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Clares 250 has run 2.75 front and 3.25 rear since 1993 . At the moment we have Metzeler ME22 front and rear. These suit the bike well and did help to cause a certain well known 500 rider and former chairman whilst struggling to keep up on one twisty mountain road to use one of his well known excuses...

I seem to have an original crankcase breather that is made of fossilised amber and rock hard. Is it 19mm i.d? as the crankcase spigot measures 18.4mm?
cheers
Mark

Mark Nice to see more 250s, From the pictures you had at the AGM it looked well cared for. strange thing here ours is a W and was first reg in July 1981, according to DVLA BOT515V was reg in Dec 1980 which means it would normally be a W not a V. I guess the allocated number was a long time in being ...

Hi SoloFrenos, Sorry for resurrecting an old thread.. Did you find out the cause of the seizure. I have exactly the same seizure pattern on 62.4 mm Vertex piston in standard steel liner after 3000 miles on front cylinder only . I think the seizure pattern is almost a four point seizure at 45 degrees...

Hi, Whilst it is most likely that your problem will be carburetor related it is worth checking this point, but really only for on the road flat spot, poor midrange or poor starting. Any way some information here may be of interest to other readers. There used to be two original Ducati-Electrotechnic...

Are they for the crossover linkages for right to left gearchange and left to right brake swap?
Mark

For carb balancing on Morini its better to use the carb tune u tube manometer than vacuum gauges, its much easier to see the throttle synchronisation, which as penman says is needed to get good progression. Just an odd thought you do have matching transducers (i.e same type), there are at least 4 ge...

I replaced the fork seals on a 250 2C using the parts from NLM last weekend, no problem. The parts are 31.7 x42x7/9 as mentioned previously. 31.7 mm surely that's 1 1/4 inches! Fork capacity is 160cc I am using 10W (castrol) from Halfords.
Mark