50cc idles but boggs down only goes 15 mph By tyler20 (Read 835 times)

[tyler20]

Hey All,



I have restored a 2007 50cc Gy6 Chinese scooter (ROKETA) and it is idling perfect at this point. However, when i take it out and "gun it" to get up speed, it bogs down and eventually kills.



Am I flooding it with too much gas? Is there something I should focus my attention on when trying to fix this?



The main change I've made lately is going to a performance air filter and removed my old "box on the side" air filter. Does that have anything to do with it? (too much air to gas ratio??)



Any help is much appreciated.



Read more: scooterdoc.proboards.com/thread/13591/50cc-idles-boggs-goes-mph?page=1#ixzz4t43MtGfq

[czmdiver]

Sept 18, 2017 14:29:49 GMT -6 tyler20 said:

Hey All,



I have restored a 2007 50cc Gy6 Chinese scooter (ROKETA) and it is idling perfect at this point. However, when i take it out and "gun it" to get up speed, it bogs down and eventually kills.



Am I flooding it with too much gas? Is there something I should focus my attention on when trying to fix this?



The main change I've made lately is going to a performance air filter and removed my old "box on the side" air filter. Does that have anything to do with it? (too much air to gas ratio??)



Any help is much appreciated.



Read more: scooterdoc.proboards.com/thread/13591/50cc-idles-boggs-goes-mph?page=1#ixzz4t43MtGfq

Did the Problem arise immediately after the Intake change?

[tyler20]

It is hard to say as I replaced the carb with a performance carb, the gas line, air intake line (to fuel pump), ignition coil, solenoid, spark plug and starter.

After I replaced all of that, I started it up and it proceeded to idle, but bog down when I was riding and went above 15 mph.

Does that help you at all?

Thanks for your help.

[czmdiver]

Sept 19, 2017 14:56:15 GMT -6 tyler20 said:

It is hard to say as I replaced the carb with a performance carb, the gas line, air intake line (to fuel pump), ignition coil, solenoid, spark plug and starter.

After I replaced all of that, I started it up and it proceeded to idle, but bog down when I was riding and went above 15 mph.

Does that help you at all?

Thanks for your help.

Ya a whole bunch.
Is the Pref, carb the same size as was on there or a bigger carb or? like in "mm" size.
Your going to need to look at the Jet #'s on the original carb compared to the new Perf Carb
Also you mentioned no jetting changes to the new Perf carb, Looks like with all the changes you made your going have to do some minor jetting/tuning.
Should be that big a deal to work thru.
Pop the fuel bowl off the original and see were your wert at and go from there.
             good Luck