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Author Topic: Misfire at high speed on mk 1  (Read 9226 times)

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Offline trevorp

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Misfire at high speed on mk 1
« on: 27 Jun 2005 at 14:16 »
had an interesting problem with a mk 1 engine running a mn1 magdyno
could not get engine to run properly after checking carbies etc
what i found was the points and drive fitted seem to be from something else
i have pictures as i was so baffled i pulled out my points as my bike was running well and compared the two have a look at where the keyways are placed on both units the one on the left is the correct one for a mk douglas
and the shoe size is smaller
life lesson number 1 not everything u get on your bike is origanal lol




Larger view here




Larger view here
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Offline tck

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Re: Misfire at high speed on mk 1
« Reply #1 on: 23 May 2007 at 15:01 »

what i found was the points and drive fitted seem to be from something else


Looks like a Vellocette unit to me
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Offline eddie

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Re: Misfire at high speed on mk 1
« Reply #2 on: 23 May 2007 at 16:10 »
Hi trev,
             It looks as if you have one points assy from a Lucas mag and the other  from a BTH.
                       regards,
                                       Eddie.
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Offline trevorp

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Re: Misfire at high speed on mk 1
« Reply #3 on: 24 May 2007 at 07:38 »
no eddie was correct bth and wrong direction
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