Will it hurt!? Opinions please! [Archive] - Kawasaki Motorcycle Forums

Will it hurt!? Opinions please!

08-06-2011, 03:54 PM
I am deciding whether to just buy a whole new clutch kit for my bike. The kit includes Barnett: 5 springs, 6 driven plates, and 1 friction plate(kevlar). I am really just wondering if it would hurt to just replace everything in the clutch just for safety measures since i can tell it is starting to go. For example i don't know how long this clutch has been in this 1981 KZ550 LTD so i figured what the heck, whats it going to hurt. Just let me know if this is ok/a smart idea. Thanks.

08-06-2011, 04:30 PM
Many people have found that aftermarket clutch springs are to hard to squeeze after a while. I'd suggest buying new Kawasaki springs and replace the clutch pack with the ones from Barnett. What brand/type of oil being used? The "Car Oils" contain friction modifiers to meet the EPA mileage standards, unfortunately not compatable with motorcycle starter and engine clutches. Oil is Oil is not the same for a motorcycle....

08-06-2011, 11:30 PM
I am not sure what type of oil is in it right now. I am going to change it. What is the best type of oil to use? I hear shell rotella is good but isn't that a car oil? I would love to know what good oil to use in it is called. So I should buy kawasaki springs and not use the barnett ones?

08-06-2011, 11:36 PM
For oil, read this:

Best Oils To Use In Your Bike (Just My Opinion)

Engine oil : The commercial grade oils are clearly superior to the mass market oils. For the best protection in your bike or car, use Shell Rotella Synthetic, available at Wal-Mart in blue containers . For the best petroleum oil you can buy, get Shell Rotella T, Mobil Delvac 1300, or Chevron Delo 400, available at any auto parts store. On the back of most oil cans is a circular stamp with the certification. Avoid oils that say "energy conserving" in the bottom half of the donut. These oils contain friction modifier additives that could cause clutch slipping over time. The EPA mandated certain gas mileage, so the auto makers turned to the oil manufacturers who came up with friction modifiers of the oil to meet these new standards. All XXw-20 and XXw-30 oils are energy conserving, and should not be used in your motorcycle. Don't buy any oil additives like STP or Slick-50. Here's several listings on all about oil justifying these conclusions.

The Recommended Synthetic Oils :

Shell Rotella Synthetic
5w-40 Delvac 1 Synthetic
5w-40 Mobil-1 SUV/Truck Synthetic
5w-40 AMSOil AMF Synthetic (pricey, but itís your money)
10w-40 Golden Spectro Synthetic
10w-50 Motul 5100 Synthetic
10w-40 Mobil-1 Synthetic
15w-50 Mobil-1 MX4T Synthetic

The best synthetics are: (in no particular order)

Shell Rotella-T Synthetic 5w-40 (blue container, not white), gallon at Wal-Mart.
Mobil Delvac-1 5w-40 (grey container, not black), gallon at Petro stations, gallon at Farm and Fleet.
Mobil-1 SUV 5w-40, qt anywhere.
AMSOil AMF 10w-40 synthetic motorcycle oil. (again, pricey)
Golden Spectro Supreme, (no price).
Motul 5100 Ester, (no price).

Mobil-1 automotive oils all contain small amounts of moly - about 100 to 200 ppm. This can cause clutch slippage in some motorcycles. I've only heard of this being a problem in Honda Shadows.

For temperatures below -40, I strongly recommend either Mobil-1 0w-30 or the Canadian Shell 0w-40 Rotella. At these temperatures, your car is your life. Using cheap or incorrect oil is risking your life.

For temperatures below -55c, -65f, stay home. Really.

The Recommended Petroleum Oils

Chevron Delo 400 15w-40
Delvac 1300 15w-40
Shell Rotella 15w-40

The best petroleum oils are: (in no particular order)

Chevron Delo 400 15w-40 (blue container) gallon at any auto parts store, gallons at Costco.

Mobil Delvac 1300 15w-40 (black container) gallon at any auto parts store, gallons at Sam's Club.

Shell Rotella-T 15w-40 (white container) gallon at Wal-Mart or any auto parts store, gallons at Sam's Club.

Castrol 15w-40 (Green container) gallon at Wal-Mart or any auto parts store, gallons at Samís club.

If you live in another country, you'll have to do a bit of research to decide on an oil. Generally, any oil certified for use in a late model Volks wagon or Mercedes turbo diesel is a good choice. Another good idea is to go to a truck stop and ask the truckers about brands. Rotella is marketed all over the world, but in other countries it's called Rotella or Rimola or Helix Ultra, and the formulation may be a bit different, depending on local climate and preferences. It will likely also be a lot more expensive than it is here.

As for the springs, if you can get replacement Kawasaki springs, use them, as I've read/heard the Barnett's can be tough on the hand.

08-06-2011, 11:44 PM
Wow awesome info! So what the difference between petroleum oil and synthetic oil? I am definitely thinking about getting shell rotella as I hear it is the best. But what's the difference between the white jugs and the blue jugs at wally world? I live in Ny btw so no price change.

08-06-2011, 11:53 PM
Also what is the difference between EBC products and OEM?

08-07-2011, 05:04 AM
Unless you're racing the bike or pushing the weight capacity of the bike stick with a stock clutch. Your hand will get tired of heavier springs and clutch cables don't like it either. Blue versus white, blue is synthetic and white is dino. Synthetic versus dino, Google is your friend, tons of info on the subject. Just don't use oil with the small green EPA symbol on it. EBC, are you now jumping to brakes? EBC makes upper tier brake pads.

08-07-2011, 11:16 AM
Ok. And no I found EBC clutch springs on eBay for like $8. All I can find are springs that say they are 10% stronger than stock ones. Will it be ok using these?

08-07-2011, 01:43 PM
The springs should work it's just a harder pull on the clutch lever. I don't know anything about EBC springs since I always use Barnett clutches when I want a performance clutch. If you're replacing the clutch why not just get a clutch kit versus buying pieces? By the time you pay shipping for piece parts you won't be saving any money.

08-07-2011, 11:40 PM
I think I am going to buy the barnett clutch kit and just use stick springs but use the barnett plates from the kit. If thats a hood idea let me know. If you guys trust barnett plates for my kind of bike let me know. Thanks.

08-08-2011, 12:01 AM
I'm using a Barnett clutch and stock springs in my 1982 Gp1100 with no problems.