Topic: K5 Clutch backet assembly on my 78 F2?

[Marco83]

hi guys,

can i use K5 Clutch backet assembly on my 78 F2?



thank for looking! 

[Marco83]

do anyone know? 

[Tower]

The baskets and clutch inner are not interchangeable.  The f2 has a double rivet clutch disc and deeper basket.

Swap out the whole assembly or remove the double rivet and a clutch disk to install a K5 basket, inner, springs, etc..

[Marco83]

hi for the reply,
Btw, i install 7 CLUTCH DISK(number 3 on the image) and never install parts number 4, is it ok?

[Tower]

If you can disengage the clutch without sticking, then its fine.  There is more than one way to configure a clutch assembly.  The other way is to remove part #6 and adjascent part #3, but keep part #4.

If you have mixed a K5 basket (#1) with an F2 clutch inner (#2), this will be a problem because an F2 clutch inner is too long for a K5 basket.

Edit: replacing #4 with another #3 (instead of simply discarding it) will not work, because #4 has a wider inner diameter.  Hence, using an extra #3 disk will result in no contact with the clutch inner disk surface.  This also forces all the other plates together, and with no slack, the clutch will not disengage.

[eurban]

What basket (#1) are you using?? #4 disc has wider tangs that mate into the wider area at the ends of the "fingers" on the #1 (F2) clutch basket part.  I am not aware of it having a different ID but that is possible.  If you are using your f2 basket then the #3 part wont fit the last slot properly.  What the end result will be I cannot say but it will probably be less than optimal.

[Marco83]

guys,
So if i using a F2 assembly, The clutch will not work with 7 pcs of #3 and a #4 is a must have item? Am i right? sorry for being so noob.

[eurban]

I can't say for sure that it won't work OK but there will clearly be issues with sloppy fitment as the basket fingers have a wider spacing between them at position for the farthest out friction disc.  I really can't see the point of not doing it correctly.  Part is available from both Honda and the aftermarket (try partsnmore).   I would say do it right or you are likely wasting your time!

[Marco83]

True, got a problem now. i cant find #4 right now. partsnmore does not shipped to singapore. anyone can help out?

[Tower]

Now I am  a little confused about which parts you are trying to mix and match. 

A K5 clutch will fit onto an F2 bike, but you would need to replace all of the following F2 parts with K5: basket, clutch inner, pressure plates and springs, remove disk #4 and replace #6 with #5 (or keep #6 and remove #4 and #3 at the opposite end).  In general, swapping F2 for K5 clutch parts is not a great idea, as the F2 clutch was stronger, less noisy, and better lubricated for longer life.

Which K5 clutch parts are you trying to use on your F2?

[Marco83]

i bought a K5 assembly off from ebay and thought i can use it without any mob. Guess i am wrong.

I still have my F2 assembly but i does not have #4 right now. i install 7 pcs of #3 without #4 but not sure whether it will work..

 

[Tower]

What is a K5 assembly? - is it the outside basket and 6 pairs of disks and plates only?  or does it include the clutch inner and pressure plates and springs?

If you have a complete F2 assembly, but are missing #4 disk, that is not a  problem.  You will not damage the clutch inner by simply omitting #4 disk.

You will damage your F2 basket by using a #3 disk instead of #4.

A K5 basket will not assemble properly onto an F2 clutch inner and plates, for the reasons I've already mentioned, without replacing other parts as I have already outlined.

[eurban]

If you have a complete F2 assembly, but are missing #4 disk, that is not a  problem.  You will not damage the clutch inner by simply omitting #4 disk.

You will damage your F2 basket by using a #3 disk instead of #4.

I would tend to agree with the second part of what you say here.  I also agree that going to an entire earlier clutch assembly would be a retrograde move . .  .However, how is omitting an entire disc going to produce a decent long term result?  Simply said, get the right parts Marco!