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post #1 of 8 (permalink) Old 10-06-2007, 04:10 PM Thread Starter
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Need motor in Western Pa.

Hey Folks, first post...looking for a motor to replace the one in my father's '86 vn750. Any idea where I might find one close to western Pa? He's currently experiencing some connecting rod noise, stator problems. Thinking a swap might be simpler and easier on the wallet. Any info would be greatly appreciated. Thanks. ...Rog.
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post #2 of 8 (permalink) Old 10-06-2007, 06:20 PM
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Check eBay. Last week someone was selling a motor in Kittaning (I think it finally went for around $500, including shipping); and I think there may be one on there now. If you search on "Vulcan 750 motor" or "engine", you'll see "related terms" such as "vn750," "vn 750", "Kawasaki VUlcan 750." Check all of 'em, 'cause postings don't always overlap.

Good luck!

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post #3 of 8 (permalink) Old 10-06-2007, 11:32 PM
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Before you blame the con rod, check out the Automatic Cam Chain Adjustors. I thought I had spun a con rod or main bearing in my engine as the noise was similar to that problem but it turned out to be the cam chain tensioners. Of course I discovered this AFTER I had completely torn the engine down. You may also want to check the left side balancer as it too can make a noise similar to a bearing problem. As long as the oil level was kept up and changed regularly, there is no reason for a bearing failure in these bikes. The bearings are very well made and are pretty resiliant to failure unless the oil is neglected or it has been in a crash. It will save you some $$ to check these things out as replacement engines usually go for over $600 and even then they usually don't come with electrical parts or have other problems from a crash that require a case split like a bent shift shaft or something similar.
If it is a con rod, there are undersize bearing available after a machine shop grinds the crank. Our engines are complex but not too hard to work on if you have the patience and the right tools.

Jim W
93 VN 750 "Ursula"
Moved R/R 08Sep06
R/R rewire 17Feb07
New R/R, Installed 14Jun08
New Stator installed 10 Jun08
Maintenance Free Battery 12Jan08
21480 Miles
VROC #8542
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post #4 of 8 (permalink) Old 10-06-2007, 11:40 PM
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I second that...

Check the ACCT's for noise. My bro, who is a good mechanic, guessed the same thing on my VN - bad crank - when it was just a weak ACCT. Cost to fix? $0 so far. Just remove the small cap screw on the end of the ACCT, stick a small screwdriver in (I recommend with the engine running) and slowly tighten until the rattle can sound quiets down.
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post #5 of 8 (permalink) Old 10-07-2007, 12:02 AM
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Just note that you have to turn the inner screw to the left to tighten it against the chains

2001 VN750
Vista Cruise Control
V-Force shield
Kawasaki Saddlebag supports
Fixed trunk hinge
Clear Alternatives LED tail light
Knifemaker style floorboards
Knifemaker style dash
Avon Venom X 110/90 Front
Avon Venom X 170/80 Rear
Big Crank AGM battery
25,100 miles as of 04/20/2010
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post #6 of 8 (permalink) Old 10-07-2007, 09:38 AM Thread Starter
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Thanks very much...I'll pass this info over to him. He really likes the bike but was told was told by the local stealership that it was a bad crank bearing and was gonna cost him a lot to fix. We'll try out tightening the ACCT. Thank you. ...Rog.
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post #7 of 8 (permalink) Old 10-07-2007, 10:45 PM
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Before I knew for sure the shop knew what they were talking about, I'd ask them if they were at all familiar with the 750 Vulcan.

I may have a line on an older Vulcan (not sure of the year yet) that's been sitting for awhile. If/when I find some info on it, I'll let ya know. Hopefully I'll see the guy tomorrow at work.

I'm about 20 or miles north of Pgh, where about's are you??

AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC

"When life throws you curves,
Aim for the apex."

Author Unknown
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post #8 of 8 (permalink) Old 10-07-2007, 11:34 PM
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I thought that I had a bad lifter, turned out to be the ACCT.

02 honda sabre 1100
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