dan williams Posted June 6, 2015 Report Share Posted June 6, 2015 You could also pull a compression check. Quote Link to comment Share on other sites More sharing options...
mcman56 Posted June 6, 2015 Author Report Share Posted June 6, 2015 Compression is 155 psi. I measured the stroke. Beta USA was also nice enough to confirm with the factory before I did the swap. On some official Beta publications, the bore/ stroke numbers are misstated for the 200. (maybe from 2008) Working out the numbers shows that they do not equal 200. That had me confused for a while. Quote Link to comment Share on other sites More sharing options...
dan williams Posted June 6, 2015 Report Share Posted June 6, 2015 Fair enough, plenty of compression. Quote Link to comment Share on other sites More sharing options...
mcman56 Posted June 27, 2015 Author Report Share Posted June 27, 2015 I have found a couple of advance curves on line for trials bikes, one for Beta and one for Sherco. They show curves like a 4 stroke so I guess mine should have something similar. I could not find a Beta OEM CDI online but did find an aftermarket one. They could not tell me what type of curve it has but I ordered one anyway and will see what happens. http://www.leonelli.com/english/028%20CDI%20DIGITAL/028%20INGLES/028%20VOK.E-ING.pdf Quote Link to comment Share on other sites More sharing options...
mcman56 Posted July 6, 2015 Author Report Share Posted July 6, 2015 (edited) The aftermarket one is a combo CDI/ coil but has the same lack of a curve. The Beta CDI has 4 wires vs the 6 wires I have seen on a diagram listed by Dan W. There is one two pin connector and two seperate wires, one of which looks like the kill button connection. Edited July 6, 2015 by mcman56 Quote Link to comment Share on other sites More sharing options...
adamspad5 Posted July 14, 2015 Report Share Posted July 14, 2015 Did you get this sorted using the other cdi/coil ? Would be interested at doing the same thing as think my cdi is dead. Can you tell me where you purchased this from ? Quote Link to comment Share on other sites More sharing options...
mcman56 Posted July 16, 2015 Author Report Share Posted July 16, 2015 The other CDI has no curve and the bike runs the same. I still do not know if the OEM CDI should have a curve or not. The aftermarket was on: http://www.regulatorrectifier.com/catalog/20032008-Beta-250-Rev-3-CDI-Unit-1 Quote Link to comment Share on other sites More sharing options...
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