Hey everyone..
I acquired another 750 (a K6) recently as part of a deal with a 76 Wing and an 81 CBX..
The bikes came from an old guy who hasn't ridden them for quite a while, but has supposedly been starting them regularly. They all run, but need some work and definitely some TLC.
Visually, everything seems not too bad other than some surface rust on the chrome and an awful black paint job on the engine, which is peeling badly.
The bike hadn't been registered for many years, so getting it legal was a bit of a PITA, but all done now.
First job was to attack the chrome with Aluminium foil and WD40, and mostly it has come up well. The indicators still look pretty scruffy, but I can live with that for now.
Next job was to change oil and filter (Air filter looked good, just a clean for that). Oil was very black, with a little sludge. No problems other than the oil filter washer was missing - sorted.
I checked over the brakes, and the rear seemed OK, but the front pads were disintegrating, although plenty of meat left. strange. Also noted that the split pin was missing from the stationary pad.
New EBC Organic pads ordered and fitted.
Also noted that there was no split pin on the rear axle, and that the thick washer that should have been behind the retaining nut was absent - which meant that the split pin didn't actually lock into a castelation on the nut. I'm having trouble finding that washer - anyone have a link or one they can sell me?
Finally I felt it was safe enough for a test ride (other than the old tyres).
Performance was down quite a bit on my K2, I felt, but it sounded great.
Back on the bench, rear wheel off for a new Tyre. Adjusted the tappets, pulled the plugs, which were fairly wet - I suspect the choke worked it's way open partially during the ride, which might explain the performance also. It is very loose in operation, haven't looked at why yet. New NGK plugs installed.
I poked my boroscope into the plug holes, and can see hone marks on the bores - which aligns with his story of the motor having been rebuilt and not too many miles on it since. I noticed a couple of vertical scrapes on #4, but they seem light and I didn't notice any smoke on the test ride.
There's been a bit of wiring butchery installed, which I'm working through to tidy up, but everything works OK as far as I can see.
Also, the throttle cables and brake pipe were misrouted - I've fixed the throttle, and ordered a new rubber boot for the master cylinder as the one on there is split, so I'll fix that later.
Next jobs are to get the wheel back on, replace the exhausts (after a good clean up), and balance the carbs.
Exhausts are in great shape, they were evidently replaced in the last few years.
Overall, I'm fairly happy with the bike. The only other thing I noticed on the ride was that the steering felt a bit loose, so I'll check the headstem bearings - hopefully they just need torquing down a little.
I'm thinking I'll not do much visually to this one, and leave the patina as-is other than tidying stuff up a bit and trying to get rid of the black paint from the engine - I have a small hand-held sand blaster which I'll get some glass media for and try that I think - unless somebdy has a better idea?
I'll take some better pictures shortly.
