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NBs996 03-Feb-2005 15:18

Not sure I'd be holding the clutch in with no throttle while going 6-5-4-3-2
Treat each gear change separately or by the time you get to 2nd the engine might've stalled.
Clutch-blip/click-clutch for each gear as speed reduces, that way the engine keeps closer to the desired rev range and you know you're in the right gear when you let the clutch out, and also the back-torque on the tyre helps it grip the tarmac rather than liftup or wiggle sideways.

Ruth, for slipper clutches your best explanation would be Neil's writeup on http://www.sigmaperformance.com/slipperclutch.html


[Edited on 3-2-2005 by NBs996]

skidlids 03-Feb-2005 16:28

Ruth i'll keep it simple

SLIPPER CLUTCH WORTH EVERY PENNY when your on the track,
also very nice to have on the roads in winter, on the roads in the summer I could live with out it if I had to but i don't have to. Only got a standard 748R one in the 916 and have used it for racing, trackdays and road abuse.

As for downward gear changes, 3 at once with one blip would be nice when in the middle of a race, but doesn't usually work that way, High speed into a hairpin with late braking either trying to overtake or not get overtaken there can be alot going on and sometimes the down changes don't quite go righ

electricsheep 03-Feb-2005 19:32

Quote:

Originally posted by guest1
Either:
1 - to increase the engine speed to such an extent as to ease the meshing of gears when changing down so blip before change(i.e. the lower gear is teeth are moving faster than the previously selected gear teeth - layshaft and main shaft). Much like trying to grab onto the waltzers when they're already whizzing around, it's a damn site easier if you run around at a similar speed.

This is the bit I have a problem with, with the clutch in the engine is not attachd to the gearbox, so it cannot effect engaging the gear. I think this is a misconception based on old non syncromesh gearboxes that needed to be double clutched on a down shift.

electricsheep 03-Feb-2005 19:39

Quote:

Originally posted by NBs996
Not sure I'd be holding the clutch in with no throttle while going 6-5-4-3-2
Treat each gear change separately or by the time you get to 2nd the engine might've stalled.
Clutch-blip/click-clutch for each gear as speed reduces, that way the engine keeps closer to the desired rev range and you know you're in the right gear when you let the clutch out, and also the back-torque on the tyre helps it grip the tarmac rather than liftup or wiggle sideways.

Ruth, for slipper clutches your best explanation would be Neil's writeup on http://www.sigmaperformance.com/slipperclutch.html


[Edited on 3-2-2005 by NBs996]

If the bike is stalling while downshift multiple gears, then I would be looking at adjusting sometime on the engine. BTW 749's are prone to this and I am having it looked at on my own bike soon.

Engaging each gear on the way down the box makes for very busy braking on the track. However if it is working for you I would stick with it. It does not work well for me

Redruth 03-Feb-2005 19:49

Oh god. I'm just sitting here in the office thinking I have soooo much to organise for this season and I can't do any of it till I move house (which I also have to organise, damn it)!

Having now made up my mind that the slipper clutch is essential, I need to get that sorted, along with the gearing changes. I also have to get hold of track fairings, a single seat (not to mention hugger which I still haven't bought although Keefer's on the case! :D). I need a trailer, I need to book and pay for several trackdays, some of which have to be with No limits so I can get coaching from WJB or Dave Lawson, and in the middle of all this I'm supposed to be passing 'masters level' exams. :o:o I'm feeling sick just thinking about all the stuff I haven't organised yet. :barfy:

Sorry, unhinged moment over. Back to the Questions
:burn:

TP 03-Feb-2005 19:51

Get it together Ruth!

Can you hear the box calling?

Redruth 03-Feb-2005 19:53

Quote:

[i]

Can you hear the box calling?

I'm not with you?

NBs996 03-Feb-2005 19:54

Very acceptable answer mr sheepychap.
The stalling is very unlikely, but it did happen to me just the once. Possibly something to do with the lighter flywheel not keeping enough inertia in the engine? Maybe the throttle stop needs turning up a little? Or a combination of both. Or maybe a big bit of chome off the rockers got stuck somewhere it shouldn't! :lol:
But it did make the bike very unstable at the back while it was trying to bump-start itself.

Initially the clutch on every gear was very busy and didn't work too well, but I stuck with it and now it's quite a slick operation which only uses half my brain cells, leaving the other one free to think about everything else!

But yay, do what works, sometimes there's no right or wrong.

TP 03-Feb-2005 19:56

Quote:

Originally posted by Redruth
Quote:

[i]

Can you hear the box calling?

I'm not with you?

The wine box ...

monstermob 998 03-Feb-2005 20:06

Quote:

Originally posted by tp-996
Ruth, all these posts are bollox.

You're bike is simply upset that you put it to bed wet so it gets cold. Dry it off, get a garage heater and make sure it feels loved and this will never happen again.

Dr TP

GET A CHEAP ELECTRIC LEAF BLOWER FROM ----ARGOS? WASH BIKE --BLOW WATER OFF -- JOB DONE
works for me


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