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Standard Main jet size


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Cheers :tu son in law bought it Un seen & delivered from shop, it’d had a after market silencer fitted. Noticed it wasn’t very nice to ride slow around town. Spoke to shop they said take it locally to shop they said “We’ve Overhauled carbs twice Returned everything to standard except for the exhaust 
The jets were size 60 which baffled them so they put them to standard (100) and it ran alot worse
Adjusted needle valve positions
Adjusted air screws in line with needle valve and jets
New spark plugs twice
New balance bungs within the carbs
Adjusted CV JetsNone of the above cured the issue and in most instances made it run worse”

 Which didn’t make any sense to me! Shop offered him his money back so he’s opted for that which is a shame as he likes the bike more than the race bikes he’s had previously, it was a nice bike, & I’d like to have known what it was that was the problem!

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