engine rattles - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 15 (permalink) Old 11-01-2011, 01:38 PM Thread Starter
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engine rattles

Got a little problem with my 2005 Vulcan when I'm on the road everytime I stop I heard a rattle sound from the engine, it does it every once in a while I had my bike for 5 months now and the previous owner use to take care of it real good before takin it to the shop I will like to know if anybody had the same problem. Thank you any suggestions are helpful! Thanks again.
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post #2 of 15 (permalink) Old 11-01-2011, 02:47 PM
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my first thought is one of the MCCT' s may not be functioning 100% of the time.
I expect one of the experts will offer thoughts shortly.

'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
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 #3 of 15 (permalink) Old 11-01-2011, 03:27 PM
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Not enough info.

Is the bike in neutral?
Idling?
Does it go away when you give it gas?

Might be pinging from bad gas, gear noise, etc...

Can you tell more specifically where it's coming from?

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post #4 of 15 (permalink) Old 11-01-2011, 03:38 PM
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I meant ACCT's
sorry

'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
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 #5 of 15 (permalink) Old 11-01-2011, 04:16 PM
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Quote:
Originally Posted by izzyrocks73 View Post
Got a little problem with my 2005 Vulcan when I'm on the road everytime I stop I heard a rattle sound from the engine, it does it every once in a while I had my bike for 5 months now and the previous owner use to take care of it real good before takin it to the shop I will like to know if anybody had the same problem. Thank you any suggestions are helpful! Thanks again.
Check the heat shields on the exhaust pipes. When the rivets loosen up you will start to hear a rattling sound.

JM2001

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2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
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Pic up coil mod done
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post #6 of 15 (permalink) Old 11-01-2011, 07:23 PM
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Wires inside the headlight bucket can bang around at certain rpm's too.

Jon

93VN750, under re-construction
vn750.com Member # 828

Rick's Stator and R/R
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post #7 of 15 (permalink) Old 11-01-2011, 10:13 PM Thread Starter
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When its in neutral and also when I change gears,I'm not sure but I think is from the left side of the engine.
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post #8 of 15 (permalink) Old 11-02-2011, 08:35 PM
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look for this part on the front of the back cylinder.


hold a screwdriver tip to it and put your ear to the screwdriver handle and see if you hear it pretty well. if so its an easy and cheap fix!

1986 vn 750 aka "Huck Farley"
42,000 miles
Rick's stator and rr
Tuxedo stator cover mod
pickup coil mod
dampers replaced
agm m/f battery
Harley sportster exhaust, degoated
Hid conversion
splines lubed
custom "vn750.com" grill cover
NGK Iridium spark plugs


acct to mcct mod https://www.vn750.com/forum/showthread.php?t=17917

rekeying locks, https://www.vn750.com/forum/showthread.php?t=7309

stator replacement walkthrough, https://www.vn750.com/forum/showthread.php?t=11369
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post #9 of 15 (permalink) Old 11-02-2011, 08:37 PM
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yours might look a bit different as mine has been converted to a manual, you might not have the nuts on yours and just a cap screw.

1986 vn 750 aka "Huck Farley"
42,000 miles
Rick's stator and rr
Tuxedo stator cover mod
pickup coil mod
dampers replaced
agm m/f battery
Harley sportster exhaust, degoated
Hid conversion
splines lubed
custom "vn750.com" grill cover
NGK Iridium spark plugs


acct to mcct mod https://www.vn750.com/forum/showthread.php?t=17917

rekeying locks, https://www.vn750.com/forum/showthread.php?t=7309

stator replacement walkthrough, https://www.vn750.com/forum/showthread.php?t=11369
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post #10 of 15 (permalink) Old 11-02-2011, 09:46 PM
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If by chance the noise is coming from your ACCT you can remove the cap bolt, use a small flat blade screw driver and turn it to the left just about a half round and let it spin itself back (spring loaded) to loosen it up and turn it just a little to the right to cause tension on the timing chain. The spring will get weak over time not letting it add/adjust tension as needed. I took my ACCT off and stretched the spring and it quieten my engine rattle down.

Could be something else. But the ACCT is a common place for the rattle.

Last edited by Chuck A.; 11-02-2011 at 09:49 PM.
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