possible to distinguish that there was a pretty significant knock in the lower engine. Based on threads here, I went after the balance dampers on the crank, and voila, it sounds perfect. These are a half dozen small round rubber and plastic bushings that prevent the damper weight from smacking against the crank. They deteriorate with time, and I would imagine that any vintage bike is going to need them serviced sooner or later. I pulled the engine to get at them, although there are several threads here that describe methods for doing the job by loosening the engine mounts and jockeying the engine to get the room. They are right behind the stator, so digging into to change them gives you the opportunity to inspect that area thoroughly. Don't mean to bring you down with this post, but rubber parts are indeed problematic on an old bike. Mine is now running very nicely, put probably 1000 miles on it last summer. I know that doesn't sound like much, but I live in the Upper Peninsula of Michigan, and riding days are few and far between when your preference is 80 degrees. I got on it any day I was inclined, so it was worth the effort. Pleasantly fast bike as well, I might add. Good luck!

Mark
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post #5 of 29 (permalink) Old 01-11-2018, 11:02 AM
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Quote:
Originally Posted by Mark Miron View Post
Welcome! When I saw you mention replacing rubber parts on an old Vulcan, balance dampers came to mind. I bought an 85 with 50,000 miles on it for a song a couple of years ago. Came with maintenance records which were impeccable, and entries showing it had been ridden all over the country by the original owner. No records for the most recent couple of years as it had been owned by a college student, who pretty much got on it and rode, and nothing else. Went through quite a list of serviceable parts to bring it up to speed. Finally got around to getting rid of the auto cam chain tensioners, doing so quieted the old beast down significantly, but made it possible to distinguish that there was a pretty significant knock in the lower engine. Based on threads here, I went after the balance dampers on the crank, and voila, it sounds perfect. These are a half dozen small round rubber and plastic bushings that prevent the damper weight from smacking against the crank. They deteriorate with time, and I would imagine that any vintage bike is going to need them serviced sooner or later. I pulled the engine to get at them, although there are several threads here that describe methods for doing the job by loosening the engine mounts and jockeying the engine to get the room. They are right behind the stator, so digging into to change them gives you the opportunity to inspect that area thoroughly. Don't mean to bring you down with this post, but rubber parts are indeed problematic on an old bike. Mine is now running very nicely, put probably 1000 miles on it last summer. I know that doesn't sound like much, but I live in the Upper Peninsula of Michigan, and riding days are few and far between when your preference is 80 degrees. I got on it any day I was inclined, so it was worth the effort. Pleasantly fast bike as well, I might add. Good luck!

Mark
x2 on this.also,read the Vulcan verses and lube the driveshaft splines

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ONE RATS ASS GIVEN PER POST
Support your local FREEBIRDS MC
1986/5 Vn700/750 Frankenfook cross eyed bitch "Mellisa Fayhe"
I am a BIKER and i'm proud.FREEBIRDS MC CENTRAL NY

lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #6 of 29 (permalink) Old 01-11-2018, 11:06 AM
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Glad to have you join our elite forum.
Nice 750 bike pic.....pls update us....

Originally WilliamTech
Since May 2011
86 VN750 13,700 mi -Stock -Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
Jardine Fwd Controls, Custom Fenders w/Rails
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery, Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !

...have a Vulcan good day !
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post #7 of 29 (permalink) Old 01-11-2018, 01:00 PM
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Welcome aboard my man. 1,100 mile???WOW!! You did great, even after cost of maintenance to bring it up to par. You should still feel good about the overal price.

2000 VN750
Digital voltmeter
Lubed spline (5k)
New tires (5k)
Pick up coils to .20mm
K&N air&oil filters
Relocate R&R
2 wire mod
Iridium plugs (7.2k)
Change oil and filter (8.6k)
Removal of the CA emissions (7.3k)
Cap Reed valves off the engine (7.3k)
Redesign stock seat (8k)
Change Engine Ice (8k)
Install KLR650 bars (8.3k)
Change final drive oil (8.3k)
Install power source & phone mount (8.5k)
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post #8 of 29 (permalink) Old 01-12-2018, 07:28 PM
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Thumbs up

Nice find,welcome.
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post #9 of 29 (permalink) Old 01-27-2018, 07:54 PM Thread Starter
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Got the bike in today and stripped the carbs. Front was really clean but rear had both jets plugged and decel diaphragm disintegrating.
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1989 VN750
Highway blaster

2006 Honda Rebel Diesel
100mpg, low and slow

1982 Mercedes 300D
Modified engine, 4-speed manual
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post #10 of 29 (permalink) Old 02-02-2018, 02:15 AM Thread Starter
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Assembled the carbs, wired in the mosfet, pulled the battery box to repair some rust starting on the bottom, pulled apart the right fork and resealed the gas tank cap.

There is absolutely no wear on the fork spring or bushings so I am satisfied this bike actually has only 1000 miles.
The junction box board was free of corrosion but had a cracked solder joint on the bottom left by the connector. Reflowed that joint and coated the board in sealant.
Part of why it was never ridden may be because the gas tank vent is completely obstructed inside. The owner wouldn't have gotten far before the engine starved of fuel from vacuum lock.
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1989 VN750
Highway blaster

2006 Honda Rebel Diesel
100mpg, low and slow

1982 Mercedes 300D
Modified engine, 4-speed manual
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