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have now taken off & cleaned carb three times but each time after a few minutes running it gushes petrol. I have read a fix where you drill though various ports on the carb as suggested by David Ryan (details below) has anyone actually done this? If so did it stop the leaks??? YOU NEED: 1. Flat blade screwdriver to remove carby. 2. Phillips screwdriver to remove float bowl. 3. 6mm ring or open end spanner to remove main jet. 4. 10mm socket to remove needle and seat assembly. 5. 2mm drill. 6. Loctite 3805 to fill holes. 7. Flat file to flatten brass filling sphere. METHOD: 1. Remove carby from bike. 2. Remove float bowl. 3. Remove main jet. 4. Remove needle and seat assembly. 5. Flatten head of brass sphere at C

cheers on close inspection I found 26 683, G3 61. in different places on the carb body. Clive

Help anyone know which model mikuni carb is fitted to my beta rev 3 the year is 2000 thanks Clive

hello all any ideas of typre pressure to use in my beta rev3, the handbook says 0,5 kg/cm2 which is about 7 psi seems a bit low to me. regards Clive

many thanks Pete off to screwfix in the morning to get one Regards Clive

just taken the headlamp off of my beta rev3 250, apart from 10J there arent any markings on the bulb. Any ideas of what the specs are for this light bulb?

hello all am about to change the cooling fluid in my beta rev3. Any ideas what I use? is it 50:50 antifreeze & water all the best Clive

Many thanks for your replies I was wondering if the previous owner had put the bolts back without the correct thickness washers so am relieved to hear they are floating disks regards Clive

I am trying to find out which gear box oil to use in my 250cc beta rev3. I have been told to use ATF or normal 20/40 engine oil or Putoline GP10. Seems like ATF is recommneded for some types of gear boxes but not others. Any advice on what other owners use gratefully received. Regards Clive

Hello all I have just got a beta rev3 250cc both the front & rear disks/rotors are loose but the bolts holding the disks to the wheel are very tight. I do not want to overtighten them & strip the threads, any ideas what these bolts should be torqued up to? There is slight movement (1mm) in front & rear disks is this normal? The bolts have washers under them & its almost like the washers are too thin & the bolts are bottoming out. There is no wear on the disks where the pads press on them. regards Clive

many thanks for the replies, has anyone used PUTOLINE GP10 in their gearbox regards Clive

Hello all I have just got a beta rev3 in the manual it says use BARDAHL GEARBOX 20W40 oil in the gearbox is this the same as Halfords 20/40 car engine oil? all the best Clive