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post #1 of 30 (permalink) Old 12-03-2011, 11:48 PM Thread Starter
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grabbing clutch

Anyone have trouble with your clutch being grabby instead of smooth in the friction zone. Mine seems to be more and more that way lately making it hard to do smooth starts. it also makes it interesting when maneuvering at slow speeds. I am in Atlanta so the weather is not amazingly cold here - I pretty much ride in the night/evenings commuting to and from work so its in the mid 30's -
I am running GTX 20/50 which has been in the bike for about a year perhaps. Today I went out to work on some slow speed bike handling skills and it about drove me nuts. It feels like it wants to be in or out with no middle ground.

That can't be my bike - it aint movin'
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post #2 of 30 (permalink) Old 12-04-2011, 08:46 AM
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I'm here in Bama so about the same on the temps. My bike was doing the same thing until I went to Castrol 10/40. Never tried the 20/50. I would think that may be a little thick for temps this time of year. I tried the full synthetic oils and it made mine extremely rough on take off.
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post #3 of 30 (permalink) Old 12-04-2011, 01:54 PM
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20w50 is not really a good choice for temps under 80. I'd switch to a 10w40 and see if it helps... If not, you might need a new clutch, as it might be a warped or worn out plate(s).

Do make sure you clutch cable is adjusted properly of course....

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post #4 of 30 (permalink) Old 12-04-2011, 05:00 PM
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Mine does it too in the cooler weather. X2 on the thickness of the oil and quite possibly the brand. Thinner oil is better in the cooler temps for bikes and cars. With mine I just let it warm up and work the clutch lever a few times. Not really sure if that makes a difference but it stops that ridiculous behavior after a few minutes of riding. I'm planning on trying Castrol in it next oil change. Good luck.

Dave

Mods:
Jetted, shaved & coastered
Home made under-tank single filter
Converted ACCT's to manual (thanks wib714)
Dual vac lines on petcock (my cure for ticking)
LED tail/plate lights
Relocated helmet lock to license plate

Added stuff:
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post #5 of 30 (permalink) Old 12-04-2011, 08:02 PM
..have a vulcan good day!
 
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Quote:
With mine I just let it warm up and work the clutch lever a few times.
x2 ... I use Synthetic 15-40 Delvac (Mobil 1) , start bike (No Choke), warm up 60 seconds, work the clutch lever 2-3 times.. never a clutch issue / no grabbing / all is normal.

Suggest 10-40 or 15-40 Oil... best solution to avoid clutch grabbing.
WilliamTech

'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 #6 of 30 (permalink) Old 12-04-2011, 11:28 PM Thread Starter
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Thanks
I will do an oil change this week and see if that doesn't correct the problem
I was thinking of using royal Purple max cycle 10/40
Also will check cable adjustment - are there guidelines or is it just till it feels right?

That can't be my bike - it aint movin'
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post #7 of 30 (permalink) Old 12-04-2011, 11:40 PM
..have a vulcan good day!
 
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Quote:
Originally Posted by trekbiker View Post
Thanks
I will do an oil change this week and see if that doesn't correct the problem
I was thinking of using royal Purple max cycle 10/40
Also will check cable adjustment - are there guidelines or is it just till it feels right?
Basically, a nickel ($.05) thickness of free play at lever.
Search threads for clutch lever adjustment.
WilliamTech

'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 #8 of 30 (permalink) Old 12-05-2011, 12:07 AM
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I just did an oil change with some "SuperTech" 10W-40 and this went away, even during the first couple of take-offs.

The oil isn't exactly anything special, it's just a basic non-energy conserving oil.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #9 of 30 (permalink) Old 12-05-2011, 02:16 AM
..have a vulcan good day!
 
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Quote:
Originally Posted by thtanner View Post
I just did an oil change with some "SuperTech" 10W-40 and this went away, even during the first couple of take-offs.

The oil isn't exactly anything special, it's just a basic non-energy conserving oil.
thTanner


http://motorcycleinfo.calsci.com/Oils1.html

The above link is a lengthy long (partial) education of Oils.
MC oils info starts one-half way through the article. After much research and reading this article, my choice of Oil is Synthetic Delvac 15-40.
Spend the time on researching quality oil for MC's... your bike will benefit greatly.
Also, brand of oil filter choice is also crucial.
Good Luck
WilliamTech

'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 #10 of 30 (permalink) Old 12-05-2011, 12:32 PM
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Hey...let's turn this into an oil thead...

I use Rotella T NON synthetic oil. Buy it in the big jug at Wal-Mart.

Works great....and I'm not alone with that opinion. You don't need special/expensive "motorcycle" oil.

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