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Post by LC_BOTT on Oct 7, 2019 13:17:19 GMT 1
Hi, thought I'd ask as I've no experience with these.
Errmm, how do you fit them and what are you using (or not) from the standars set-up.
It's the one with the bolted weights/arms, and I think I've read on here that you can still use half the standard springs???
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Post by Norbo on Oct 7, 2019 14:48:41 GMT 1
They are very simple to fit just bolt on to the out side of the face place as all ready fitted you dont need to do anything other then remove the 8 bolts and fir and fit 8 new bolts that come with the kits . They do work very well but fitted for looks they do look great weather you need them or not.
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Post by tipfinchy on Oct 7, 2019 16:53:29 GMT 1
fairly sure it needs a wider clutch cover and no oil pump
mart
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Post by Norbo on Oct 7, 2019 17:11:31 GMT 1
well yews ofcourse you need the cl;utch cover to soot to give the room for the lock up i was talking about the fitting of the lock up its self . But you can run an oil pump if you have 1 with the cover on a standard covers its only on the fancy billet ones were you dont get the oil pump
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Post by Tobyjugs on Oct 7, 2019 17:30:03 GMT 1
I fitted the ball bearing type to an RD FOR a sprint competition. It did it's job well. Last year after the sprints the oil was really black from the clutch slipping before it gripped. This year the oil was still a nice golden brown colour after fitting the lock up clutch plate.
With the ball bearing type there is no bling only the standard cover.
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Post by rigga on Oct 7, 2019 18:01:22 GMT 1
Run 4 springs in mine, and the action is very light  |
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Post by LC_BOTT on Oct 7, 2019 19:23:15 GMT 1
Thanks for the replies, assume were talking 6 bolts as in a standard clutch (and shown in rigga's pic), bin a couple of springs or use 3 heavy duty? Then bolt the wizzy bit on top of the standard alloy pressure plate.
I can't remember if it has the oil pump facility in the cover or not (bought it of you Norbo S/Hand some time ago), will have to look again. Stupid really as I had an uprated one done by Arrow a while ago, when he did a couple of pump refurbs for me.
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Post by morgy on Oct 7, 2019 19:34:47 GMT 1
I've been looking at these and wondered what else you need to fit and what the gain is when fitted..
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Post by rigga on Oct 7, 2019 19:44:24 GMT 1
Use standard springs, as the motor spins, extra force is applied to the pressure plate due to the arms spinning outwards, will admit its bling only on my pretty much standard engine, but for those tuned it will negate the need for heavier springs, and thus a gorilla like grip needed to use the clutch.
Plus it looks trick ......
Mines a converted ypvs cover off Norbo, and runs a oil pump.
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Post by Tobyjugs on Oct 7, 2019 20:56:03 GMT 1
Use standard springs, as the motor spins, extra force is applied to the pressure plate due to the arms spinning outwards, will admit its bling only on my pretty much standard engine, but for those tuned it will negate the need for heavier springs, and thus a gorilla like grip needed to use the clutch. Plus it looks trick ...... Mines a converted ypvs cover off Norbo, and runs a oil pump. If the engine is high revving do you still need a gorilla grip to change gear? |
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Post by rigga on Oct 7, 2019 21:41:03 GMT 1
No clutch feel does not change with increased engine revs
Plus I don't actually use the clutch after Going to second, find that I can change gear easily just backing off the throttle, does no one else do this?
Use the clutch going down the box though.
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Post by JonW on Oct 7, 2019 23:01:31 GMT 1
I fitted the ball bearing type to an RD FOR a sprint competition. It did it's job well. Last year after the sprints the oil was really black from the clutch slipping before it gripped. This year the oil was still a nice golden brown colour after fitting the lock up clutch plate. With the ball bearing type there is no bling only the standard cover. Interesting... so this type fits under he standard cover? If so Im keen to fit one on my 421. Do you have a link Toby? |
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Post by rigga on Oct 7, 2019 23:05:47 GMT 1
I fitted the ball bearing type to an RD FOR a sprint competition. It did it's job well. Last year after the sprints the oil was really black from the clutch slipping before it gripped. This year the oil was still a nice golden brown colour after fitting the lock up clutch plate. With the ball bearing type there is no bling only the standard cover. Interesting... so this type fits under he standard cover? If so Im keen to fit one on my 421. Do you have a link Toby? Mutts sells a ball bearing version www.muttsnuts2strokes.co.uk/parts-for-sale/lock-up-clutch/ |
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Post by veg on Oct 8, 2019 7:32:12 GMT 1
Been looking at these as I need one because of the tz barrels another thing for Dave to do when he does my pipes.
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Post by hoist1 on Oct 8, 2019 8:29:39 GMT 1
No clutch feel does not change with increased engine revs Plus I don't actually use the clutch after Going to second, find that I can change gear easily just backing off the throttle, does no one else do this? Use the clutch going down the box though. This has occurred to me after decades of big diesels gearboxes, that an rd box is going to be slick and light enough to like you dispense with the clutch a lot of the time. Back in the day a mates rd stripped the drive in the cover and the local dealers didn’t have one. I rode it up from Canterbury to brockliss in south London without a working clutch. The biggest challenge was finding my way about, riding the bike was easy, even pulling away I would just give it a scoot with a foot and never felt I was abusing anything. The shop were great and let me use their workshop to fit the new drive before heading off into the now darkness. |
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Post by Tobyjugs on Oct 8, 2019 11:14:24 GMT 1
I got the lockup from Mutts as well.
Google stealth lock up clutch and you will find a few people selling them
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Post by Norbo on Oct 8, 2019 17:13:08 GMT 1
Ive had tghem for about a year and a half just never put them on the site think they are £180 not done many as they look shite with a clear cover or dont look at all if fitted to a standrd casing but they do do the job . for very little more you can have the very trick looking casing as above .
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Post by Tobyjugs on Oct 8, 2019 20:27:41 GMT 1
I fitted the ball bearing type to an RD FOR a sprint competition. It did it's job well. Last year after the sprints the oil was really black from the clutch slipping before it gripped. This year the oil was still a nice golden brown colour after fitting the lock up clutch plate. With the ball bearing type there is no bling only the standard cover. Interesting... so this type fits under he standard cover? If so Im keen to fit one on my 421. Do you have a link Toby? You still have to make some small mods and it's designed to be used in a YPVS block not a 4LO block. To fit it to a 4LO engine I had to make another clutch adjuster mechanism, fit a ypvs ball beaing, fit a YPVS clutch side casing and I modified the input shaft as well. |
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