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Showing posts from March, 2016

How I converted a wet clutch basket for use with a FCC Dry Clutch (Part 3)

And here is the final part on using a wet clutch basket for a FCC dry clutch conversion.
I installed the clutch basket on the lathe and just did a simple "boring" operation. The FCC basket had a clearance of about 0.5mm with the backplate, so this was not really a critical job and it was easy to aim for a tighter clearance as well.
 And here is the result after the boring job...
The backplate is now a nice and tight fit and everything looks good. I've also used the cushions from the WET clutch basket as they fit perfectly. I don't see why Honda may have used separate rubber cushions for a dry clutch. One thing to note though is that due to exposure to high heat and no lubrication, they become very stiff and fragile while the wet clutch cushions have normally a more prolonged life.

I didn't bother with making or buying new rivets as well. I just used a tap to thread the existing holes. Just out of memory, I believe it was a M5 tap that I used.


And here is the e…

ΤΖ250Τ '87, YPVS Curve

I repaired a TZ250 YPVS controller today that belongs to Dale(UK). It's from a 1987 TZ250T model and I came across another one unknown YPVS setting that I'm sharing below. This setting doesn't seem to do a lot and it's more like an "on-off" switch for the exhaust valves, as it starts opening the valves at 7.500rpm and it completes movement at about 8.000rpm.


And here are a few photos from Dale's bike.
Cheers.