longjia 125 wont start By jake6302 (Read 1,841 times)

[Alleyoop]

From the closed position turn it COUNTER CLOCKWISE 2.5 turns, but with 3.5 turns out it should get more than enough gas.
So try to start it and if it DOES NOT FIRE after a couple of cranks TAKE THE PLUG OUT and see if the PLUG IS WET OR DRY. We need to find out if the motor is sucking in gas or not.
Alleyoop

[jake6302]

hi done wat u sed and the plug was dry well seemed dry to me lol

[Alleyoop]

Well IF IT DID NOT FIRE AT LEAST ONCE that means no fuel is being sucked into motor.

Ok, so fuel gets to the carb BUT maybe not into the carbs bowl So Lets make sure the carb bowl is getting filled with fuel. Get a cup and put the CARBS BOWL DRAIN hose into the cup and open the drain so fuel comes out. Then you can even crank if over and fuel should keep on coming out from the drain
meaning the carbs float is allowing fuel to fill it up.
If no fuel in the carb bowl then the CARBS FUEL INLET IS CLOGGED.

[jake6302]

cudnt undo the screw as they use cheap arse screws that were down the minute you pit a screwdriver to it, same with float bowl?. im sure a heard a little bit of fuel sloshin about in it though. didnt seem a right lot though

[Alleyoop]

Just get a new carb, they are cheap 25 bucks.
Alleyoop

[jake6302]

Mar 16, 2016 13:37:15 GMT -6 Alleyoop said:

Just get a new carb, they are cheap 25 bucks.
Alleyoop

so i take it this carb i got less than 3 weeks ago is broke

[Alleyoop]

You telling me it is a brand new carb and you CANNOT TAKE THE SCREWS OFF???
All your doing is loosening the DRAIN SCREW??
PICTURE OF THIS CARB you have so I can tell you what to do.

Do you know how to loosen them? Put the right Philips size screw driver on the SCREW and Get a HAMMER or something heavy and give the top of the screwdriver a good WHACK, that will loosen the screw.

HERE WATCH THIS VIDEO AND WATCH WHAT HE DOES TO LOOSEN THE SCREWS ABOUT 1:30 into the VIDEO.



Which type drain is on your carb?

PIC# 1: Drain Screw built into the Carb:



PIC# 2: Drain Screw built into the END OF THE DRAIN HOSE:

[jake6302]

hi sorry to be late responding as been over run at work, done wat u sed and yes there was fuel in float bowl as it drained out. starting to lose patience with the bike as its got me baffled. could it be the enricher and puzzles me why the pipe that runs from valve cover to air filter seems to sound like air escaping near air filter

[jake6302]

[Alleyoop]

After cranking like that take the plug out and see if it is WET or DRY because it did not FIRE ONCE. Then put the plug into the BOOT CAP and hold it on the VALVE COVER and crank it and see if the spark plug is sparking. THEN with the PLUG OUT stick your finger in the HOLE and hold it nice and snug then HOLD THE THROTTLE WIDE OPEN and crank it, if it has enough compression is should LIFT your finger off the hole. This will test THREE VERY IMPORTANT things that could be wrong.
Alleyoop