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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Tank bolts shaking loose
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<blockquote data-quote="chankly bore" data-source="post: 32098" data-attributes="member: 317"><p>Yup,the Spares Drawing is wrong! Larger diameter is innermost. A sleeve on a standard bolt is a poor solution, the sleeve will only distort. Helicoil 5/16" BSF and make the thread the full depth, just short of hitting the steering column. It is best to use the standard 5/16 BSF hexagon on the bolt, as otherwise you might foul front forks on full lock.You can drill the heads after noting fully tight position and fit a lockwire (black plastic sheated for unobtrusiveness) across the front of the UFM.The right sized washer 3/8"x7/8" is likewise essential. Also, check the other end of the tank and the distance piece for your source of vibration-and everywhere else on the machine!</p></blockquote><p></p>
[QUOTE="chankly bore, post: 32098, member: 317"] Yup,the Spares Drawing is wrong! Larger diameter is innermost. A sleeve on a standard bolt is a poor solution, the sleeve will only distort. Helicoil 5/16" BSF and make the thread the full depth, just short of hitting the steering column. It is best to use the standard 5/16 BSF hexagon on the bolt, as otherwise you might foul front forks on full lock.You can drill the heads after noting fully tight position and fit a lockwire (black plastic sheated for unobtrusiveness) across the front of the UFM.The right sized washer 3/8"x7/8" is likewise essential. Also, check the other end of the tank and the distance piece for your source of vibration-and everywhere else on the machine! [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Tank bolts shaking loose
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