Let me give a fair comment on this. Jetting a carb is basic stuff you do to a pocketbike whether it is an a/c or a w/c. so if you know how to rejet an air cooled engine, you should have no problem with the w/c bike. Carb design is very similar. Do you have a picture of your carb? I will show you how to locate the idle screw and how to rejet the carb.
im not meaning to be rude yo. Ya i understand i only ride a/c. but i got a dell rep carb and thats the same stuff
If you have the del rep 14/14 then it is different. coz the GP3-R came with the 19mm del replica, the design is different, it has more than 1 jet inside the carb. But anyway, jets are always located in the same place...inside the float bowl.
Let me give a fair comment on this. Jetting a carb is basic stuff you do to a pocketbike whether it is an a/c or a w/c. so if you know how to rejet an air cooled engine, you should have no problem with the w/c bike. Carb design is very similar. Do you have a picture of your carb? I will show you how to locate the idle screw and how to rejet the carb.
okay here some picture of the carb, its a 19mm carb, and yes i am kinda new to this, thats why i know so much little.
so okay now the 1st pic is the left side of the carb, 2nd pic is the right and the other two are random, and yah my pull start broke, so im still waiting for my new one
Ok lets try this. that big screw in the middle of the carb is the idle screw turn it to 1 1/2 turns out.
That little screw on the motor side of the carb is the mixture screw reset it to 2 1/2 turns out. Now this mixture screw should be set between 1 1/2 to 3 1/2 turns out with 2 1/2 turns out being a starting point. You will still need to fine tune the mixture screw but hopefully this will get her running. Also this is also used to tell you if you need a bigger or smaller main jet. So if when you are fine tuning it and it ends up being less than 1 1/2 turns out you need a smaller main jet. Than if it ends up more than 3 1/2 turns out you need a bigger main jet. Now you can run + or - these settings but you are leaning towards a smaller or bigger main jet. You want to test these settings by having the bike on the stand and if you can romp on the throttle and it settles down and doesn't hang on to the rev's when you let go of the throttle it's ready to test by riding to do a plug chop.
Ok lets try this. that big screw in the middle of the carb is the idle screw turn it to 1 1/2 turns out.
That little screw on the motor side of the carb is the mixture screw reset it to 2 1/2 turns out. Now this mixture screw should be set between 1 1/2 to 3 1/2 turns out with 2 1/2 turns out being a starting point. You will still need to fine tune the mixture screw but hopefully this will get her running. Also this is also used to tell you if you need a bigger or smaller main jet. So if when you are fine tuning it and it ends up being less than 1 1/2 turns out you need a smaller main jet. Than if it ends up more than 3 1/2 turns out you need a bigger main jet. Now you can run + or - these settings but you are leaning towards a smaller or bigger main jet. You want to test these settings by having the bike on the stand and if you can romp on the throttle and it settles down and doesn't hang on to the rev's when you let go of the throttle it's ready to test by riding to do a plug chop.
so on the first pic, that big black screw on the top , thats the idle and the one the side is the other, right? well ima try that and ill let ya know what happen or my result. thanks!!! big time
No that big black knob is the choke you pull it up and give it a 1/4 turn to start the bike than when it's warmed up you pull up and turn it back the 1/4 turn and let it go back down. The 2 screws I'm talking about are both on the side of the carb.
No that big black knob is the choke you pull it up and give it a 1/4 turn to start the bike than when it's warmed up you pull up and turn it back the 1/4 turn and let it go back down. The 2 screws I'm talking about are both on the side of the carb.
aaha i gotta give u props, thanks man, aight so now on the first pic see how theres two screw, one all the way to the left near the reed box and the other one on the right,> so i got to adjust those to right>? btw all this time i been trying to turn the idle srew with the wrench ahah.
aaha i gotta give u props, thanks man, aight so now on the first pic see how theres two screw, one all the way to the left near the reed box and the other one on the right,> so i got to adjust those to right>? btw all this time i been trying to turn the idle srew with the wrench ahah.
I'm sorry I had to get up off the floor. The bigger of those 2 screws is the idle screw and the 1 closest to the reeds is the mixture screw.
Ok sounds like you have a airleak some where. So did you just resetet the 2 screws to where I said to start with? You can leave the idle screw alone but have you tried turning the mixture screw to 2 turns out or even 3 turns out? Will the motor stay on with the choke on?
Ok sounds like you have a airleak some where. So did you just resetet the 2 screws to where I said to start with? You can leave the idle screw alone but have you tried turning the mixture screw to 2 turns out or even 3 turns out? Will the motor stay on with the choke on?
yeah i adjust the screws, the engine will start and then rev up, tires spins quickly and then dies on it self.
The choke is on when the black knob is up and the choke is off when the black knob is down. So when you go to start it pull the black knob up and give it a 1/4 turn start it and let it warm up a minute than pull up on the black knob and turn it back a 1/4 turn and let it go down.
I'm sorry I had to get up off the floor. 
The bigger of those 2 screws is the idle screw and the 1 closest to the reeds is the mixture screw. 
Re: Polini GP3-R Reverse!! 
