Author Topic: Id a barnett clutch  (Read 1381 times)

0 Members and 1 Guest are viewing this topic.

Offline Hondell

  • Enthusiast
  • **
  • Posts: 161
  • Just an easy 1000 Hr. resto
Id a barnett clutch
« on: January 08, 2010, 12:48:45 PM »
Anyone know how to distiguish a Barnett clutch from a stocker? A guy gave me a used vintage Barnett pack but I don't have a stocker to compare it to. Any way of verifying this clutch?
1972 Cb750 resto- 1972 Cb750 stoplight racer- 1972 Cb750 vintage touring - 1979 CBX- 1982 Kaw GPZ- 1968 Honda SS125A

Offline RRRToolSolutions

  • Expert
  • ****
  • Posts: 1,167
  • I love old Japanese bikes!
Re: Id a barnett clutch
« Reply #1 on: January 08, 2010, 01:18:33 PM »
Yes, look at the top photo - serations (oil slots) much more prevalant on the stockers.
The 2nd photo shows Barnetts - far fewer serations/slots.

I will never, never use Barnetts again on a street bike. I had to change these on my CB500 Four because it stcuk everytime the bike sat for a few days - almost welded to each other because of the long, continous surface sticking to the metal drive plates. It had notchy shifting, was hard to get into neutral, and just was not made for street use.

I have two modified bikes - 1 a high-horsepower H2. I use only stock friction plates and find that monster springs will make even normal clutch plates hold. Serioulsy, the Honda 836 uses stock plates and Barnett springs - the highest pressure they sell. The H2 uses stock plates and the heaviest Fast By Gast springs he sells - transmission works perfectly and shifts like butter, no wear on the dogs or the forks and once the clutch is released - that "extra" clamping done by monster springs (only if needed if more power is at home) holds the transfer of power - the H2 simlply strips the center off the tire - never a clutch slip.

Regards,
Gordon



« Last Edit: January 08, 2010, 01:21:18 PM by Ilbikes »
Kaws, Hondas, Yamahas, and Suzukis - especially Kaws

Offline Hondell

  • Enthusiast
  • **
  • Posts: 161
  • Just an easy 1000 Hr. resto
Re: Id a barnett clutch
« Reply #2 on: January 08, 2010, 01:26:44 PM »
Thanks Gordon. Easy ID and thanks for the tip. My clutch slips like crazy when I hit the Nitrous. I'll try the stock clutch and heavier springs and shelve the Barnett. I also had a heavy hitter H2 back in the day. I used H1 fibers in it with heavy springs and it worked killer good. Wish I still had that bike.
1972 Cb750 resto- 1972 Cb750 stoplight racer- 1972 Cb750 vintage touring - 1979 CBX- 1982 Kaw GPZ- 1968 Honda SS125A

Offline 754

  • Really Old Timer ...
  • *******
  • Posts: 29,058
Re: Id a barnett clutch
« Reply #3 on: January 08, 2010, 09:47:42 PM »
What bike is it on?

 I hear a lot of whining on here about Barnetts, If you dont want a racing clutch.. easy.. dont buy one..

 If you want to slip the clutch for a great holeshot or to get into your upper rpm range , get a Barnett.


 Show me a stock one that holds up to a few hundred clutch slipping starts at 7 or 8 K..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Hondell

  • Enthusiast
  • **
  • Posts: 161
  • Just an easy 1000 Hr. resto
Re: Id a barnett clutch
« Reply #4 on: January 08, 2010, 10:56:38 PM »
Sorry CB750 . I drive this on the street and wasn't aware of the stickiness of the Barnett.
1972 Cb750 resto- 1972 Cb750 stoplight racer- 1972 Cb750 vintage touring - 1979 CBX- 1982 Kaw GPZ- 1968 Honda SS125A