Side Case Bolt Torque Spec

[Sentinel]

Bad news. While the clutch replacement went perfect with no striped bolts or screws, and everything is resealed correctly with no leaks or anything, the clutch pull was pretty much unmanageable, and my clutch cable has stretched at least an inch or more because the force of the pull is so great. This just didn't seem right at all of course, so I went and checked the manufacturer's part listing and found that the part I was sold as being the correct springs for my bike are incorrect. As I looked around every other reseller I found also had the incorrect part number listed accept for one place. The springs I was sold are the EBC "CSK6", the correct part listed for my bike from EBC is "CSK158", so now I've ordered the CSK158 springs and I'm going to have to do the job all over again!

 

[Sentinel]

UPDATE:

Spoke to the manager of the motorcycle division at EBC America and he found out that the CSK158 is indeed a new part assignment for my bike, and has replaced the CSK6 for it. Of course the problem is that only one of the many online resellers I checked are aware of this.

My issue with the CSK6 springs I have in there now is that the amount of lever pressure required is far too much to be usable. Now I wonder if I'm still going to find that to be the case even with this updated part? He mentioned that some users have actually done a staggered install in that they installed every other spring using the stiffer EBC part, and every other one the stock standard OEM part to make the tension more manageable, but suggested I install the full new EBC spring set before trying that. I sure hope I don't have to go through this install all over again!


Here's the specs he gave me on the parts. I don't know much about springs, but comparing the specs I wonder how much different the tension between the two may actually be?

CSK6 Specs (Discontinued Part Assignment):
Length = 41.3 mm
Outer diameter = 19.6 mm
Inner diameter = 14.1
Number of turns = 5

CSK158 Specs (New Replacement Part Assignment):
Length = 39.8
Outer diameter = 19.84
Inner diameter = 14.97
Number of turns = 5


Difference from CSK6 to CSK158:
Length -1.5 mm
Outer diameter = +.24 mm
Inner diameter = +.87


Does anyone here have any ideas or suggestions on any of this?

 

[Gorminrider]

Any difference in the thicknesses of the spring "wire" ? The wire thickness itself is the first consideration making a spring, I would think. But there's plenty of stuff on the internet....
Those "differing" specs do not seem important enough differences 1)if they fit and 2)if you torque your clutch bolts to spec.

I would compare these to the original springs.

 

[Sentinel]

Well, the new supposedly "correct" springs arrived today, and instead of the package stating that they are "10%" stronger than standard, this one states that they are "15%" stronger than standard, so in other words I'm sending them back for a refund and will be installing a new set of stock standard ones. EBC has really dropped the ball on these. And yes, some accurate and important info from EBC including actually spring strength would have been nice.

All in all a very bad experience with this company.

 

[tkent02]

I'm sending them back for a refund and will be installing a new set of stock standard ones. .

The Suzuki ones are the way to go anyway.

 

[Chris G]

I recently thought about using EBC spring, but went with a standard set up, it's not like my 850 has a mater and slave cylinder to all the work, just a plain old cable, any increase in force needed to pull the lever would be quite noticeable, and hard work on a long ride.

 

[Sentinel]

I recently thought about using EBC spring, but went with a standard set up, it's not like my 850 has a mater and slave cylinder to all the work, just a plain old cable, any increase in force needed to pull the lever would be quite noticeable, and hard work on a long ride.

The amount of force required with what's in there right now takes all my strength to pull and is making my riding not only miserable but dangerous out on the road.

My clutch cable continues to stretch putting it out of adjustment after just a short ride. I wouldn't be surprised if it hasn't stretched up to around 2 full inches at this point, and will likely snap before long. I hope I receive the new OEM springs by the end of the week so that I can get the job done by the end of this coming weekend.

As soon as this fiasco is over I'm going to clean and do a bit of a rebuild and refurbishing of the carbs, sync them, and then it's going to be full brakes, including new rotor if I can get one, wheel-bearings, and tires. Then she should be good to go for quite a while without any major service.

 

[Grimly]

I recently thought about using EBC spring, but went with a standard set up, it's not like my 850 has a mater and slave cylinder to all the work, just a plain old cable, any increase in force needed to pull the lever would be quite noticeable, and hard work on a long ride.

I fully agree. It was de rigeur to fit uprated springs back when, when everybody thought they needed them. Well, actually, the standard springs were sometimes over-priced and EBC (and others) did them much cheaper. Staggering the standard and uprated springs does work, but it really all depends on what the fault was in the first place. If the standard springs simply got tired, a new set of standard or a set of staggered ones will do the job. A full set of uprated ones is usually unnecessary unless the power output has been increased, or there's a known clutch-slip tendency of the design.

 

[Sentinel]

Got the new OEM springs in there now and all is well. I do wish they were a bit stiffer, but they work well enough.

I also had to install a new clutch cable due to the excessive stretching the EBC springs caused.

I ended up torquing the side-case bolts to about 8 lbs. f. both times and it worked perfectly; no stripping and no leaks. I also used blue threadlocker on the bolts both times.

 

[tkent02]

Got the new OEM springs in there now and all is well. I do wish they were a bit stiffer, but they work well enough.

Why, is it slipping?