Vintage Dirt Bike Q & A

Is the engine number supposed to match the frame?
I have one that appears to have had the case replaced with a new one, there is no number and it appears that
it was never there, no grind marks and the original engine paint is on it.
Thanks
Jeff

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jeff

I dont know for sure about th cr but I know the honda xl's of that era did not have matching frame/engine numbers so I really doubt the cr did. The case sounds like a replacement as they didnt have numbers on them.

no.

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80 CR250Ra
80 CR250Ra
78 CR250R
80 CR80
82 Bultaco Sherpa 340
78 Bultaco Pursang 250 MK12
76 Bultaco Frontera 370 MK10
76 Bultaco Alpina 250
73 Bultaco Lobito 125 MK6
76 Suzuki RM125A
90 Kawasaki KX250

From my limited experience with early CR's, engine numbers are generally within 50-100 numbers of the frame number.

Engine cases with no numbers means the case was a replacement from Honda. In other words, someone purchased the case from Honda parts, back in the day when they were still stocked items.