
Originally Posted by
jasonu
Not sure if that is correct. IIRC, and I think I do, the original 4 stroke rule change was about 12 years ago and was from 125cc to 145cc specifically to allow the GL145 (ask me how I know). The rule was then quite correctly updated to allow 150cc because of the appearence of the FXR. These rules were changed in a very successful effort to save a floundering class. Allowing the 80cc mx engines will only help out a couple of people who may have one laying around in the shed.
Besides that, even if you can find an 80mx engine chances are little Johnny has caned it from arsehole to breakfast with little or no regard to its health as it was daddy who had to fix it and it will require MAJOR surgery = lotsa cash to get running again.
but how are they going to save an already overflowing class ????
and as you say it's cheaper to put the engine backtogether and sell it to the next kid
makeing some money to start that fxr build 
or if you are realy cleaver you know how much and easy it is to rebuild and hot up a 2 stroke and have started your own build on a leggal engine
"Instructions are just the manufacturers opinion on how to install it" Tim Taylor of "Tool Time"
Saying what we think gives us a wider conversational range than saying what we know. - Cullen Hightower
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