Mighty CB125t does have its limits

**agent75** · 11th August 2009, 20:01

Well, i like to do things a little differently so i decided to break a sleeve and drop it onto the crankshaft. head looks quite good but barrel and piston have seen better days ... see photos. I'd actually finished the race.... bloody enjoyable race too... then heard a few clangs. surprisingly still had a touch of compression

I'm on the lookout for a new barrel if someone has one kickin around....... or an FXR...... or both..... maybe if someone wants to throw an FXR in with the barrel??

**timg** · 11th August 2009, 20:08

Ouch! That's two CBt's that shat themselves on Sunday.

**gav** · 11th August 2009, 20:18

Ya better be quick!
http://www.trademe.co.nz/Trade-Me-Mo...-234320710.htm

**agent75** · 11th August 2009, 20:30

well i just did the obvious and hooked the lip of the sleeve out because now the lip and the rest of the sleeve arent mates anymore. when i look at the cracked surface of the sleeve its carbed up qute a lot so it suggests that that had happened a wee bit earlier... who knows when. maybe ages ago and the piston is unrelated. dunno. anyone seen this kinda thing before??

**dangerous** · 11th August 2009, 20:43

never seen that done before... christ to move a sleave takes a shit load of PSI, thats nuts man... job well done.

I'd say if the sleave shows damage at the bottom, evadance of hitting the crank then the top ring rose above the broken sleave and broke up doing that damage to the piston, I asume the valves are ok if the head is? bloody amazing if so.

**Kickaha** · 11th August 2009, 20:57

Cliff Bond in Ferry rd can machine and fit a new sleeve but it'll be around $300-350 going on what they quoted me

Or an Alloy sleeve with Nicasil coating about $800 :lol;

**Yow Ling** · 11th August 2009, 21:09

Buy the black FXR you know you want to !

**Kickaha** · 11th August 2009, 21:10

Originally Posted by Yow Ling

Buy the black FXR you know you want to !

No, No don't go to the dark side to many have succumbed already

**dangerous** · 11th August 2009, 21:14

theres every chance I can get you a barrel and 2x piston kits for under $200 a rebore will cost about $60... might be able to find exhaust valves if needed, inlets are rear.

**TonyB** · 11th August 2009, 21:19

I've got a pair of 0.25 OS piston kits for $130. Thats all I have left for the CB-T....unless you want rings.....i don't think just rings will cut it

**Bren_chch** · 11th August 2009, 21:21

Great job! glad u finished the race on it, did you have ear plugs in?

which other CB shat itself?

**Kickaha** · 11th August 2009, 21:23

Originally Posted by Bren_chch

Great job! glad u finished the race on it, did you have ear plugs in?

which other CB shat itself?

CMAC dropped a valve, he didn't think there was damage to the head so a new valve and he should be sorted

**agent75** · 11th August 2009, 21:25

Originally Posted by dangerous

theres every chance I can get you a barrel and 2x piston kits for under $200 a rebore will cost about $60... might be able to find exhaust valves if needed, inlets are rear.

keep me posted there Dangerous. i might pm tony now.

How much is the black beast goin for? What's been done to it?