Discussion in 'Norton Commando Motorcycles (Classic)' started by TravNorton, Apr 25, 2010.
Do the pipes "twitter on the over run"?
I have to laugh at the understatment of "etc, etc" Your bike has a little more "etc" going on than most...
On the original picture I noticed you swapped the rear brake drum to the timing side (like I did on my bike) I assumed that was to have the ability to chose different sized rear sprockets to change your final drive ratio, then BAM !! (new picture) and it's a belt drive... That's really nice.
I always liked the SS pipes too. Great looking bike. Obviously a lot of work went into the trick stuff.
Don, could you post some details on how you did the left shift conversion? You said it isn't a MK3 gearbox, so how did you modify the inner cover and shift mechanism? I'm looking to do a left shift conversion with my Quaife 5-speed, and yours is the tidiest one I've seen so far.
Ken, MK3 shell, inner cover and shift shaft, biggest hurdle which probably wont concern you is modifying the outer cover.
as you would know the MK3 shift shaft exits the transmission on an angle. the crossover shaft is not 90 degrees to the
centerline of the bike, so the outer cover had to be rebushed and its bushing machined at the same angle.
I dont use the MK3 gears on the left side. my cross shaft exits the tranny and then exits the primary covers (bushed)
There was a LOT of fiddling about with the outer cover and I wouldnt want to do that again. Why cant you fit the Quaife 5 speed
into a MK3 tranny?
Well, I finally got a front mudguard fitted that (hopefully) clears the tyre at speed.
Also trying out Maxton shocks and fiddling with the needles to match the 2:1 pipe.
I definitely like the neat looks and weight saving of the pipe. It’s not quite right with feeling yet though...
Real nice bike. I always admire it when you post pictures.
PS A red frame would really set off the blue tank
Your bike looks gorgeous! Please reveal some details of the final drive, or please point to a location where this was described in the past. There is no tensioner despite the long run?
Knut.not sure what you mean by no tensioner. The standard length swing arm has the 2 standard type axle adjusters.
Although they have fix nuts attached so when the adjuster bolts have been tightened or adjusted back
as far as they can go then the wheel is correctly aligned and the belt correctly adjusted. The belt is a
Gates Polychain and will never need adjusting. it is not like your average rear belt fixed to Harleys etc.
OK Don, thanks. Obviously I've had a misconception of the belt's mechanical properties. Which belt size did you select? What about the front and rear pulleys - did you make them yourself or adopt pulleys from another bike? The rear pulley is really impressive! If you made them yourself, which material did you use?
What a beauty eh!
This is how my "Roadster" looked just after repatriation from Spain.
And wossit look like now then...? Bet it has a nice shiny front mudguard...
And now back with the rather more ‘sociable’ and relatively silent silencers!
I dulled the fab cNw footrests and hangers with scotchbrite, they look even better to my eye than when they’re shiny...
Strangely enough yes. lol.
It wasn't just the broken gearbox that were clues to a tough life, I mean that can happen to anyone. It was more to do with the mix of metric fasteners, some even had metric nuts on imperial studs and bolts. ..
That looks nice now Cab.
Shame about the black mudguard in that pic tho
Finally got a VIP membership so I could post photos. Have owned this '74 for 15 years, improving on it bit by bit.
LANDSDOWNE Dampers, IKON shocks, TriSpark ignition, cNw electric start kit, cNw dual coil, 3 phase alternator,
madass oil pressure switch, Mikuni single carb, Dave Taylor head steady, Vintage Vendor paintwork, LED headlight
bulb, GIVI wind screen, etc., etc. 24,000 miles on the original bore. The only road failures I've had in the 15,000
miles I've ridden it are: water in the fuel, flat tire, TriSpark failure. This forum has been of immeasurable help
to me maintaining and improving this and 2 other Nortons I have owned.
My 750, now with convenient push-button starting (due to my worn out right knee):
Purchased off ebay 14 years ago for $3600, complete with cracked fibreglass fuel tank. I have quite a bit more than that invested in it now of course.
Very nice, where did you find the bags?
They came with a Royal Enfield Bullet that I bought years ago. The Bullet is long gone but I kept the bags!