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Timing woes.
Second Gear User
Site Member
Forum Posts: 46
Member Since:
February 10, 2019
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June 26, 2019 - 8:10 pm
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Hi all if timing was slightly out could it start and run ok up to 30 mph before running unevenly and also make the carb hot even though it has a thick carb to barrel spacer ,the bike is a 1966 d7 with d10 head and barrel with a concentric 626 set up for 2 stoke use I have ordered a new condenser to rule out my old one.what I really need is for someone  to have a go on it who knows what they should run like but failing that I would just like a clue as to what to try next I feel like I have tried every thing but just cannot it to run as it should any would be much appreciated many thanks Joe.

Top Gear User
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Forum Posts: 1319
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January 9, 2013
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June 27, 2019 - 9:07 am
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hi Joe       by  useing   duck   tape  holding  in  the  geny   you  can  tack  out the  3  screws  &  move  the  timing    a little moor   ,this  will get  you  up &  down  the  road    to  find  out     ,  most   peple   wont  spend mouny  on  reconing  the  crankshaft   so  i think  your   bantam has  lots of  small things  that   need  doing  most   dont  remember  bantam  wer  around   the  speed  limits  wer  keped  to ,,, 45  was  good  for  a  bantam    all  my  bantams  have  very  good  crankshafts   its  the  most  inportant   thing   for   good  runing

Second Gear User
Site Member
Forum Posts: 46
Member Since:
February 10, 2019
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June 30, 2019 - 7:30 pm
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Hi all rechecked timing and points for accuracy today and they seem to be good I did however change the condenser but also looking at carb it appeared  to of had a slight bow in flange mounting point I flattened it out with some wet and dry on flat surface and also refitted it with a decent thickness baker light spacer this when appeared to give it a bit more power.So managed to go from 40 mph to 44 mph but it did to take a while to get there it does appear now that the clutch may also be slipping now and then, I find this strange as I changed clutch plates and springs about 150 miles ago could it be the oil im using I use classic 40 comma brand it is 7 years old but surely if its in a sealed tin it should be fine .I have nice tension at the clutch lever so im not sure why it would be slipping ,I would welcome any thoughts on this matter many thanks Joe.

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