My maxim has a 6th gear??

[Seancb750]

Ok a bit of a weird one as far as I know my.bike is a 82 maxim. Has the correct style wheels etc. But im led to beleive the maxim is a 5speed gearbox. My bike has a 6 speed gearbox? Could my engine be out of a later seca? Also what is the standard jet sizes across the range in a dohc engine? Pilot jet. main jet. Pilot air etc?
I have 127.5s in atm. With 40 pilots still with the rubber plugs. Right cylinder plug is a bit black and left cylinder is white. Anything specifically to check. Running foam air filters and baffled exhaust.

 

[arfstrom]

Put on a pic, and then put the 3 digit engine/frame code in here. Those of us with real experience, (not me) will come out of the wood work to tell you about your bike.

 

[Jeff0133]

6 speed....Seca engine.
Same frame as the Maxim, same engine casing...only lighter crank and 6speed tranny.