arcticXS

That's exactly what I was planning to do, except not cutting the 45 degree, but a 30 degree where the 45 ends, stem side. To hopefully...

Thanks for a thorough reply 😁

Thanks, great input!

I have posted a little bit about my XT250 project, including ports/ valve seats and cam, but this question may relate just as much to...

Best, as in best aftermarket ignition available today, would be neither Boyer nor Newtronics. But Vape (formerly known as Powerdynamo)...

Definitely for special purposes. I once visited the Kværner hydropower machine shop while they still were in Oslo. Their vertical turret...

Hmm. So what is the operating temperature for a cylinder? Water often seems to boil off, at least on other bikes. I just tend to think...

S Sound like a loose crimp fit, or?

1/4" UNC?

Was your piston stop straight and concentric with the spark plug threads?

Thought I'd share how I solved the issue of attaching a degree wheel to my VAPE rotor. I guess the pics are pretty much self...

I am now working a bit on the XT250 head, and found a couple of things I wonder what to do with (or leave as is. One is a notch from a...

I wonder why there are no aftermarket 80 or 81 mm Nicasil cylinders. That would bring that part of the XS into at least 80's/ 90's...

Ok, but are they Spec 2, by Gary Shumake, or something like Denco replicas? Or designed from scratch?

Spec 2 pipes?