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Old 10-04-2015, 03:57 AM
motopsycho87 motopsycho87 is offline
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Location: Suffolk, UK
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Quote:
Originally Posted by spooly View Post
That's one for the books!! Was it just plug and go or did u change jetting etc

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It's a straight swap. I'll do a video comparison once I'm moved. 125, 250 and 300 have quite different timing curves. There's a lot of information on CR500 AND 250 users swapping cdis about. Generally just advancing the stator plate causes a larger loss of high end rpm, with the 125 cdi you gain a hell of a lot of advance at low revs sacrificing a little retard at high. To gain the top end back you would retard the 125 cdi a couple degrees, still getting up to 10 degrees at low revs. I've had no pinging at all and it is FIERCE!
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File Type: jpg CR250TimingCurves2.jpg (47.6 KB, 45 views)
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