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CB650C Recommission

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Nurse Julie:
I think it was a Saturday but still plenty of bikes around. I did work out it was close to Crich as saw the signpost.

Clunker:
When I left Crich I was tempted to take a cruise through there just to see what was occurring but my belly was getting the better of me, see if it was still busy. If its nice tomorrow afternoon (Sunday) I might just fire up the Zephyr and take a ride up there. I'll have my camera with me if I can get there so if there is owt worth looking at I'll post some pics in Out and About.

Clunker:
Carbs went in the ultrasonic cleaner this morning, rebuilt this afternoon. The Taiwanese rebuild kits were a bit of a joke, the gaskets for the carb tops didn't fit very well plus a hole for the locating peg was in the wrong place so I had to modify them with a hole punch. There are plenty of O-rings in the sets that don't fit anywhere on the carbs. In the end I decided not to risk using the jets or float needles as I'm pretty sure they'd have caused problems later on. Luckily I bought a partial set of carbs from a CB650Z a couple of months ago so I robbed bits from them to get the job done. I also had to figure out the choke mechanism worked as I hadn't noticed before that it didn't actually work, looks like a PO didn't have a clue either so he just chucked the parts on anyhow. First pic is me operating the choke pulley but nothings moving. Second pic is the top gasket fix and the third is the job done.

Clunker:
The only parts that I did use from the rebuild kit were the top gaskets, the float bowl gaskets and the mixture screws, springs, o-rings and washers as this bike was a US import, the mixture screws had blank tops that had a slot sawn into each one. When I first stripped the carbs only one screw had the o-ring two others only had the spring and the last one was just the screw. I still have to make an o-ring for the number 1 carb air cut off valve chamber, I figure a tap washer and my hole punch should fix that. Forgot to mention in pic 1 above, can you spot the missing part????

Clunker:
Carbs took about 15 minutes to put on with the ratchet strap method. Bike fired up straight away but petrol poured out of number one carb overflow, a sharp tap with a screwdriver handle to the float bowl cured that. Petrol dripping from accelerator pump, B*&^%$*£! as the little girl says in the VW advert! There weren't no sodding o-ring in there when I stripped em! I'm really surprised that this bike ran at all when I got it, there were stains on top of the engine case where fuel had been dripping for years. Anyways, back to the story, too lazy to be taking the carbs off (big idle mistake) I opted for a bit of keyhole surgery with my 90 degree screwdriver and loads of enthusiasm (beer). Figured if I could just lower the bowl a bit I could slide an O-ring in with the tip of my finger, I just happened to forget how thick my sausage like fingers actually are. I was trying to not disturb the diaphragm......................well I got the o-ring in and got the bowl back on, slight drip from accelerator pump, think I dislodged the you know what (not spelling it again). Carbs are gonna have to come off again but at this moment in time I just CBA!

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