Barnette Clutch

[dna9656]

I'm looking for some education here: What's so whoop-di-do about a Barnett Clutch?

[RedRider]

It works!!

It lasts longer than a set of tires.

 

RR

[dna9656]

It works!!

It lasts longer than a set of tires.

 

RR

 

Well, I haven't worn a stock one out yet, the bikes I buy are old, the clutch is really easy to re-line/replace (what ever the term is) so I just do it as a matter of routine, like replacing the brake pads or over hauling the calipers. Just some thing I do to used equipment that hasn't been used in (probably) years....isn't there more "whoop-di-do" than "it works and last longer than tires" I mean I haven't worn a set of tires out yet either. I got 25,000 miles on my Michelin Commander 2s.... and they still look great....

Signed

"Wondering and confused"

Just jokin!

Doug

[bongobobny]

The main thing is it is more heavy duty than the stock setup. You will find it feels more positive and firmer. The main reason is if you tow a trailer a lot two up, or if you have a spirited wrist and want more bite when you launch...

[Flyinfool]

The stock Clutch springs will die of old age and allow the clutch to slip. The slip will first be noticed when you snap to full throttle in 5th while traveling around 50-60 mph. The RPM will come up faster than the speed.

Your MKI's have a pressure plate with 6 coil springs. The springs can and will get weak. The Barnett springs are of much better quality and will not lose their temper over time like the stock springs. There have probably been a lot of clutches replaced over the years that only needed a new set of springs. Or would have lasted a lot longer if the springs had been replaced sooner. If you can feel the clutch slipping at full throttle in 5th gear, then it is like at least creeping all the time wearing its self out.

 

The 1st gen MKIs have the 6 coil springs like the Barnett, The 1st gen MK II and the 2nd gens all use a diaphragm spring that has the same issue of getting soft over time. The MK IIs and the 2nd gens can be converted to the Barnett style springs or just put in a stronger modern diaphragm spring. Regardless of which system you have, Replace the springs with the available stronger springs, the stronger springs just work better over time and do not require a lot more effort on the clutch lever.

 

When you go in there to check out the clutch,, new friction plates measure 3mm (.1181 inch) thick and the wear limit is 2.8mm (.1102 inch) thick.

[dna9656]

the stock clutch springs will die of old age and allow the clutch to slip. The slip will first be noticed when you snap to full throttle in 5th while traveling around 50-60 mph. The rpm will come up faster than the speed.

Your mki's have a pressure plate with 6 coil springs. The springs can and will get weak. The barnett springs are of much better quality and will not lose their temper over time like the stock springs. There have probably been a lot of clutches replaced over the years that only needed a new set of springs. Or would have lasted a lot longer if the springs had been replaced sooner. If you can feel the clutch slipping at full throttle in 5th gear, then it is like at least creeping all the time wearing its self out.

 

The 1st gen mkis have the 6 coil springs like the barnett, the 1st gen mk ii and the 2nd gens all use a diaphragm spring that has the same issue of getting soft over time. The mk iis and the 2nd gens can be converted to the barnett style springs or just put in a stronger modern diaphragm spring. Regardless of which system you have, replace the springs with the available stronger springs, the stronger springs just work better over time and do not require a lot more effort on the clutch lever.

 

When you go in there to check out the clutch,, new friction plates measure 3mm (.1181 inch) thick and the wear limit is 2.8mm (.1102 inch) thick.

 

thanks jeff!!!

[dna9656]

the stock clutch springs will die of old age and allow the clutch to slip. The slip will first be noticed when you snap to full throttle in 5th while traveling around 50-60 mph. The rpm will come up faster than the speed.

Your mki's have a pressure plate with 6 coil springs. The springs can and will get weak. The barnett springs are of much better quality and will not lose their temper over time like the stock springs. There have probably been a lot of clutches replaced over the years that only needed a new set of springs. Or would have lasted a lot longer if the springs had been replaced sooner. If you can feel the clutch slipping at full throttle in 5th gear, then it is like at least creeping all the time wearing its self out.

 

The 1st gen mkis have the 6 coil springs like the barnett, the 1st gen mk ii and the 2nd gens all use a diaphragm spring that has the same issue of getting soft over time. The mk iis and the 2nd gens can be converted to the barnett style springs or just put in a stronger modern diaphragm spring. Regardless of which system you have, replace the springs with the available stronger springs, the stronger springs just work better over time and do not require a lot more effort on the clutch lever.

 

When you go in there to check out the clutch,, new friction plates measure 3mm (.1181 inch) thick and the wear limit is 2.8mm (.1102 inch) thick.

 

thanks jeff!!!

[Flyinfool]

Your welcome,,,,,,,twice......