93 clutch replacement

[Paul.1478]

Hello,
I recently got my 93 back on the road after about 15 months of sitting. I sent Robert the carbs and he did his magic, also new brass and 2 sixes large main jets to go with the last RPM exhaust left.
I went on a long ride this past weekend and noticed under REALLY hard acceleration the clutch slips a bit now.
I have been riding for 45 years, never had to replace a clutch so forgive my ignorance.
From reading this form it would seem very likely it is the clutch spring. I think all I would need to do the order a new original Yamaha one from Robert, new gasket and a stock clutch pack. From the drawing and a video I have seen, it seems I only need to remove the old spring and the clutch pack, then clip marked number 8 (and toss it out) and then the last plate 6.
Does this sound correct? No need to dig down further unless there is signs of damage.
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[Pat Conlon]

We have a section devoted to this: https://fjowners.com/index.php?topic=1808.0

[Paul.1478]

Yes, I read that and that is how I came to the conclusions I have made, just trying to verify.

[Pat Conlon]

Ok, glad you read it...
1) if your fiber plates are worn, then yes, plan on removing the old fiber plates, steel plates, retaining wire clip, small inner fiber and cushioning spring. Replace the small inner fiber plate with a full size fiber plate. RPM sells a special clutch kit with these plates.
2) if your fiber plates are not worn, don't mess with them....then all you have to do is to replace the diaphragm spring (or add a second spring to your existing spring, or a Barnett coil spring conversion) I like the Barnett kit.

Chances are, all you really have to do is to add a second spring.(or Barnett kit)

Cheers.  Pat

[Paul.1478]

Thank you Pat for the information.

[Pat Conlon]

Be careful of the oil you use. Make sure it's motorcycle oil that's safe for "wet clutches". Automotive oil has friction modifiers that will cause your clutch to slip.

Cheers.

[Paul1478]

Yes sir. I did not know that until about 3 years ago, I saw something on this form that made me change to only motorcycle "approved" oils.