CB125 destruction (rebuild hopefully)

[mattish]

Hey,

Welcome to my CB125 destruction, place your bets now as to if it will ever get put back together and run again

BEFORE (in all its ratty goodness):

https://mjleonard.myby.co.uk/pictures/bike.jpg

AFTER (in parts):

https://mjleonard.myby.co.uk/pictures/cbstrip/cb3.jpg

https://mjleonard.myby.co.uk/pictures/cbstrip/lump1.jpg

https://mjleonard.myby.co.uk/pictures/cbstrip/cylhead.jpg

https://mjleonard.myby.co.uk/pictures/cbstrip/carbs.jpg

https://mjleonard.myby.co.uk/pictures/cbstrip/micron.jpg

My plan is to remove any loose rust from the frame and hammerite it. The engine is going to be rebored and reassembled.

Watch ebay for cb125 in parts if all goes t1ts up

[Whosthedaddy]

Good luck fella

At least the exhaust is shiney
____________________
Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[mattish]

Its only shiney because I spent an hour with the wire brush and autosol trying to hide the rust and crash scars

Thanks for the luck, Im going to need it

[satans_BIG_helper]

did the top end come off like i said in IRC then ?

[Gazdaman]

Exhausts look really good with a bit of elbow grease! They looked fully rust tastic on the downpipes.

A rebore and some hammerite and it'll be a damn good bike again. I'll donate some HRC stickers when it's done.

Gaz

[mattish]

Ta gaz and satan. Yes the cyl head did come off pretty much as you said

update:

https://www.mjleonard.me.uk/pictures/cbstrip/cb4.jpg

[mattish]

Yet another update:

https://www.mjleonard.me.uk/pictures/cbstrip/frame.jpg

[jay_666]

Kool, keep the pics coming
____________________
CBT - Done | Theory - Passed | Test - 4th Oct [PASSED!]
https://www.bikepics.com/members/jay666/

[NSR Mick]

I had 3 CB125's back when i was a yoof, none as clean as yours is going to end up. Keep at it mate.
____________________
If you dont like the way that I ride.......Stop trying to keep up!!!

[Whosthedaddy]

Feck me, your so much braver than me, theres like nothing left but a frame and a shed full of pieces
____________________
Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[mattish]

Anyone notice the last 2 pics Ive posted look like either a grasshopper or a trex ?

[satans_BIG_helper]

good ole black hammerite i use it on all my frames works wonders

[Gazdaman]

https://www.gaz-racing.co.uk/images/MZ/Full/DSCI0104%20(Small).jpg

Uh oh, striking resemblance...

There'll be flowery seat units and clip ons before you know it!!

Looks really damn good hammerited btw. Did that grab rail come off?

Gaz

[mattish]

The grab rail was an utter **** but it came off with the help of a impact driver and a rather large hammer

The problem I have now is one part of the suspension linkage is seized to the swing arm

[Gazdaman]

Meh, seized linkages add character.

Make sure you use plenty of grease and copperslip putting it back together.

Maybe invest in a big box of stainless nuts and bolts.

Gaz

[mattish]

Problem is the part thats seized on is held on with two large allen key bolts, and Ive twisted 2 allen keys so far trying to get them out

[satans_BIG_helper]

get a blow torch and put some heat on them then try a allen key

[mattish]

But wouldnt that melt all the o-rings

[Rookie]

If you can saw and cut through them, cut one of the allen keys so you've only go the long bit left, stick it in a drill, tighten it as much as humanly possible, and try that. If not, penetrating oil should help.

I liked that bike! It made my bike look good by comparison!

[mattish]

Hammerite addiction:

https://mjleonard.myby.co.uk/pictures/cbstrip/hammerite.jpg

Evicted the guinea pigs:

https://mjleonard.myby.co.uk/pictures/cbstrip/mypet.jpg

Most things electrical:

https://mjleonard.myby.co.uk/pictures/cbstrip/electrics.jpg

[Nath]

[mattish]

Guess its off to get a socketed 8mm allen key for use on my impact driver then The ammount of cash Ive spent on tools last month is insane

[mattish]

Breaker bar and the 8mm socketed allen key still wont get the damn seized linkage bolt undone Suggestions?

Im taking the lump down to the engineers tomorrow to see what they can do, Im thinking rebore and skim.

Pictures Update:

Another light coat of paint on forks:
https://www.mjleonard.me.uk/pictures/cbstrip/forks.jpg

[mattish]

Re-honed barrels:
https://www.mjleonard.me.uk/pictures/cbstrip/barrels.jpg

Pistons:
https://www.mjleonard.me.uk/pictures/cbstrip/pistons.jpg

Suggestions on how to remove the carbon buildup??

[NC30UK]

blunt chisel and a bottle of redex. dilute it with some petol to make it last longer.