@declan thanks for clearing that up

@DTR-NSR Yeah true, early clutch covers have different oil pump housings.

@HondaLover Yeah try giving me a photo of the pump, not the cover. I actually don't know how to adjust the early type pumps. The newer types you can just adjust a threaded bar. I had an early type pump just inject way way too much oil. Never figured out how to fix it, just deleted it in the end.

@NINJA Hey, that's looking very tidy!

Might sound silly but you are using a genuine head gasket or an Athena one yes?

@Calum I only posted that link as it was a complete kit, individual parts may be sourced for less cash in total? I just wasn't sure what/if he had any parts already???

Stuff inside the engine cases I always use loctite. Last thing you want is a screw coming loose and rattling around your clutch or something. External stuff I don't bother so much, as that's easy to enough to spot and rectify.

@Bluestoesonnose Piccy's

@Bluestoesonnose So the VHSA Carb was standard on the TZR Belgarda models that ran the 3MBP barrel. Which was a modified 3MB setup. That was my logic behind carb upgrades.

Cheers, I'll get them off to Tony for some port work and squish band work

@Bluestoesonnose If you can you should do some dyno runs with each head on, just to get a clear picture of the difference each head offers and share your findings. As that will give us all a direct comparison and clearly show the benefits each head has to offer.

Always good to have spares!

You'll need the DTRE/TZR Crank cases, TZR/DTRE Crank, fly wheel stator CDI, pick up and loom. Basically, you need a DTRE/TZR Engine.

No sealant, just make sure the mating faces are completely flat. https://dt125r.co.uk/topic/11/how-to-i-gentle-skim-your-head-barrel

@Sgt-Robuck-5 Sounds like a bigger problem to me. I highly recommend Athena and of course genuine. If the surfaces aren't flat then no gasket will seal. I always recommend a quick homemade skim on the head and cylinder before refitting.

@oldman lovely!

Yeah not sure why, ive seen 2nd hand cases labelled 3BN 00, 01 and 02. Maybe its the place of manufacture, or just subtle changes in materials or something? Ive noticed the 00 case has a couple of shallower indents on the outside of the case, and a couple of radius corners are subtly different. Could be a different manufacturer

I think it's one of each bud. Think. To be fair once you split the engine it should be obvious. They will be labelled appropriately.