Project shite bike - CB250g

[inch_speller 0]

Ok so I'll start a little build thread

Hope you all enjoy the quick catchup


Started with this


Done this


A bit of this


then to


Postman brought me one of these



How she stands



Progress has slowed now and I'm trying to suss what bike to take the rear brake setup off. (Open to ideas and input)

Cheers

[Stue11 0]

I cant help ya on any ideas but ile enjoy watching the progress

[RichardH 0]

You rebuild/project Guys amaze me, you turn a piece of junk into summut megga

[inch_speller 0]

ITCHY wrote:

You rebuild/project Guys amaze me, you turn a piece of junk into summut megga

Cheers dude.

Just a whole lotta turd polishing!

[Guest Guest]

clip on's, twin high level pipes, rear sets, rs125 subframe and seat with single seat cowl and...hang on a moment i just made a mess in my pants

[inch_speller 0]

@airlock wrote:

clip on's, twin high level pipes, rear sets, rs125 subframe and seat with single seat cowl and...hang on a moment i just made a mess in my pants

The plan is a RS125 front end with clips, single under slung headlight, cafe single seat, standard pipes but cut off at just under foot pegs.

Well thats the plan anyways! lol

[Guest Guest]

see if you can shoe horn the gsxr-400 usd forks on there, go on.

[BanditMike 0]

I swear they're not speaking English But will keep an eye open for the progress pics

[pugeyed 0]

hmm guest?
whats goin on?

[inch_speller 0]

@pugeyed wrote:

hmm guest?
whats goin on?

I'm sure he was a member.

So thought I'd have a little look in the carbs




Gave em a little bit of a chance.


Next job is to print the pages of the manual and strip em down properly.

[pugeyed 0]

i can get em much cleaner than that lol
just take the jets out and send em over matey.

[inch_speller 0]

@pugeyed wrote:

i can get em much cleaner than that lol
just take the jets out and send em over matey.

Dude if you're sure I'll finish sorting em out tomorrow and send em over.

[pugeyed 0]

yeah no problem

[trebor4460 0]

@pugeyed wrote:

hmm guest?
whats goin on?

Has Airlock left then?
Anyways.. Them carbs are sure crapped up,

[Davehutch-hutchs 0]

@trebor4460 wrote:

@pugeyed wrote:

hmm guest?
whats goin on?

Has Airlock left then?
Anyways.. Them carbs are sure crapped up,

yes he asked me to delete his account after I deleted a post of his that had bad language and attacking the police

[inch_speller 0]

A large pile of crap outta the float bowls


One cleaned


Also I've inadvertently fecked up one of the needles so gonna have to find a replacement. (damn it!)

[sweban 0]

ITCHY wrote:

You rebuild/project Guys amaze me, you turn a piece of junk into summut megga

[haveugot1 0]

Doing a great job there lookng forward to seeing it finished

[pugeyed 0]

seems like you can get em matey.
not sure if this will fit yours?

http://www.ebay.co.uk/itm/HONDA-CB250T-CB250-T-KEYSTER-CARB-KIT-1978-1979-/220850331558?pt=Motorcycles_Parts_Accessories&hash=item336bb49fa6#ht_2018wt_952

[inch_speller 0]

Cheers Mark but don't think thats the right kit.

I have found a company online 22.90 Euros per kit plus postage.

[Gazman 0]

@inch_speller wrote:

Cheers Mark but don't think thats the right kit.

I have found a company online 22.90 Euros per kit plus postage.

Hello mate, I can see you're having fun with this oldie. I'm sure you already know this but just in case it helps, it looks like your bike is a CB-250 G5. You will be able to find loads of Honda's of that period with the same carbs as yours. Gaz

[inch_speller 0]

@Gazman wrote:

@inch_speller wrote:

Cheers Mark but don't think thats the right kit.

I have found a company online 22.90 Euros per kit plus postage.

Hello mate, I can see you're having fun with this oldie. I'm sure you already know this but just in case it helps, it looks like your bike is a CB-250 G5. You will be able to find loads of Honda's of that period with the same carbs as yours. Gaz

One step ahead of ya Gaz

[Gazman 0]

Woops, I should have read the title of your thread before telling you what bike you had. My excuse is, i've been stood at the buffing wheels all day and my eye's are full of
s t. Apology's.

[inch_speller 0]

@Gazman wrote:

Woops, I should have read the title of your thread before telling you what bike you had. My excuse is, i've been stood at the buffing wheels all day and my eye's are full of
s t. Apology's.

pmsl

[inch_speller 0]

Backend stoppa


Win. Now gotta work out how I'll fit it.

[pugeyed 0]

come on man, need some updates?
at least send me your carbs so i have summat to do, bored out me brain here !

[inch_speller 0]

@pugeyed wrote:

come on man, need some updates?
at least send me your carbs so i have summat to do, bored out me brain here !

Pmsl. You've been having some good progress!

Waiting on the feckin postman!

Nothing to update really. Tidied up my shed a bit but I'm sure you don't wanna see that lol.

[pugeyed 0]

anything is better than nothing lol.
ordering a few nuts and bolts up but nothing major , got no new parts on the way for mine apart from clutch spring from the states.

[fr499y 0]

you running pod filters on it? if you are going to, fancy a pair? 52mm as i have no use for them now

[inch_speller 0]

@fr499y wrote:

you running pod filters on it? if you are going to, fancy a pair? 52mm as i have no use for them now

Yep the plan is for pods but thats a way off yet.

Post man brought me the rear brake set up and it was as described



What I didn't think about is that because the drive side of the Aprilia is not the same as the Honda, and I'm running the rear wheel backwards the caliper mounts point the wrong freakin way!!!!!!!!

Damn it.

Any ideas of 125 sports style bikes with the brakes on the near side?

[inch_speller 0]

Pays me to look at a job properly before commenting on how things don't fit!

I was offering the caliper up under the swingarm as thats how I wanted to fit it.

But now I've had time to look at it in the original 'above' the swing arm position I am liking it. I've taken a little time to make a carrier template out of card and will also make a template of the bracket I'll have to weld onto the arm itself.

Picture will follow but im a litle board waiting to pick the kids up from school.

Stay tuned!

[Davehutch-hutchs 0]

@inch_speller wrote:

Pays me to look at a job properly before commenting on how things don't fit!

I was offering the caliper up under the swingarm as thats how I wanted to fit it.

But now I've had time to look at it in the original 'above' the swing arm position I am liking it. I've taken a little time to make a carrier template out of card and will also make a template of the bracket I'll have to weld onto the arm itself.

Picture will follow but im a litle board waiting to pick the kids up from school.

Stay tuned!

I am tuned amd waiting

[inch_speller 0]

First attempt at caliper carrier.



Any thoughts ideas for improvement welcome.

The plan is to have a piece welded onto the swingarm then run 2x mounting bolts through the brackets with a spring between the parts to allow for a little movement.

[pugeyed 0]

hmm, could you use that plate you have made but instead of welding it to the swingarm make it so the rear spindle goes through it then run a torque bar to the swingarm?

[inch_speller 0]

@pugeyed wrote:

hmm, could you use that plate you have made but instead of welding it to the swingarm make it so the rear spindle goes through it then run a torque bar to the swingarm?

Hey Mark

Did think about this as my 'Plan A' with the under slung caliper.

Problem is mounting it at the top there's nowhere to run a torque bar as the damn suspension gets in the way. Personally it is the preferred plan but ain't gonna work unfortunately. So it's plan A.1 (at the moment)

[pugeyed 0]

hmm yeah i see what you mean, you could always make one that goes around the shock would still be nice and strong if you made it beefy enough , gotta remember only 25% of your braking comes from the rear.

or make a bar that goes from the top of your plate to the back of the shock mount, dont know how much room you have back there or if it would be strong enough?

[inch_speller 0]

Problem with any torque bar is the fact that the rear wheel is as fat as it is.

Think I'm gonna solid mount it all.
All I've done is made another template and mount it to the outer side of the caliper.

[madsod 0]

that should work . will you weld it on the swingarm

[inch_speller 0]

@madsod wrote:

that should work . will you weld it on the swingarm

Its cardboard, it wont weld on very well.

I was thinking of selotape....lol

[BanditMike 0]

[inch_speller 0]

Got my hands on some plate. Not overly interesting but it's still progress.





Only had 20mins after work to play with tools as the better half is off out!

But hopefully get some more time tomorrow night.

[pugeyed 0]

just takes ages to cut though doesnt it, oh for a plasma cutter.

[madsod 0]

@inch_speller wrote:

@madsod wrote:

that should work . will you weld it on the swingarm

Its cardboard, it wont weld on very well.

I was thinking of selotape....lol

i did no that but most caliper mount move with the chain , that why i asked .

[inch_speller 0]

Mark - we've got a plasma cutter at work but the workshop is about 10 mile from the office so I don't get over there much.

Madsod - sorry couldn't resist.

I know what you mean but theres not gonna be that much movement (I hope) so going for a solid mount (maybe extend the holes caliper end to allow for a little adjustment)

[inch_speller 0]

Ok so we're changing direction with the caliper mount...again

Found this on eBay for less than a fiver


And it looks like this


I can then with this setup use a torque bar (I know I said there's not enough space..... I'm wrong again)
I could either shorten the original one or bend it a bit to clear the tyre.

[madsod 0]

now that looks a better job

[inch_speller 0]

@madsod wrote:

now that looks a better job

Cheers it does don't it!

Will finish it in black to try and hide it a bit better.

[darkember 0]

Dude remember to watch what tyres you have fitted. With that, I presume is a 160 rear tyre?? It will stick to the road like dried shit to a blanket.

The issue is the frames back then are no way as stiff as they are today, hence the skinny tyres. You raz into a corner the bike will stick to the road but the frame may well melt.

[inch_speller 0]

@darkember wrote:

Dude remember to watch what tyres you have fitted. With that, I presume is a 160 rear tyre?? It will stick to the road like dried shit to a blanket.

The issue is the frames back then are no way as stiff as they are today, hence the skinny tyres. You raz into a corner the bike will stick to the road but the frame may well melt.

It's a 150 rear but will be replaced with a 140.

I was made very aware it the difference in the old tubular steel frames verses ally ones when I rode my old 350lc back to back with my mates nc31.

Bit this thing isn't being built as a race bike.
It's all about the looks baby!

[inch_speller 0]

Rear break... Done

Bracket for torque arm cut, shaped and welded on.
Torque arm shortened.