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CR 750 for road use build

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philward:
Cycle x 4 - 4 exhaust is not a CR rep exhaust - its just a 4 into 4 exhaust. if you want a 'replica' exhaust, the Simon Tappin exhaust is what you want - its fitted to this Australian built rep
In my opinion, the quality is excellent - as Steve says you need to speak to Simon - he is an expert on CR750 and is very helpful

captaink:
A bit of an update on the engine build.
All the 6mm threads had a tap run down them to ensure all would be a good fit.
Where the process of aqua cleaning involves minute glass bead, I was extra careful to ensure all this was washed out and had to run a M20 x 1.25 tap down the oil filter thread to clean out.
I'm happy it's 100% clean.
Having settled with main and rod clearance of 0.040mm using black shells throughout and the rods torqued to 14.5 lbs its all together
Cylinder barrels are back from being bored out 836cc with a big bore kit and the top skimmed and a nice job they have done again.
After checking the ring gaps in the bores there all 14 thou on top rings and 16 thou on the middle and oil rings. So I'm happy with that.
The cases are now together.
New drive chains and cam chain

captaink:
Cylinder bored and skimmed.  :)
Yes I know the tip of one fin is broken  :'(

CR21:
Looking great, nice finish to the casings as well. How did the general assembly go of the engine, was it relatively straight forward?

Out of interest did you have the casings ultrasonically cleaned after the vapour blasting process and are you going to leave them like that or paint them? I have always thought that the vapour blasting (and sometimes vibratory finishing) leaves a 'fresh cast' look, and have gone down this route with several other restorations. Until I bought the CB750 donor bike I was unaware that the casings were painted, not sure If I want to paint mine...

The cylinder work looks smart, is that a UK company? Also what pistons are you running?

Cheers
CR21

Trigger:
Even after the engine cases are clean, you will still have to paint them as oxidation sets in fast. Honda cast alloy is not the best on it comes to corrosion.

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