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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
BT-H Mag
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<blockquote data-quote="Simon Dinsdale" data-source="post: 16227" data-attributes="member: 58"><p>Hi Homil,</p><p></p><p>I have just had a BTH mag fail on my Vin. It was fitted early 2007 and has done approx 9000 miles. Last year it was no problem, but I did notice on occasion I had to kick the bike 4+ times to get it started which is not like my bike.</p><p>This year after a winter hibernation it was really difficult to start. I went through all the timing, connection etc and finally assumed it was the 4 months old petrol. Gradually the starting (especially cold) got worst and at the Severn rally I got it to start after 10 minutes kicking. At the east midlands rally a week later it would not start at all. Re-checked everything inc timing and also swapped the coils for a spare pair I carry and still no joy. There is a spark at the plugs, but I think the electronic timing is not working correctly so there is no spark at the right time even though the static timing is correct.</p><p></p><p>The final test was to after been relayed home was to take the BTH off and put the old points coil system back on. It started first kick!!! and ran fine, so the conclusion is the BTH is faulty. Haven't talked to Tony at BTH yet as his web site stated he is on holiday / working on prototypes until early July.</p><p></p><p>Cheers Simon.</p></blockquote><p></p>
[QUOTE="Simon Dinsdale, post: 16227, member: 58"] Hi Homil, I have just had a BTH mag fail on my Vin. It was fitted early 2007 and has done approx 9000 miles. Last year it was no problem, but I did notice on occasion I had to kick the bike 4+ times to get it started which is not like my bike. This year after a winter hibernation it was really difficult to start. I went through all the timing, connection etc and finally assumed it was the 4 months old petrol. Gradually the starting (especially cold) got worst and at the Severn rally I got it to start after 10 minutes kicking. At the east midlands rally a week later it would not start at all. Re-checked everything inc timing and also swapped the coils for a spare pair I carry and still no joy. There is a spark at the plugs, but I think the electronic timing is not working correctly so there is no spark at the right time even though the static timing is correct. The final test was to after been relayed home was to take the BTH off and put the old points coil system back on. It started first kick!!! and ran fine, so the conclusion is the BTH is faulty. Haven't talked to Tony at BTH yet as his web site stated he is on holiday / working on prototypes until early July. Cheers Simon. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
BT-H Mag
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