Maintenance & Technical > KX500 Original
Exhaust valve timing..?
YUNGGUNNAZ:
have set up date with Ms. Dyno for the sat. after xmas.its at a friends harley shop(he races top fuel kaw)for suppose to be 65.00 hr.but its likely going to two hrs. for that.we get to talking and trying things and you know.will be trying 3 pipes,keihin carb,44 lectron,stock flywheel,lighten one,ignition timing and of course exhaust valve washers,springs.sounds like three hrs.uh.anything else i should maybe check if time allows?
doordie:
YUNGGUNNAZ,
Different intake valves,stock or aftermarket(vforce,Radvalve),maybe borrow someones if you don?t have. :wink:
You should have O2-sensor to adjust right jetting (A/F-ratio). :wink:
A good chain and easy rolling tire. :wink:
//doordie
YUNGGUNNAZ:
ok. got a stock intake,vforce and mossbarger w/spacer on hand.his dyno setup should have o2 sensor wand or something i guess.will change tire to either street or enduro thread.we were going to do it today but it would have been a rush getting everything together.although i have the 99 already down to replace some trans. gears.he wanted to show me a VICTORY on the dyno but did'nt have time.boy this is going to be fun!oh might as well take some thermal wrap for pipes to see results.gonna get my money's worth.
Brett:
I would try each item one at a time only otherwise you will get lost, then wack the best of each option on and hopefully not go backwards. The thing i would like to see is a simple before and after reed block spacer as there has been much discussion on this and i would like to see if much top end losses.
YUNGGUNNAZ:
the spacer deal was another thing i was looking at also.i'll try each pipe, carb combo first starting with stock reed cage and either pro circuit or dyno-port up pipe i have.after plug chop,i'll change cages and carbs.getting the best pull with each after proper tune up.i'm looking for the most hp,torque #'s out of each combo.keeping curve in mind.will document each setup(jet,timing changes,temps,a/fr,etc.)
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