Dezza

Yep, U = 1000-1100; R = 700-750 or something like that. Whatever the range for each number, 750 = R; 1100 = U. Motors bigger than 1100 like 1100 slingshots, Blandit 1200s and EFEs and the letter is V.

What class would an 1100 have been raced in during 1986? Assuming the 1986 bike was being raced from the off rather than being converted at a later date.

Even if the riveted-on VIN plate is missing, the frame number should also be stamped onto the side of the headstock.

This bike looks familiar. Was it featured in Performance Bikes many moons ago? If it's the bike I am thinking about something very similar was for sale on Eblag a year or so ago. It stands out to me because it has WP forks and Spondon discs.

Most things do I'll get me coat.....

OK, many thanks to all. I have the inlet rubbers for both so I will probably try first the carbs I have

I have a 1200 Blandit motor to go in my Spondon frame as the original motor, which is made up of slabby 750 and 1100 bits, needs a rebuild. The bike came with some 1100 slabside carbs that are in good condition so I just need to know if using them will bugger up the running of the Blandit motor. I will be getting other carbs eventually but my priorities are with the cycle parts. If I need different carbs sooner rather than later then I can keep an eye out for a set otherwise they can wait a while

Will the carbs from an 1100 slabside work OK on a 1200 Blandit engine? What is the likely outcome of doing this? Cheers in advance

Anything in non-SI units sucks, except maybe tyres. The diameters are in imperial but the widths are in metric on the SAME tyre but wierdly this does not cause confusion

Sounds small - the exhaust bolts on my EFE head are 8 x 1.25 and I would have assumed the ES was the same. I use stainless with a bit of copperslip on the threads and all still original.

What is immediately obvious is the lack of cars, lorries and potholes in 1992 compared with nowadays - even a clapped-out CZ125 would be fun to ride along some of them roads

I think the speedo cable on it snapped about 50,000 miles before it was laid up with the carbs full of fuel 10 years before he tried to start it. This might explain why it's only running on 2 cylinders

I think he means he wants to dump the airbox on a 750W, and wants to know how to alter the carbs so it doesn't completely bugger up the running of the engine.

I thought M-Unit Blue was Frank Zappa's youngest kid. I'll get me coat......

PTFE plumbers' tape works fine on the threads of a Pingel tap, as is stated on the destructions given by Pingel. Presumably this stuff is petrol resistant. I had reservartions at first when I used this when fitting mine but have never even had a hint of a leak (yet....).

Just got 2 FAG 3021s for 45 quid for the linkage. There are cheapoer ones but, and I am not kidding, these are used on the wheels of golf trollies. Golf, FFS, a good walk spoiled etc.etc.etc.

Warm the carb rubbers with a hair drier or a hot air gun set on low before removing/refitting. With practice, you can also stick them in boiling water, dry them with paper towel, then put them back and fit the carbs before they cool. The rubbers will probably have hardened over the years and new ones cost a fortune.

Has great potential. Replace seat with stock?

OK, I now know for sure that I need to source two new metric roller bearings, a new imperial spherical bearing, and some new nuts and bolts in both metric and imperial

That probably explains it then. I am still curious to know if this is a general trend with Spondon frames though.

All look great and varied too. I like those werks exhausts that grumpy 1260 is flogging that are on a couple of the bikes.

Does anyone else have any imperial fasteners/bearings on their Spondon? I have just got back to faffing about with mine and the suspension linkages have a mix of what appears to be metric and imperial What is clearly an old corroded spherical bearing pressed into one linkage is definately not M10 nor is it M12; it's inbetween, 7/16 I think. The rod end bearing on the same component is also the same size as is the bolt. The other parts of the linkage though are all metric as expected. This makes my head hurt as I am not American. I am going to have to fish out my grandad's thread gauge from a box of ancient tools in the shed, and he died in 1969.

Pics as requested

This reminds me of the Bob Monkhouse joke: "I've just done an awards ceremony for the mobile phone industry and it was the first time I heard a load of grown men arguing over whose was the smallest." I'll get me coat.......

re: pipes. Maybe someone made the builder of the bike an offer he couldn't refuse.