Knocking - Page 2 - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Engine / Exhaust / Cooling
\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
engine or exhaust, discuss it here!

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post #11 of 25 (permalink) Old 07-17-2019, 10:32 AM
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Quote:
Originally Posted by Chris Allunario View Post
What would cause a ticking sound? Mine has one at idle while cold but it's not terribly pronounced
Cam chain. The bike came with ACCT's (Automatic Cam Chain Tensioners) but they don't really work as well as they were supposedly designed to. Many here switch to manual adjustesrs (MCCT)
A slight ticking on a cold engine is fairly common and not something to be overly concerned about. A loud ticking when the bikes warm would be.

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post #12 of 25 (permalink) Old 07-19-2019, 06:23 PM
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That is definitely a rod knock. No real way to fix it without splitting the cases. I would sell it as a parts bike, or look for another engine. Ticking is usually caused by the valve lifters or a minor exhaust leak. The Vulcan has hydraulic valves, which are both good and bad. Good because they never need adjusting. Bad because they can become plugged up (especially when the oil is not changed often enough) and not pump up properly, allowing too much valve lash. You might be able to clean them by putting some kind of solvent like Seafoam in the oil.

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post #13 of 25 (permalink) Old 07-22-2019, 11:49 PM
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Might not be rod bearings. Could be balancer bushings. Is it towards the front bottom left?

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post #14 of 25 (permalink) Old 07-23-2019, 10:13 AM
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Might not be rod bearings. Could be balancer bushings. Is it towards the front bottom left?

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Good point Doc. If you touch the case where the damper is, you may feel the knock there.

Have never heard damper knock myself to know, but it does happen.

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post #15 of 25 (permalink) Old 03-11-2020, 09:10 AM Thread Starter
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Update : going to akron Saturday morning to hopefully pick up a running motor.. then im gonna tear apart the one thats on the bike
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post #16 of 25 (permalink) Old 03-11-2020, 02:19 PM
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It never fails to amaze me just how much work and money people are willing to put into these bikes. I have put nearly 200,000 miles on them, and love the way they ride. I also love the fact that they are carbureted and do not have a computer. But I do not like how mechanically complicated the engine is. There is a LOT to go wrong. They are wonderful when everything is working properly. But when they have serious internal issues that would require serious engine teardown to fix, I just don't see it. Back in 2002, a Kawasaki service manager told me "the 750 was not designed to be worked on" and he was pretty much right. Kawasaki went to extremes to make this engine as complicated as possible. That also means there are a lot more mistakes that could be made on the assembly line. My 2002 was destroyed by a broken cam chain. It was not the first. I've also had 2 other motorcycle engines destroyed by broken cam chains. But they only had one chain. The Vulcan had FOUR. If my current bike develops any serious engine problems, it goes to the scrapyard. These bikes have almost no monetary value, and they are reaching the age where they are starting to have serious problems. If you go to all the work and expense of replacing an engine, it could very well have problems as well. This was never a great bike mechanically. I love the way it looks, and I really love the way it rides and handles stock. But it is not the only good bike out there. There are a lot of older bikes far more worthy of putting work and money into than the Vulcan 750. I don't understand why so many people seem to have such an irrational love affair with this bike, even those who have never ridden one. I have bought two of them brand new, but even I am beginning to see the end in sight for them.

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1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
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post #17 of 25 (permalink) Old 03-11-2020, 03:11 PM
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Quote:
Originally Posted by VN750Rider/Jerry View Post
It never fails to amaze me just how much work and money people are willing to put into these bikes. I have put nearly 200,000 miles on them, and love the way they ride. I also love the fact that they are carbureted and do not have a computer. But I do not like how mechanically complicated the engine is. There is a LOT to go wrong. They are wonderful when everything is working properly. But when they have serious internal issues that would require serious engine teardown to fix, I just don't see it. Back in 2002, a Kawasaki service manager told me "the 750 was not designed to be worked on" and he was pretty much right. Kawasaki went to extremes to make this engine as complicated as possible. That also means there are a lot more mistakes that could be made on the assembly line. My 2002 was destroyed by a broken cam chain. It was not the first. I've also had 2 other motorcycle engines destroyed by broken cam chains. But they only had one chain. The Vulcan had FOUR. If my current bike develops any serious engine problems, it goes to the scrapyard. These bikes have almost no monetary value, and they are reaching the age where they are starting to have serious problems. If you go to all the work and expense of replacing an engine, it could very well have problems as well. This was never a great bike mechanically. I love the way it looks, and I really love the way it rides and handles stock. But it is not the only good bike out there. There are a lot of older bikes far more worthy of putting work and money into than the Vulcan 750. I don't understand why so many people seem to have such an irrational love affair with this bike, even those who have never ridden one. I have bought two of them brand new, but even I am beginning to see the end in sight for them.
Jerry, With all due respect, because it’s obvious that you have a wealth of knowledge and experience with these bikes, but how can you question the “love affair” with this machine if you yourself has owned 3 of them?

Some people just like the challenge or want a project. If this bike was your primary/only means of transportation then maybe it’s worth a second thought before diving in. But if it’s a hobby then what does it matter? If I add what I paid for the bike and the necessary costs I paid to fix it I’m still under $3G. That of course isn’t counting any accessories or things I chose to update, but I’d probably do that to any bike so all in all it’s not that crazy IMO. Especially after walking the showroom and seeing bikes well over $20G. Is the engine on this bike complicated? From what I read yes it is, but there may be some pride in someone saying “if I can fix this bike I can fix any bike”. You just never know what someone is thinking.
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post #18 of 25 (permalink) Old 03-11-2020, 04:11 PM
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It's kind of a bummer to see you crap on these bikes so much, Jerry.

The massive wall-of-text posts are starting to get a little tiring, as well. You've got a wealth of knowledge on these bikes, and I respect that, but sometimes it seems like you just start typing without much regard for the actual question at hand and wind up way way off on a tangent
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post #19 of 25 (permalink) Old 03-11-2020, 06:10 PM
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^This.

By the way, I had no problems with my bike other than POOGS, which was a rare event. Hot start issues disappeared after installing an AGM battery. Never relocated my R/R either.
Keep in mind how old this model is now. Find me another 30 year old motorcycle that doesn’t have an issue now and then.

Also this is a forum for those that do like these motorcycles. It is getting tiring reading your long winded opinions, over and over again, about the bike Jerry.
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post #20 of 25 (permalink) Old 03-11-2020, 09:08 PM
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Quote:
Originally Posted by ubertalldude View Post
It's kind of a bummer to see you crap on these bikes so much, Jerry.

The massive wall-of-text posts are starting to get a little tiring, as well. You've got a wealth of knowledge on these bikes, and I respect that, but sometimes it seems like you just start typing without much regard for the actual question at hand and wind up way way off on a tangent
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^This.

By the way, I had no problems with my bike other than POOGS, which was a rare event. Hot start issues disappeared after installing an AGM battery. Never relocated my R/R either.
Keep in mind how old this model is now. Find me another 30 year old motorcycle that doesn’t have an issue now and then.

Also this is a forum for those that do like these motorcycles. It is getting tiring reading your long winded opinions, over and over again, about the bike Jerry.
Any one with a good memory can read something and regurgitate it and make it sound like they said it and make people think it happened to them... But to do it properly, you can't have any discretions that people who have done it may see through and realize that it is just regurgitation... And I'm getting tired of calling him out...

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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

Last edited by OleDirtyDoc; 03-11-2020 at 10:07 PM.
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