Got my bike finished! - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 13 (permalink) Old 04-04-2018, 02:03 PM Thread Starter
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Got my bike finished!

All I gotta do now is go pick it up! However the shop said there was a top end rattle that could cost 2500 if I went for it.. the bike only has 75k miles. Is this the ACCT I'm hearing about or something more sinister? I don't have it on me yet but tomorrow I'll let you guys know. She runs and rides good apparently.
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post #2 of 13 (permalink) Old 04-04-2018, 02:57 PM
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75k miles is pretty high, but not bad in any way. $2500 for "top end rattle"? C'mon, gotta be a little more convincing than that, service writer. Anyhow, I reckon these bikes make a ton of noise. If you're earshaved you're more likely to hear the flat-tappet cams, chains, and valves all making noise, which could be called a "top end rattle" but is presumably pretty standard, at least in my experience.

Even before I did the earshave, if I spread my legs while riding the bike I could hear the engine making a lot of tappy clicky noises. After the earshave I hear it all the time, sometimes louder than others. It's been this way for nearly a year now since I did the earshave, now I just don't pay attention to it for sake of my own sanity.
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post #3 of 13 (permalink) Old 04-04-2018, 03:04 PM
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look up the Grambo trick

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post #4 of 13 (permalink) Old 04-04-2018, 03:25 PM Thread Starter
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Yeah when he said they would need to split the cases I was like "Let's not do that and I'll worry about it."

I'll do the Grambo trick tomorrow. She is rideable though now, and only 1200 total in the hole!

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post #5 of 13 (permalink) Old 04-04-2018, 07:07 PM
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Well if the Grambo trick doesn't work you can make a set of Manual Tensioners to see if that works.

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post #6 of 13 (permalink) Old 04-05-2018, 04:14 PM Thread Starter
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Ok! So apparently the Vulcan's lifters are the cause of the knock noise. I read that could sort itself out, since it hasn't run or had oil in it for years. Thoughts?

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post #7 of 13 (permalink) Old 04-05-2018, 04:54 PM
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It could for the reason you said, but unless it's a loud knocking it's likely not to be a big issue. I mean, you could go hunting for it and make the bike "perfect" and quiet, or you could ride it. Did they change the oil? If not, put some good oil in there, preferably one with good zinc content, that's good for keeping cams happy.

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post #8 of 13 (permalink) Old 04-07-2018, 12:09 AM Thread Starter
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Rode the bike home today. The knock is pretty loud and goes away at 3k RPM. I suspect the ACCT but that could be just me being hopeful. I doubt it's the lifters or anything but it's hard to tell right now..

On another note. My forks have a small ring of oil on each one, apparently that's a leak. Anyway to fix that for inspection?

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post #9 of 13 (permalink) Old 04-07-2018, 07:48 PM
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Originally Posted by dunthyon View Post
Rode the bike home today. The knock is pretty loud and goes away at 3k RPM. I suspect the ACCT but that could be just me being hopeful. I doubt it's the lifters or anything but it's hard to tell right now..

On another note. My forks have a small ring of oil on each one, apparently that's a leak. Anyway to fix that for inspection?
Touch the ends of the ACCTs, you should feel it knocking there the most if that's what it is.

Use a rag to wipe the oil off? Need those fork seals. Does the front feel springy?

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post #10 of 13 (permalink) Old 04-08-2018, 05:27 PM Thread Starter
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The front feels a little bouncy but I can't be too sure. One thing I noticed today was the ACCT didn't spring back at all when I turned it CW for the Grambo trick.

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