H2b parts and advice needed

[BanjoDeano]

Hiya Guys, i have an H2b that started making a lot of gearbox noises, upon stripping it down, we found that the second gear output shaft and second gear drive shaft were all chewed up, part number 13130027 and 13131033 i believe, also the drum-gear change was broken at the end with the pins, does anyone have any advice where i may be able to source these parts, or does anyone have any spares? also does anyone know how the damage may have occurred? i wasnt riding it like i stole it
Thanks in advance Banjo

[Mitsui Spy]

Don't know much about the H series myself but I daresay someone will be along who does. Bit quiet on here at the moment but we're slowly luring them back from Facebook.
37 views and no answers yet. Come along chaps!

[BanjoDeano]

Don't know much about the H series myself but I daresay someone will be along who does. Bit quiet on here at the moment but we're slowly luring them back from Facebook.
37 views and no answers yet. Come along chaps!

Thanks for your input James..

[malc87]

Heres the gears.
You could get them made in the UK at Nova but its not cheap.

I asked Bill Bristow what he thought after sending him your text on here via whatsapp and he said Possibly a broken circlip in the box? He said its alway hard to determine what went first in a blow up?

https://www.ebay.com/itm/230998435545?e ... Swwo1Xcoxa


https://www.ebay.com/itm/284418824583?h ... SwG21gWeZY

[Mitsui Spy]

Good work Malc.
Am I right in thinking an H1 gear box cluster can also be used?

[Wolfie]

The H1 Gear set will drop straight in except for one of the end bearings (easiiy swapped across), you can't mix and match though, it's all or nothing.

The Forks have different part numbers, although I couldn't measure any difference when I was building the H2 box.

I think the drum is different, but the KH500 one did fit in mine (with all the KH mods) someone else may know better..

[malc87]

Ive found the drums and selectors to be the same too Graham even though they are different part numbers . One of the Selector forks is wider and that has to go on the far right with the engine upside down.
The FULL H1 box does fit no problem in a H2 and like you say you have to change the bearing next to the clutch for the H2 larger bearing.
You also have to put the gear of the H1 internal kickstart assembly on to the H2 internal kickstart assembly to work the H1 box.
Dave Higgs used a H1 box in his H2C back in 2010 with no issues and he DID know how to thrash a bike!!

[Eric]

Dave Higgs used a H1 box in his H2C back in 2010 with no issues and he DID know how to thrash a bike!!

What do you mean Malc he DID know how to thrash a bike, doesn`t he do it anymore.?

[malc87]

I think he has calmed down a little bit now
One of the fastest boys I have EVER rode with

[Triple Parts]

I think he has calmed down a little bit now

You do know that he has just bought another MT09 SP?

[malc87]

Oh dear!

[BanjoDeano]

Right guys....thanks for all the input, i really do appreciate it, and the links as well, it gives me something to ponder over, hopefully it should be back on the road soon, i will keep you all updated...cheers

[malc87]

I have H1 gearboxs if you want to go down that route

[BanjoDeano]

I have H1 gearboxs if you want to go down that route

Cheers Malc, thanks very much for the offer, i am gonna have a think about it, and see which is the best way to go...not sure at the moment.
but ta very much..