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06 HRC cam new piston rings crank shaft cam chain sparks full exhaust uni filter many more bolt ons!
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so i need to know how to tune my quad like where the screw is it boggs and like pics would help
What year is your quad? What mods do you have? Whats your elevation etc. these answers will help dial in your quad.
 

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06 HRC cam new piston rings crank shaft cam chain sparks full exhaust uni filter many more bolt ons!
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06 HRC cam new piston rings crank shaft cam chain sparks full exhaust uni filter many more bolt ons!
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and 1,384 ft elvation
If it starts and idles fine but bogs when on the throttle the pilot screw wont fix that. First thing you should do is clean the carb out good and find out what your jet sizes are. If youve never taken off your carb to clean it. There’s plenty of step by step videos on YouTube. Let me see if i can find you a link.
but chances are you have a clogged main jet. And a good cleaning will fix that right up.
 

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what is the current jetting and what if any mods are done to the bike?

if the bike has an exhaust and open airbox you should run about a 180-185 main jet, stock pilot and 2.5 turns out air/fuel screw
 

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teh large flathead screw on the bottom, rich is out and lean is in
 

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06 HRC cam new piston rings crank shaft cam chain sparks full exhaust uni filter many more bolt ons!
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You cant get to the screw while the carb is on the quad. ( its very difficult) its at the very bottom of the carb , exhaust side, towards the motor. Get your self a flex jet screw, here’s a pic. You can install it while carb is on. It comes out the bottom of the carb and turns up to the left side of carb so you can access it much easier.
but for now loosen the clamps on your carb and twist it sideways so youcan reach the stock screw, turn it in clockwise (lean) and out counterclockwise (rich). Or take the carb off to access it.
 

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06 HRC cam new piston rings crank shaft cam chain sparks full exhaust uni filter many more bolt ons!
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Sorry you have a 2005 trx, if my memory is right you can reach the pilot screw easier on those. Like cjm said flat head screw at the bottom of carb towards the motor. Im not sure if the flex jet fits 04/05 model.
 

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Sorry you have a 2005 trx, if my memory is right you can reach the pilot screw easier on those. Like cjm said flat head screw at the bottom of carb towards the motor. Im not sure if the flex jet fits 04/05 model.
You can buy the straight knob screw I believe for 04/05’s to access it easier, not the flex jet. Sorry for tbe confusion. Hope this helped.
 
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