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Hondaman clutch mod

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MarkCR750:
I did the hondaman clutch mod this morning, it seems to have worked well, putting it in 1st now doesn't result in the bike trying to pull forward, finding neutral from first was sometimes a bit of a faff but it now selects effortlessly , had a minor trauma when I broke the clutch lifter plate refitting it but replaced it with the one from an engine I'm stripping, it used to clonk into first but of the ten starts I just did it only clonked twice, I still have to set the adjuster properly so maybe I'll get 100% once that's done, the above was with cold oil as well, so I'd recommend it if you have gear change issues, photos below show the extra holes I drilled in the clutch hub (2 extra holes per quadrant) and countersunk all holes including the stock ones, cheers Mark.

royhall:
Its so easy to break the clutch lifter plate on a 750, it's very hard to feel when it's down flat. Tightening the opposite bolts a little at a time by hand is the best way. Now you've broken one you can join a very large and growing club. A very interesting mod that, just wondering, how does it stop the crunch into first.

MarkCR750:
I guess it was because the clutch was dragging before Roy , therefore the gears/selector were under load as the gear was being selected, an exaggerated scenario would be trying to put the bike into gear without using the clutch at all, I believe the extra oil flow through the clutch aids the plates to seperate , that's my take on it but I'm not a scientist 😀

royhall:
HHMmm. That would make sense I suppose. My F2 only does the heavy crunch the first time into gear, after that the crunch is much lighter. Not sure if  Honda modified the F2 clutch or not, I put that crunch down to sticking plates.

MarkCR750:
For those that haven't broken a lifter plate yet, here's what I wish I had done the first time!,nip up all 4 bolts, then remove one, look inside the hole with a torch to see if the plate is seated on the tower, if you see a gap of even half a millimetre remove the plate, File a slight lead on all 4 towers, put the plate back on but only nip up the bolts, remove one, check there is no gap, replace it and nip up, remove the next bolt, check there is no gap, repeat this on all 4 bolts, once you are sure the plate is touching the towers at all 4 positions torque it up, hindsight is a wonderful thing 😀

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