83 CR500, here begineth the lesson

[Wildebeest90210]

Exactly like that yes...should have read "fork" emulators.

I'm still none the wiser. Give us a link or a clue?

 

[Wildebeest90210]

Very interesting read. I have been very curious about that as well. Having occassionally read folks saying how much the tracks had changed. I haven't ridden regularly in almost two decades. And I'm intending to dial my bikes, and myself, and push my condition as hard as I can. With the goal to be perhaps racing before the year is up. Not sure what its going to take physically, since its been so long. But I used to ride tracks from several times a week, to a day or two every couple of weeks. I'm hopeing I can shoot for that kind of schedule again, after some time. Have some big permanent injuries to contend with, and possible arthritis due to the injuries in some places. But hey, riding is so much fun, you tend to forget about that kinda junk at times. Atleast thats how I'm hopeing it will still work.

I used to take big air jumps, that most others were afraid of. Even if I was on a smaller bike, like an 80/105cc, or a 125. But I don't know, nowadays, I think I might not have that no fear mindset. Will just have to wait and see. I know I have zero interest in all the tricks alot of folks do now. My bag of jump tricks is still gonna be pretty short, with a table top being my crazy extreme one. I'm going to be real curious to see if I can get comfortable enough again, to take real big double and triple jumps. My bikes will have more than enough power, so it will all be up to my skills and conditioning.

My ultimate goal, would be to race my 1980's big bores, in a class against new bikes on occassion. Just to see how my speed really compared, and maybe show up some guys on newer machines to, perhaps......

Best of luck, you'll have a blast. I like the idea of leaving new bikes in a haze of proper two stroke smoke ! The guy I was talking to also races new bikes at 40+, never stopped racing.
On the subject of jumps, last year I think, on a semi works 450 the same fella rode the infield MX at the F1 Grand Prix at Silverstone with a huuuuuuge tabletop. If you don't come out the corner before all balls you stand no chance of taking it in one, lap three... slight lapse and BANG. Lands 5 yards short, out for hours. Sells the new 450 the next day and swears enough is enough. This year has a twinshock 250 and another new 450 ride lined up!!! As a road racer I can kind of see it but really, theres only so many bones you can break !?

 

[Wildebeest90210]

A still life from my box of shiny things for personal motivation purposes.

 

[hvaloz2]

err white grips?? nooo...... blue cable.... again noooo but gunner gasser yes.. best thing for years...should be compulsory like ohlins and mikuni...

 

[Bengt Husky]

I'm still none the wiser. Give us a link or a clue?

They are a bit like cartridge forks on modern bikes. They fit on to the damper rods and have a valve arrangement to restrict the flow of oil providing the damping effect. which is what the damper rods do. Problem with the damper rods is that the oil viscosity has quite a big impact especially when running higher weight oils. As the forks do work the oil heats up and its ability to "damp" reduces.

These give you an idea how they work....there was an article where Chuck Sun was trying them in his MAICO for Farleigh. I'll try and find it and post it up if I do.

http://vmaxoutlaw.com/tech/cartridge_emulators.htm

 

[Wildebeest90210]

err white grips?? nooo...... blue cable.... again noooo but gunner gasser yes.. best thing for years...should be compulsory like ohlins and mikuni...

Oh yes. Think 1980's BMX... You can't stop me ****************************************

 

[1Tuff500XC]

LOL, not sure I've seen white grips. Atleast not outside of the BMX realm, a long long time ago.....

 

[Wildebeest90210]

They are a bit like cartridge forks on modern bikes. They fit on to the damper rods and have a valve arrangement to restrict the flow of oil providing the damping effect. which is what the damper rods do. Problem with the damper rods is that the oil viscosity has quite a big impact especially when running higher weight oils. As the forks do work the oil heats up and its ability to "damp" reduces.

These give you an idea how they work....there was an article where Chuck Sun was trying them in his MAICO for Farleigh. I'll try and find it and post it up if I do.

http://vmaxoutlaw.com/tech/cartridge_emulators.htm

Very interesting, something for the future maybe. As for now the kind of riding I do is mostly on a tarmac/loose surface/single track lane so no big impacts. Either braking or the front wheel in the air and no heavy cornering so I think I will rebush and spring and see how that works.
Soreley tempting though !

 

[Stupot]

If your struggling for a 500 barrel and head i have one thats in good condition,got it in a job lot of Husky bike parts.

 

[Wildebeest90210]

If your struggling for a 500 barrel and head i have one thats in good condition,got it in a job lot of Husky bike parts.

Thanks for the offer, got hold of a good 430 barrel,piston and head from the states at a good price which should be ok for now.

 

[Wildebeest90210]

The first Red Cross parcel from HVA factory.


That should get me going. All the other bearings in tomororrow and should pick up the cases all finished.
Not only am I enjoying meeting people on here I get to meet some great people when I'm building bikes. Day off work today so picked up parcel, dropped hubs off at Dels for lacing up. 4.25x17 and 3.5x17 SMR pros ordered up in gold (thanks for the sizes Schimelaw). Dropped off shocks and yokes for more metallic blue with Dennis who has worked in what is really a shed since 1867 but does the most wonderful bike paint.
Off now to put another coat of paint on the KTM tank at a mates workshop and drink tea and talk shite. Then off to deliver crank to an engineering guru Mr G who does anything you can imagine in a small workshop and actually know more than God about engines.
Then home to sort out my nickel plating then I'm going to walk to the pub and drink Guinness until the wife comes to get me.
I know its not a competition but that to me is a pretty good day.

 

[Wildebeest90210]

One gearbox question. There was a lot of end play on the main shaft and quite a witness mark (pic) from the sprocket bearing. I will find out what controls the end play when I do a dummy build or two on the cases and can see whats happening but any clues in advance? Should there be a thrust washer/spacer on that end bearing? One for Bengt or Bengt senior maybe..

 

[Wildebeest90210]

I mean float rather than end play.

 

[1Tuff500XC]

Yahoo, man, dig seeing those parts/goodies. Also glad to see HVA Factory finally got some decals made up. They look nice. I had been bugging them for quite a while to get some created. I'll likely be after some more stuff from them myself, in just a few weeks.

Looks like some important parts.

Couple of questions;

Is it normal to see that kind of porosity that I think I'm seeing on the rods beam area???? Can't say I've noticed porosity on any kind of rod before.

Also curious about the heat bluing, also on the rods beam area? Is that from straitening, or shortening the length, due to it being originally for another application. Just curious....

Really enjoying this thread. Very inspiring. I need to follow your lead, and get onto my bikes...

 

[Wildebeest90210]

Questioned that myself. Just some scaling from forging and the blueing from the heat treatment on the rod ends. Also asked my crank man about polishing and peening the rod ends and beams but he say no. Waste of time and reckoned its good to go as is.
Learnt about silver plating and cage weight, inertia and rpm compared to crank rpm in big ends today. I hope I forget it in case it pushes something useful out of my brain and I forget how to walk. Interesting in a very geeky way though.

 

[Bengt Husky]

One gearbox question. There was a lot of end play on the main shaft and quite a witness mark (pic) from the sprocket bearing. I will find out what controls the end play when I do a dummy build or two on the cases and can see whats happening but any clues in advance? Should there be a thrust washer/spacer on that end bearing? One for Bengt or Bengt senior maybe..
View attachment 13651 View attachment 13652

Mate,

The pics are very difficult to see. Can you re-posat them as full size ?

I'll pass them on the the old man. The '83 is getting a bit late for his knowledge, but the gearboxes on these old girls are almost all the same. I've been scouring the planet for a poxy thrust washer (part no. 842) on the main shaft of my '82 430. I did track one down in Belgium, but then found the same washer is used in the '79 390 Gearbox. I just happen to have a complete engine for on eof those lying under the bench awaiting a rebuild. I've just got to keep it quiet from my mate (who owns it) that I've nicked it....
I'll speak to the old man at the weekend and see if he can shed any light on your gearbox.

 

[Wildebeest90210]

Knowledge from America has arrived ...

 

[1Tuff500XC]

Very nice. I need to see if I have all of those I need, from here online. Seems to me I'm still in need of one or more service manuals.

 

[Wildebeest90210]

Mate,

The pics are very difficult to see. Can you re-posat them as full size ?

I'll pass them on the the old man. The '83 is getting a bit late for his knowledge, but the gearboxes on these old girls are almost all the same. I've been scouring the planet for a poxy thrust washer (part no. 842) on the main shaft of my '82 430. I did track one down in Belgium, but then found the same washer is used in the '79 390 Gearbox. I just happen to have a complete engine for on eof those lying under the bench awaiting a rebuild. I've just got to keep it quiet from my mate (who owns it) that I've nicked it....
I'll speak to the old man at the weekend and see if he can shed any light on your gearbox.

You should get them by clicking on them, if not I will post again.

 

[matt guffogg]

Thou shalt not ever buy a shiny motorcycle at a service station from a man from Yorkshire in a white van. I might not get the pics right as its my first post but you should see a mixed up 83CR with 84 plastics. "Its just been rebuilt mate, might be tricky to start". Yes with no spark it was !!! Fixed that by spacing the stator out 1 mm but had the knackered shocks off being rebuilt so didn't try to start it. Then I started to look at it, what an absolute dog. What a cobbled together sack of ****. A 430 motor in a 500 frame is ok by me but then in trying to fix the gear lever return I found the case had been bodged and the outer clutch plates had been rubbing filling the gearbox with ally grinding paste. "You might want to change the gearbox oil soon mate" He knew !!! Then I found a blanked off waterpump, the wrong case entireley!!! Then I spotted a spacer under the barrel, signs of tuning, uh oh. The pics don't do it justice, all the meat gone from the inlet port and yes, it is cracked. A maico 490 piston ported by a 3 year old with a penknife cos its run out of liner and over a mill play in the big end sideways. A scrap barrel piston and head thank you very much. The crank cases are full of paint that much I know but I don't have the mental strength to split the cases yet.
On the bright side I have some shiny things in boxes waiting but that seems an awful long way off.
I've tried ranting at the wife but she just smiles as you would do to a mental patient, so thanks for listening if you got this far.

View attachment 13182 View attachment 13183 View attachment 13184 View attachment 13186 View attachment 13188

Seems like a good project i fancy road registering my XC 430 done this before with a Kwak 250 how did you go on getting a sertificate of newness i tryed but got nowhere ?? could you let me know how you did it if poss