Back to the future LCII rebuild

[cj]

Well yes, I took Norbo up on his offer of an old LCII sale for a rebuild. I had been looking for a very early model bike for some time when I happened to see this on the site (And a fine site it is too!) - Thanks to Norbo for the bike and thanks to Marco for safe delivery. This rebuild is going to take a significant time as I'm very busy with other things but rest assured I like photos ;D and will enjoy posting progress + info. TBC
Current condition - don't be fooled, the pictures make this look good!

[nikfubar]

Looks like you need a skip to give you a bit of working space ;D
At least you have a good starting point, bike looks pretty complete, my latest build started with only a swing arm.
Good luck, keep us posted

[guiri]

hi cj, the float pins are all pan headed one one side as standard mate.

[cj]

Float pins - Thank you guiri & Gaz. Point noted, took the other carb off today and like you both said... one end is paned over.

Removed those rear sets today, will look into exact measurements when I get a minute but thanks Gaz for pointing out the hydraulic mounting points.

To spruce things up a little, surely this can't be right?
Apologies for the high resolution but its worth it



I suspect that the engine had an interesting range considering the valves are out too

Anyway, new jets required dependant on future setup. Never the less the carbs needed a little love so I started with one today.







When both are looking resonable they will get an ultrasonic bath followed by a good polish. (Still could use any tips on performance differences between these and original ones if anyone has details)

To be continued...

[mellow]

odd jet size lol.im sure standard jets are 185 then the power jets are 65 one side and 55 the other
Mate u did a crackin job on that carb......wot did u use??

[Norbo]

The jets are way out 220 and 260 LOl how the hell did that come about and they look well batted. They should be running £185 or 195 mains.

As far as performance go's i would not worry about it with the power jet carbs they are perfectaly fine . However it being all matcjhing numbers and 2 previouse owners id be trying to keep it as standard as posable . so standard 31K carbs would be a must . I dont mined a chrome rad grill or allspeeds even braded hose as thes are bolt ons but i keep keep standard wheels carbs etc .

[Shytalk]

Nothing that a grand or so won't put right ;D

This is / was what mine looked like when I bought it a few years ago

[Norbo]

They all start as dogs but i know you lot . they all end up as show bike s.

[Deleted]

May 22, 2010 15:37:24 GMT 1 cj said:

Taking a looky over the lump I spy a shiney bit, the valve linkage.

That valve joint doesn't look like it's ever seen the road. No road dirt, never mind oil leaks. It's cleaner than mine and I've got new seals!

[bare]

They don't all piss out oil. Only the ones with clapped out bushings and/or PV's.
The area below the joiner is also clean. Note the rust on the cyl hold down nut/bolt.
Leakers don't allow rust to form

[daveg]

I have some LC II carbs I would swap for your FII ones especially as you've cleaned them up! If you are interested PM.

DaveG

[cj]

Thanks for the offer daveG but I had already arranged for 31k carbs. I will run some comparisson tests when the bikes running and obviously offer them to you first if they are not required.



Comparing the FII and 31k carbs it would seem the mould was already formed to facilitate the incorporation of the powerjet additions but was not machined out. Wondering if better carb performance was found but saved for future models as a direct "improvement" mod. Ideas anyone?

[kennyroberts]

i shall watch with much interest, im doing an f2 , left unloved in an allotment for around 8 years outside ....manky !
am enjoying every minute of it. im loving this site for inspiration, contacts help and tips etc..

and ill need every bit of help, this is a FULL nut and bolt rebuild,
have done a few bikes in the past, but not this in depth.
i shall have to get a thread sorted and post a few pics as i go

good luck with your project !

Attachments:

[Norbo]

Jun 5, 2010 22:41:00 GMT 1 kennyroberts said:

i shall watch with much interest, im doing an f2 , left unloved in an allotment for around 8 years outside ....manky !
am enjoying every minute of it. im loving this site for inspiration, contacts help and tips etc..

and ill need every bit of help, this is a FULL nut and bolt rebuild,
have done a few bikes in the past, but not this in depth.
i shall have to get a thread sorted and post a few pics as i go

good luck with your project !

I have top say im exstreamly impresed with the labled draws under the bike . Now thats what i call organised.

[kennyroberts]

many thanks..
i have a new thread started with pics without hijacking |CJ's thread.
whos progress i will be sure to watch closely..:-)

[cj]

Just a small update -
Carb's post ultrasonic bath time









Posted these images for folks purely to gauge the effectiveness of the cleaning process.
Many thanks go to Tony.W for his assistance

[Norbo]

They have come up nice and it cleans the air ways in side as well .

[midlifecrisisrd]

May 26, 2010 21:48:05 GMT 1 Norbo said:

They all start as dogs but i know you lot . they all end up as show bike s.

That will be the same as women during the consumption of beer.

Steve

[kennyroberts]

can you let me know who did your carb claening, and how much £, wanna do mine very soon, as well as my fuel tap

[Norbo]

Jun 19, 2010 23:07:53 GMT 1 kennyroberts said:

can you let me know who did your carb claening, and how much £, wanna do mine very soon, as well as my fuel tap

If your looking for spmeone to do this for you i allways recomend a bloke called Doy he is on hear but this is his number . He will do an excelent job. 07708 098571 .