banshee with no voltage regulator

[smeagol]

hi guys my brother and i both got set up with identical cub 421s, 39 pwks, and shearers.Got them back from mechanic. My brothers bike runs great 83 hp but mine has trouble cleaning out , and even when it does it can't pull 6th gear. I do have a 15 t sprocket though. Coils, cdi, and stator have all been replaced. I then noticed i have no voltage regulator. Whould this cause this erratic performance. My mechanic said i could turn out the air screws equally to adjust the bog out, but why didnt he just do it? anyways i scared of tinkering on the carbs but am learning fast due to this site Thanks in advance,

Smeagol in MN

[locogato11283]

if youre not running lights you dont need the voltage regulator. i have no lights or reg on my bike. no 2 engines are the same. your jetting may be different than his. have you checked to make sure you coil is grounded well? i mean bare metal ground.. ive had that problem before with my bike not sounding like it was cleaning out. your issue sounds electrical. check your grounds..

[dajogejr]

Yep...a bad ground will do it. Properly jetted, or even close...should pull a 15 tooth up front no issues at all.

[smeagol]

i checked my coil and i only have an orange an black wire connected to it. There are red/black and solid black wire grounded well next to the cdi. Also, the bike runs exactly as poor with the plug wires switched. I am receiving a new wiring harness in a week and a studying the electrical F.A.Q. before install but hopefully i don't need it. thanks

[smeagol]

is it normal for the motor to run the same with the plug wires switched?