Just had this lit arrive in the post, they're being kept in the spares cupboard though as the original piston is well withing spec.

Just got the engine parts back from vapour blasting. The pictures don't do these parts justice, they are very clean. http://i94.photobucket.com/albums/l90/juanv6/Mobile%20Uploads/IMG-20150310-WA0004_zpspcao1iuc.jpg http://i94.photobucket.com/albums/l90/juanv6/Mobile%20Uploads/IMG-20150310-WA0005_zps...

I meant the closest trx piston is 66.5mm, ar is 66.4 with a, b & c kits.

66.5mm aren't they?

Hey all. Just wondering what options there are about for rebuilding the AR Carb. Is Honda the only place to get the rebuild parts or some parts shared between other khein carbs? When rebuilding what should I be looking at for wear? seals should be replaced ofcourse but what about jets and needles et...

It may have been a waste of money, your original piston seemed fine, just like my spare one, just put it back in....................... I was just covering all bases, I will most likely be using my original but this piston popped up on ebay and I couldn't say no for £85. Seems it was a bargain and ...

Thanks for the confirmation

Apologies for the poor quality.

I have just bought and received a piston that was some as being nos genuine Honda. It's arrived in the original box with the correct part number but it a number of differences to the piston that head been removed from my ar. There are quite a few differences in the casting but what really stands out...

No problem, yep still got it, I'll give you a ring when the cases and cylinder are back.

Thanks Andrew, the spares are deffinately coming in handy now.

The vapour is getting done by blastcoat over in Caerleo. Near Newport.

Hopefully should have them back in a week or so.

Just set the frame up ready to fit new yokes & showa ssf forks, adding with mocking up the crf250 swingarm.

The cases in the frame are spares , re original cases have gone for vapour blasting.

The actual bearing 91005-KAE-741is showing as discontinued now, are you using an alternative or have you got genuine Honda?

I'm not too sure what make the bed is, probe head is Renishaw though.

Aswel as trying to get my head around cad packages I have also been collecting all the parts needed for the rebuild. http://i94.photobucket.com/albums/l90/juanv6/Mobile%20Uploads/IMAG0393_zpsoz4yt2pr.jpg http://i94.photobucket.com/albums/l90/juanv6/Mobile%20Uploads/IMAG0401_zpsvinqcd0t.jpg More upda...