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They are the original 35mm forks but completely re-worked internaly and external. They are pretty special, You can see here>

Thanks Raymond

A question for any fork experts out there! On the xs650 forks (1979) there is a teflon coated bushing at the top of the lower. My question is should there be another bushing on the bottom of the stancian?

Thanks, it was worth my effort and money in the end. Mild street cam, carbs are TM34 flats with 55mm Manifolds with 57mm DNA filters

Thanks Dom, yea I'm pleased with the result. It sounds mega!

That's a shame, here in the UK Heiden have given me great support unlike people in the UK I've had parts from. Thanks, I will also be curious to see what it makes.

Thanks, it really has made life alot better like this, especially with a modified engine with a few unknowns along the way to figure out.

750cc using Heiden Barrel with Wiseco modified (flat top) ceramic top pistons. Comp ration about 9.6:1 with a reading of 180 psi each side.

Yea that was my observation also, that they are not in the lines perfectly. But as you mention, the question would be how much movement is worth 3°. I have access to electronic tech people where I work that could straighten them up aslong as they could also put them back if needed. Also the way...

I imagine not many people check the number 2 when everything is set to number 1 such as cam and ignition. I will run it and my feeling is it will be fine as it's set now. I was speaking to somebody the other day with a xs650 big bore engine in a classic racing sidecar and he said it was 76bhp...

Thanks for the good info, this system is nice and compact and I had a special Titanium centre rod made that goes through the centre of the cam so ideally I would like to keep what I have. Yes, as you have thought / suggested, I have set number 1 to 35° so number 2 fires at 38° during full...

Yea I think so, almost like its a nats cock out.

Rephased crank, wiseco modified ceramic pistons, kibblewhite valves and guides, Titanium ignition rod, 5th over drive gear, all bearings and seals are new. Basically a brand new tuned engine. Head is tuned also. Spec is to much of the top of my head.