Dying on me By 125scooterbro (Read 539 times)

[125scooterbro]

Hi guys i try to fix this problem for a while, i have this 125cc chinese scoot wich just starts and bogging down after half a minute and if i give it gas it quits sooner, the scoot have only 10.000km, the compression is good. Here's what i did, put new fuel lines, new coil spark plug, carb, cdi, remove that pair system emission control non sense, petcock, intake manifold and that's bout it. I did this one by one of course to be sure wich part is bad, summer is soon here and i dont know what to do with this thing right now, any help would mean a ton

[czmdiver]

Ok welcome 125
What is the make and model of your Scoot??
sounds like she's starving and running out of Fuel.
You mention a petcock, do you still have or ever a Fuel pump?
The gas cap may be vented, if this vent is not working she will run outa fuel as you describe..

[125scooterbro]

Mar 1, 2018 7:15:01 GMT -6 czmdiver said:

Ok welcome 125
What is the make and model of your Scoot??
sounds like she's starving and running out of Fuel.
You mention a petcock, do you still have or ever a Fuel pump?
The gas cap may be vented, if this vent is not working she will run outa fuel as you describe..

Hi, thanks. It has no fuel pump but a petcock as stock, it is a Qingqi 10-H, is similar to a Qingqi 10-D only some different plastic panels and airbox is mounted on the top of the engine, as you say i was thinking about the gas tank venting, i try run it without the gas cap with same results, on top of a gas tank it's a hose next to the fuel sending unit wich go to the petcock, is that the venting?

[125scooterbro]

Quick update, i am pretty sure my engine is flooded, now i read some articles but there is an expert around who knows wich is the best way to fix this? Many thanks in regards

[cyborg]

Put the old carb on and see what happens

[scrapiron1205]

Feb 28, 2018 11:20:24 GMT -6 125scooterbro said:

Hi guys i try to fix this problem for a while, i have this 125cc chinese scoot wich just starts and bogging down after half a minute and if i give it gas it quits sooner, the scoot have only 10.000km, the compression is good. Here's what i did, put new fuel lines, new coil spark plug, carb, cdi, remove that pair system emission control non sense, petcock, intake manifold and that's bout it. I did this one by one of course to be sure wich part is bad, summer is soon here and i dont know what to do with this thing right now, any help would mean a ton

Well could be a little bit of these things to check out washer ring could b gone off gooseneck a vacuum hose could b loose filter could b stopped up

[125scooterbro]

Mar 11, 2018 19:38:21 GMT -6 scrapiron1205 said:

Feb 28, 2018 11:20:24 GMT -6 125scooterbro said:

Hi guys i try to fix this problem for a while, i have this 125cc chinese scoot wich just starts and bogging down after half a minute and if i give it gas it quits sooner, the scoot have only 10.000km, the compression is good. Here's what i did, put new fuel lines, new coil spark plug, carb, cdi, remove that pair system emission control non sense, petcock, intake manifold and that's bout it. I did this one by one of course to be sure wich part is bad, summer is soon here and i dont know what to do with this thing right now, any help would mean a ton

Well could be a little bit of these things to check out washer ring could b gone off gooseneck a vacuum hose could b loose filter could b stopped up

Nope. Every hose is new and tight, new fuel filter

[kz1000st]

Valves adjusted? A loss of compression might let the vacuum petcock clamp shut.