Clutch pull

tigerstyletroy

tigerstyletroy

Problem or normal?
Clutch pull is quite firm on my 990 sd

My 200xcw is light and my friends adventure r light

Thanks.
JohnJJr

JohnJJr

My friend rides a ninja 650r and cant even pull my lever all the way back. Stiffer than my previous bikes as well.
jmann

jmann

SD does NOT have a EASY pull.

friend has a BMW 800 - he walked up to my bike when i got it to pull the clutch in and SCREAMED ROFLMAO --- whimp !!!

i don't have a problem with it ....
Linga

Linga

As you will know Pascal's principle underpins all of this stuff - this is where Physics becomes interesting

Basically the lever pressure is primarily determined by the master cylinder piston /clutch cylinder piston diameter ratios.
A small diameter master piston combined with a large diameter slave will provide an easy pull. Unfortunately, that ratio
might also mean that the slave piston doesn't move much and so the plates might not dis-engage. Thus the ratio's and the
throw are "balanced" to provide a reasonable compromise.

I suspect that both the SD's master and slave were chosen on the basis of what was readily available and provided good value
for money. Certainly, the slave could have been much better engineered but was just readily available.

Given the build decisions it is not surprising that the Master and Slave are slightly mismatched resulting in what is considered
a hard pull. This could be fixed if you want to spend money but it is probably not worthwhile.

That's the physics but there is also a possibility that human factors have come into play. It is possible, for example, that
somebody has over-tightened the clutch springs, somebody has replaced the springs with the wrong sort - the "heavy duty" type,
that the fluid is wrong, that the clutch push-rod is bent, that you've had a stroke and the left side of your body is weak
(that's a right sided stroke) or any number of factors ... Compare with somebody else's SD not with other brands.

Good luck.
jmann

jmann

Obviously back the front but was taken in mirror...
MY clutch is soooo hard....

Image
jambox

jambox

Post missing.

SDNerd

SDNerd

I think the only time I pull my SD clutch all the way in is at stop.
I would not call my clutch a hard pull.
Maybe it time for others to change fluids and lube pivot points?
Willh

Willh

Mine is harder than other bikes.

I see it as yet another deterrent to keep the weak/wussy away from the Hooligan!
jmann

jmann

Post missing.

Stupid Luke

Stupid Luke

Try an old Norton or Harley, SD pull is easy
SDNerd

SDNerd

Could be dirty fluid or air in the line. After changing my fluid to the recommended Magura blood, clutch pull is lighter and it engages much earlier so that I don't have to pull it all the way in. I think clutch engagement was fixed by getting the air out of the line. It's much lighter than a BMW K1200r. My friend upgraded from Ninja 650 to K1200r and thought his clutch was broken because it was so hard to pull. I tried it as well, and it is heavier than the SD.
stalker

stalker

Post missing.

Ducati Pete

Ducati Pete

Limp wristed folk need only to mince down to their local HM Quickshifter retailer and half their problems will be solved.
TLS_Russ

TLS_Russ

Post missing.

Linga

Linga

Post missing.

TLS_Russ

TLS_Russ

Post missing.

rocketchick

rocketchick

Never noticed the clutch on mine so it must be ok.....

I would clean and grease the lever pivot and check the angle you have your levers set, having the lever too high will cause wrist pump,
If that dont help check your clutch pushrod is not bent or clogged up with chain lube and road cack
rocketchick

rocketchick

Post missing.

MADDOG53

MADDOG53

I`ll have some....... no difference at all apart from slightly increasing the fluid capacity of the system
jmann

jmann

Post missing.

SDNerd

SDNerd

Guess we don't have to worry about offending you RocketChick.

Got one for ya. I know a guy, who back in th 70's /80's lived with 2 gals. Some young smart ass guy asked the gals hows that working out and whats that all about.

One of the gals piped up with out missing a beat, "She's right handed, I am left handed". (pun intended)
jmann

jmann

TLS_Russ

TLS_Russ

Post missing.