Clutch or ? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 05-16-2015, 06:32 PM Thread Starter
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Clutch or ?

I wish I could say I knew more than I do, but I don't. Went to take the bike out and the front brakes were acting up again. They were grabbing and I couldn't move it. I bleed them and they softened up. So, I'll count that as an anomaly. The speedometer is now working do to the cable not being seated properly.

The main reason I'm posting is I had been experiencing an issue with the bike clutch engaging. I would pull the clutch all the way in and shift. The bike would get off to a very slow craw then engage into first gear. I performed adjustments. The top adjustment did nothing. (i understand this is the fine adjustment) I adjusted the lower and now it engages at the very last second. it jumps. More adjustments are in order, I"m guessing.

So here's the rub. after riding the bike for 10 minutes it seemed to be running ok minus clutch issues but the more I rode the more it started hesitating. I was on the open road now bringing up rpms to 5 or 6 then shifting. I have the feeling the clutch isn't working properly almost as if it's preventing the bike from running. In addition, when I parked it white smoke is coming out of the right side exhaust. Could my clutch be screwed up as the person who tried to get it running before I bought it could have rode the clutch to over power the locking brakes.

Had a nice ride though at first. Any ideas would be greatly appreciated.

2008 Vulcan 900 Classic LT
HID lighting 35 Watt White
Chrome Slotted oval Mirrors
Chilhowee Tank Bra
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Vance & Hines Twin Slash staggered
EJK Gen 3 Electronic Jet Kit

1991 Vulcan 750 226 miles
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post #2 of 11 (permalink) Old 05-16-2015, 06:42 PM
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sounds like adjustments to me.

#1. make sure the release lever (near bottom of engine) is properly set. the split in the lever should line up pretty close to the line cast into the casing where the shaft goes in. (consult manual for exact procedure here)

#2, with top adjustment in center of range, adjust bottom until you have only a couple of mm's of free play at the lever (measure the gap between lever and perch).

#3, fine tune that clearance with top adjustment.


if that don't work, may have more clutch issues to deal with. but that's should get you in the right direction.

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post #3 of 11 (permalink) Old 05-16-2015, 07:05 PM Thread Starter
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Quote:
Originally Posted by michiganteddybear View Post
sounds like adjustments to me.

#1. make sure the release lever (near bottom of engine) is properly set. the split in the lever should line up pretty close to the line cast into the casing where the shaft goes in. (consult manual for exact procedure here)

#2, with top adjustment in center of range, adjust bottom until you have only a couple of mm's of free play at the lever (measure the gap between lever and perch).

#3, fine tune that clearance with top adjustment.


if that don't work, may have more clutch issues to deal with. but that's should get you in the right direction.
Thanks for the information. The clutch has no play in it what so ever. it's a medium taught pull all the way through.

2008 Vulcan 900 Classic LT
HID lighting 35 Watt White
Chrome Slotted oval Mirrors
Chilhowee Tank Bra
Barons Big Air Kit
Vance & Hines Twin Slash staggered
EJK Gen 3 Electronic Jet Kit

1991 Vulcan 750 226 miles
Spiegler brake lines
rebuilt calipers, master brake cylinder
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post #4 of 11 (permalink) Old 05-16-2015, 07:55 PM
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did you check the clutch plates and basket?
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post #5 of 11 (permalink) Old 05-16-2015, 08:13 PM
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one thing to remember, the actual engagement range of our clutch is actually very short.. mine is less than the last 1/4 of travel from free to full engage.

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post #6 of 11 (permalink) Old 05-16-2015, 09:15 PM Thread Starter
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Quote:
Originally Posted by heaney750 View Post
did you check the clutch plates and basket?
I'm hoping I do not have to but I will next weekend if the adjustment doesn't work. Thank you.

2008 Vulcan 900 Classic LT
HID lighting 35 Watt White
Chrome Slotted oval Mirrors
Chilhowee Tank Bra
Barons Big Air Kit
Vance & Hines Twin Slash staggered
EJK Gen 3 Electronic Jet Kit

1991 Vulcan 750 226 miles
Spiegler brake lines
rebuilt calipers, master brake cylinder
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post #7 of 11 (permalink) Old 05-16-2015, 10:26 PM
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Seems like a mix, adjustment, sticky engagement, and a bit of coffee grinder syndrome. Did it make the coffee grinder noise?

If the bike has been sitting a while, could be some varnish sticking things in the clutch pack and actuating rod.

If you changed oil, ... Anything in the screen?

Was it warmed up good or just acting up on a short test ride?

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post #8 of 11 (permalink) Old 05-16-2015, 11:03 PM Thread Starter
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Quote:
Originally Posted by Spockster View Post
Seems like a mix, adjustment, sticky engagement, and a bit of coffee grinder syndrome. Did it make the coffee grinder noise?

If the bike has been sitting a while, could be some varnish sticking things in the clutch pack and actuating rod.

If you changed oil, ... Anything in the screen?

Was it warmed up good or just acting up on a short test ride?
I changed the oil two weeks ago and it was fine. It was warmed up good before it started acting up. However, this is when I was running it pretty hard and shifting at 5 to 6 grand. No coffee grinder noise. It's hard to figure out what the hell is going on when having multiple problems with the bike. When I was running around the neighborhood in first through third the bike was doing ok. That is minus the problem I'm having with the bike running rich. In fact I may have an issue with the carbs. They were rebuilt or so I was told. I'm trying to fix them with seafoam and premium gas....but that's another issue for another day.

2008 Vulcan 900 Classic LT
HID lighting 35 Watt White
Chrome Slotted oval Mirrors
Chilhowee Tank Bra
Barons Big Air Kit
Vance & Hines Twin Slash staggered
EJK Gen 3 Electronic Jet Kit

1991 Vulcan 750 226 miles
Spiegler brake lines
rebuilt calipers, master brake cylinder

Last edited by Mike DeAngelo; 05-17-2015 at 11:48 AM.
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post #9 of 11 (permalink) Old 05-17-2015, 07:20 AM
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Don't run premium gas.Our bikes run best on low octane gas.
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post #10 of 11 (permalink) Old 05-17-2015, 11:32 AM Thread Starter
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Quote:
Originally Posted by brock nevermore View Post
Don't run premium gas.Our bikes run best on low octane gas.
Did you ever wonder what a horse thinks when it has an inexperienced rider on its back? My bike must hate me. I'll get it sorted out with help no doubt. This 750 reminds me of all the great times minus the problems I had on my 95VN750.

2008 Vulcan 900 Classic LT
HID lighting 35 Watt White
Chrome Slotted oval Mirrors
Chilhowee Tank Bra
Barons Big Air Kit
Vance & Hines Twin Slash staggered
EJK Gen 3 Electronic Jet Kit

1991 Vulcan 750 226 miles
Spiegler brake lines
rebuilt calipers, master brake cylinder
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