dont know what i did By chrispetty1 (Read 1,565 times)

[chrispetty1]

ok so for the past two weeks my scoot has been hard to start i know i need a new battery so ive been kicking it its a wildfire wf 50 cc so i checked the valves they where fine i figured it might be a dirty carb so got a can of cleaner and set out to clean the carb i also wanted to check the manifold for any cracks since i dealt with that before well i cleaned the carb got every thing back together and once i started it oh my god it runs like its on meth and wont slow down i didnt touch the idle and the throttle cable is in the same place so i dont know what i did

[alleyoop]

Did you maybe leave out the NEEDLE GUIDE the Slide is probably stuck in the up position. Take the Air Filter off and look in there and see if the Slide is up. Or when you took the diaphgram out the needle is not in the guide. Or you maybe left the SPRING out of the Diaphgram.
Alleyoop

[chrispetty1]

i think i found the problem in my Diaphragm on the inside there is a little piece of plastic it has 3 prongs and i can't tell where it goes i don't see it on any of the videos what it is i don't know where it goes i don't know its white about 2 inches long has 3 sides i thought is sat inside the spring but i don't know

[chrispetty1]

i think i know why my diaphragm is different than the ones on the videos it appears that mine isn't adjustable there is no screw and clip to hold the needle in place thats what the white plastic thing does at least that's what it looks like

[JR]

Very common Chris and the white round needle holder will lock in place by pressing it in with a nut driver the right size and twisting it until it locks in place. To raise the needle for more fuel on can remove the needle and put a tiny thin washer on and then lock it back in place.

Raising the needle supplies more fuel?

JR

[justbuggin2]

Jr hit it on the nail again that white plastic peace holds the needle in its place

[chrispetty1]

ok thanks jr and ally one more question if you lets say put the carb back together for the third time and started the scoot and it still went crazy fast so you tried adjusting the fuel air screw how do you get it back to a good starting place

[chrispetty1]

ok so the litte white plastic needle holder has 3 L shaped feet with the l shape pointing out it is 8 mm round but a 8 mm socket and a 8mm nut driver wont fit down the hole so i tried with a pair of hemostats i use for fishing to turn it but it doesn't want to turn in the channels that the legs go down they seem straight and i dont see any clips at the bottom for the feet to lock into could it be the tension of the spring holds the needle down

[justbuggin2]

yes it can be i have an old carb that has that same setup i will try to find it and pull it apart to see how it is and let you know tommarow

[richardthescooter3]

If you have this carb, this is how it should look before putting lid on.

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[chrispetty1]

ok for all of those who said ypu turn the little white needle holder to lock it into place NO YOU DONT i dont know what held it into place but you dont turn it to lock it, i tried and it broke off upon inspection i was correct there 3 straight channels the legs go down no way for them to turn apparently i lost a piece althought i dont know how since i took the carb apart on a clean table with a lot of light and had no pieces left over and never saw anything else come out except the white thing and the needle so now i will be buying a new carb because i dont know where to find this diaphragm

[alleyoop]

What size carb is it Chris? you can just buy the entire DIAPHGRAM with needle I have extra brand new diaphgrams for the 24mm carbs if you want I can send you one just pay the shipping on it NO CHARGE. You can pm me your address don't put it up on the open forum.
Alleyoop

[chrispetty1]

which side do i measure air intake or manifold and the thing is the diaphragm isnt round like normal its D shaped with wings and it doesn't have the little tab on the rubber part its smooth all the way around

[alleyoop]

It appears you actually have a SLIDER type Diaphgram your scoot must be a 50cc with the Throttle Cable going into the top of the Carb IS THAT CORRECT?
I have Keihin type 24mm carbs for the 150cc scoots.
Alleyoop

[chrispetty1]

its 50 cc but the trottle is on the side but yess its a slider strangest thing ive ever seen