Quote:
Originally Posted by wisest.fool
but still bogging at 3/4 to WOT.
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This right here is a good clue. 3/4 to WOT is where the Main jet does 95% of the fueling.
If after checking and adjusting the valves you still experience this, I would suggest pulling the main jet as well as the needle jet (what it screws into) and checking and cleaning both. A thin bit of wire can do a good job of clearing the orifice in the main jet out.
Another quick way to eliminate fueling from the equation would be to swap the carbs between the two bikes. If the problem follows the carb, that narrows the problem down. If not, then it is likely that fueling, at least on the carb side of things, is not the culprit.
As a side note, comparing main jets on a smaller engine with a likely smaller carb is an apples to oranges. A 98 is likely too lean for your bike. Most of these 200cc and 230cc engines run the best with a 105 to 110 main jet.