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Post by Tobyjugs on Feb 20, 2022 11:48:27 GMT 1
is there a member on here that does the gear shaft fix with a bush and a ring seal for that , or am i thinking of the right thing ?? ZiG Ask Mutts Nuts he might be able to help you.
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Post by Tobyjugs on Feb 18, 2022 22:39:12 GMT 1
Despite his mechanical skills a young Kenny Everett fails to blend in with the locals... Alex It looks like they're wearing Kenny's shorts
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Post by Tobyjugs on Feb 18, 2022 22:25:21 GMT 1
Well, I'm in the process of building a jig to fit a 4L0 frame so I might be able to answer one or two questions like these. My opinion based on my experiences is that a brand new LC handled better than anything I had ever ridden before. My LC at two years and 20,000 miles had gone off a bit. I would say wear in swinging arm bushes and rear shock were the cause. I don't believe the frame or the swinging arm was flexing personally. Grab the back wheel and pull/push it. If it moves it's the bushes not flex in the arm. A corner like Copice at Cadwell will test that theory. My RGV will touch 110 down the straight, sit up, shut throttle, Chuck it in and about 80 at the apex then full throttle. No drama. A guy on a 250LC was probably touching 90/95 at the same spot. He did the same and the back end was going side to side quite alarmingly to us watching. It didn't seem to bother him and he did it every lap. For those that know he was doing two minute 5/6 second laps, so pretty quick. I reckon that's the tyre on the limit and the swinging arm bushes myself. I really can't see anyone on the road being able to push an LC to the point of frame flex and being able to say hand on heart that's 100% what it is. The swinging arm pivot point on a 31K is beefed up a bit compared to a 4L0, I'm considering doing that to my track LC frame seeing as it's already been butchered. i seejohnny c has posted on this thread.on a bog standard 250lc he did a 1.52 round cadwell in the proam challenge a few years back and won it.these lttle bikes can still get a shufty on with a good pedlar on board Johnny is a humble man with many hidden talents.
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Post by Tobyjugs on Feb 18, 2022 21:37:22 GMT 1
It's nice to see this sort of thing posted.
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Post by Tobyjugs on Feb 18, 2022 21:04:56 GMT 1
I read somewhere that the top and bottom sets of reed petals were fitted with different specifications to achieve a desired performance criteria. Are both cylinders the same?
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Post by Tobyjugs on Feb 18, 2022 20:46:02 GMT 1
You have to give the man credit for making this happen. Great idea.
It's definately not for me. I take great pleasure in using the kickstart when I'm out riding with the cafe racer crowd. Most have electric starters and I tell them a real cafe racer has a kick start lever.
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Post by Tobyjugs on Feb 18, 2022 20:35:16 GMT 1
I also agree with Steve. I went through the chassis on Kees's bike and spent time trying to set it up the best I could. It felt great when pushed hard. I was comparing to my bike with the R6 forks and TZ swing arm fitted with wrong way up multi adjustable rear shock. My bike feels much better just generally riding it around, but the standard lc with front forks and steering adjusted and Wilber rear shock with new bearings etc feels much better to me when pushed hard. This also includes tyres without inner tubes to help keep the tyres run cooler.
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Post by Tobyjugs on Feb 16, 2022 17:29:21 GMT 1
It's "Funds for her" american cousin
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Post by Tobyjugs on Feb 15, 2022 22:35:26 GMT 1
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Post by Tobyjugs on Feb 15, 2022 22:30:53 GMT 1
Go on then Tony where is it? I will have a look its got something to do with stroking something for Kenny Roberts
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Post by Tobyjugs on Feb 15, 2022 22:24:22 GMT 1
Lovely bike Mouse.
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Post by Tobyjugs on Feb 15, 2022 22:20:35 GMT 1
I read the build thread on this one.
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Post by Tobyjugs on Feb 15, 2022 22:18:38 GMT 1
Surely the helical primary can't spread the crank if the RH bearing is good Only side slop in a worn bearing would allow this Steve I think it's more to do with oscilation and high rpm. The crank shaft in my 400cc engine has been out of phase which i put right then it started spreading so i pressed it back and got the pins welded. It's still good now but hasnt been so badly mistreated as the other.
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Post by Tobyjugs on Feb 15, 2022 21:46:48 GMT 1
In the real world I doubt they make an appreciable difference, however on paper they sound good. I’ve already mentioned I think it would be a sin to replace the basket on a perfectly good gear set. However I’m thinking the superfinishing will reduce drag helping power and less wear, and the side loading on the crank be eliminated. I know I could achieve overall gearing with sprockets, but I wonder if doing this at the clutch will increase torque in the power curve? I intend to fit an 8 plate capable basket, so if in the future I decide I want 8 plates the inner basket change would be a quick and easy swap. I’ll start with 7 plates and wider frictions. Jon Even with straight cut primaries a new crank shaft was pulled open. More to do with the rpm or possibly crankshaft quality.
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Post by Tobyjugs on Feb 14, 2022 20:42:09 GMT 1
Hi Im having brake issues, braking is very noisy know, we have change pads everything has been clean anti zedd also applied. Any ideas? Have you found the root cause?
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Post by Tobyjugs on Feb 14, 2022 20:40:34 GMT 1
I have some Triumph calipers now and not sure what to say.
One fits well with the disc in the center and the other doesn't fit very well. The badly fitting caliper could do with moving in towards the center of the wheel or the disc needs shimming out. I would say 1.5-2mm.
Im going to measure up the surface area of the pistons and have a look at my notes to see if i have a master cylinder to match from previous experience.
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Post by Tobyjugs on Feb 14, 2022 18:53:35 GMT 1
I balanced them using the two tickover screws and then using the windows to sync the slides.
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Post by Tobyjugs on Feb 14, 2022 15:19:55 GMT 1
I balanced a set of carbs once using the two holes from the balance tube. It worked well but when I reffited the balance tube and started it idle was over 2000 rpm. Just a heads up.
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Post by Tobyjugs on Feb 14, 2022 15:00:34 GMT 1
I never bothered on mine, just used the standard helical gears Know what you mean about gearing, I've got 17/41 with 17 inch wheel and it's under geared I have a 39 to go on the rear which I haven't tried but I may just buy an 18t offset front sprocket Steve I've tried allsorts of gearing on my 400cc engine and ended up with the 17/41 using as set of Nova primary gears. I liked the combination as top speed was enough and I prefer the acceleration. The same engine is now running with the dry clutch the straight cut primary gear ratio is 2.53/1 with 16/41 sprocket set up. This is woefully tall. I don't have a Speedo but I estimate around 80 mph for 6.500 rpm.
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Post by Tobyjugs on Feb 13, 2022 12:36:59 GMT 1
Lovely bike. Was there a specific reason for changing the radiator?
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Post by Tobyjugs on Feb 13, 2022 11:23:21 GMT 1
Jon i have used the following,
Nova Gears: Super finished with a tooth clearance of 0.20mm. Good quality as expected but customer service can be excellent or crap as experrianced by me and others. Plug and play.
Norbo's Gears: I'm not sure if they are superfinished or just well made from the off. Tooth clearance is a bit sloppy at 0.24mm. This set is the most abused set of primaries i use. Currently fitted to a big bore engine with no signs of deteriation. Cheaper than Nova Gears and fantastic customer service. Pay attention to the clearance of the water pump thrust washer and the crank primary.
Liberty Gears (USA): Not used them much, not so keen on chunky crank primary gear. Off the top of my head i think the crank gear is higher than a standard crank gear.
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Post by Tobyjugs on Feb 11, 2022 10:48:24 GMT 1
Thats a very good idea to get the suspension sorted along with chain run before you get those pipes done. I've seen a pipe builder send two people away because there was not enough room to make the pipes correctly. I would imagine the pipes will have a bit of "gurth" as well
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Post by Tobyjugs on Feb 9, 2022 0:00:36 GMT 1
Maybe it's also to do with the disc's fitted. A freind who seems to be always on the internet lately has sourced some calipers for me. When i recieve them i will know for sure.
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Post by Tobyjugs on Feb 8, 2022 22:34:35 GMT 1
I thought the fingers looked a bit strange.
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Why ???
Feb 8, 2022 22:24:06 GMT 1
via mobile
Post by Tobyjugs on Feb 8, 2022 22:24:06 GMT 1
I would say why not.
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Post by Tobyjugs on Feb 8, 2022 22:10:48 GMT 1
Off the top of my head i think M5 with a 0.5mm pitch. Maybe loctite is used instead of jis
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Post by Tobyjugs on Feb 8, 2022 22:06:08 GMT 1
Sorry but not sure if this has been posted here before, but if it has my appolgies. MV’s water-cooled boxer-4 – the hush-hush project of the mid-‘70s intended to keep 4-strokes in the 500 GP hunt. With electronic ignition and fuel injection planned, the narrow flat-4 showed promise – only to be consigned to history’s ‘what if, pile when the factory quit racing. Best regards Johnny C Thats an interesting layout. In the picture it looks likes like the cyliders are not diametrically opposite.
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Post by Tobyjugs on Feb 8, 2022 21:49:12 GMT 1
Is there enough clearance where the disc runs through the slot in the caliper halves Can you raise the front wheel and give it a spin You have just confirmed what i have measured on a Tiger with 83mm spacing. I measured that the discs from a 350LC would not sit in the center of the groove. i worked out roughly 1mm clearance on the inside of the caliper. All what i measured was on a bike so even though i measured it umpteen times i put it down to my inaccuracies due to all being built up and no one mentioning it on the other thread i picked up on.
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Post by Tobyjugs on Feb 8, 2022 21:29:39 GMT 1
good to see you are still progressing with the bike , that Suter rear master looks trick , i remember wanting a swingarm from them for a KTM and it was over three and a half grand 15 years ago mart I wanted a rear master cylinder with a built in resevoir. If all the specifications are correct then the Suter is cheaper than a Brembo for the same spec. That's a crap excuse as i really wanted one for the NAME, The funny thing is i've seen pictures of the MMX 500 used in the IOM TT and it uses a Brembo and not their own make
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Post by Tobyjugs on Feb 8, 2022 21:19:10 GMT 1
Have you checked the tightness of your disc bolts to your whwel rim?
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