rx engine tune up process is simple n easy every one can do the tuning by self, but for accuracy original related parts of engine would must have importanceif one have good sound engine but does not have good carb(stock or other good brand) then it can be headache
for tune up of the carb,first of all one should have to start up the engine at idel for almost 5 minutes(for warming it up)
tight the mixture screw till end before doing this increase the rpm by adjusting the rpm screw clock wise
then come to the mixture screw and unscrew(anti clock) it by 1.5 to 2 turns out(12 to 12 on clock would count 1 turn)
original turns out limit is 2.25 but its for stock and new engine if one would have lil older n weaker engine then should go for lil richer mixture.
after getting un screw the mixture then again adjust the engine rpm screw at 1.5k rpm(rpm screw,s adjustment should be slow by several intervals) wo is liy k aik bar jab aap rpm screw ko adjust kernay k liy twist krta ho to us tiwist ka rpm pay asar kuch der bad dekhnay main aay ga.
original clip position is at third grove from top.few pics r for reference
most rider wants to ride induction enginesb ut when they think about the fuel economy they would compromise engine performance on fuel
leaner setting of carb would not good for engine n can harmful to it