I spoke to the company who used to do it in the midwest (can't remember the name off hand), and the guy on the phone said that it only sticks to cast iron bores about 50% of the time, and they can't predict when it will and when it will not. There is no warranty for the work, but he was very honest about it all. He said it mostly works for the guys who like to talk about all the hot rod upgrades they did to their motor.
I would try .040. Unless you intend to seek WOT and extreme rims, this should work well. I don't think us Norton guys hammer on them after investing$$$. These bikes we cherish and keep garage and run will live on. OR find another stock bore cylinder. Then these new bore and .020. BTW, I think. 060 pistons for 750s were available.....
The reason why I was inquiring to Boretech (I remembered!) was I have a cylinder that was overbored by .004". As in, .004" beyond the .004" piston clearance. Must have been an expensive mistake for someone. Boretech said they could plate to whatever thickness you reasonably wanted, but couldn't guarantee the adhesion. If Nicasil plating is like any other industrial plating I've come across, it needs final finishing after plating, so it would probably fill small voids as it's cut back to final dimensions. For the price they wanted, you could get a couple brand new cylinders from Andover with guaranteed basic function, but that service is no longer available. Seemed like a good option for bikes that have no other option, but that's thankfully not the case with our bikes.
Exactly. I had cast-iron lined two-stroke jugs plated from Millennium Technologies, three different times they failed. Cost me a bundle, a beautiful set of ported cylinders, were destroyed the third time they tried to plate them.
ouch
Wide Open Throttle and extreme rides...basically if you were going to ride it as a survivor that you put blood, sweat, and tears into (and couple of VISA cards, and overtime). Or you were going to race it.....on or off track. I'm almost 70 and got away with a bunch stuff....I own 7 bikes, 3 commandos that I ride fast sometimes, but try not to abuse them. When tempted to see the tach spin up, it should have $$ @ anything over 6500 IMHO. top end is $1000 easily these days.
