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               Originally Posted by 
              Chalk Two  
              Also interesting to see LJ18FUP is 689c.c., precisely the same c.c. as a 700 Tracer. I wonder just how they have 'adjusted' that engine and mapping. Or maybe it'll be the old trick of front and rear cog sizes and that's it.
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         they could do it in many ways, like size of flywheel, mapping, profile of camshaft...
        
 But I believe it will be the mapping and the front and rear cog, like you already mentioned. Cheapest way...