Honda gx200 wont idle

[hoobgx200]

i got me new insulator today and fitted it but did not make a diffrents still wont run with out choke on what els can it be ?? could it be running lean ? i dont no what els to try :S

 

[Doc Sprocket]

Oh, it's lean, all right. But why? You said you blew the carb out with air pressure, but that does not guarantee that it's clean. This all boils down to too much air, or not enough fuel. Since you seem confident that there is no air leak, chase the fuel concept. In addition to re-cleaning carb, pull the fuel line off the carb, point it into a catch can, and turn the fuel tap on. Ensure it flows well, not trickles. If it trickles, either the inlet screen (in tank) is clogged up, or the tap.

 

[hoobgx200]

iv had the carb in bits cleaning it with carb cleaner twice just in case I no the fuel flows nice coming out the pipe from tank the only thing I ain't checked is the tap part of the carb I do that tomorrow. anything els I should look at? surly it can't be to meany things left lol

 

[r_chez_08]

Have you got some baby drills? I know it is probably not the correct thing, but I know these GX motors have lean stock idle jets. I upped the idle on my gx160 and 6.5hp clone, they run much better at idle! If it runs fine at high RPM this could help?

Did you clean the main jet and e tube up the hole where the bowl bolt goes in?

 

[hoobgx200]

chez I don't have no baby drill bits but I was thinking about getting a 75 jet and a 140 e tube don't no if that will help tho ;/ ? its doing my head in trying think what it can be ?

 

[r_chez_08]

May do, but shall we get it running in stock form first? You could always try the new bits, and if they don't work, then put the old ones back.
Oh and whilst your at it- upgrade the POS air filter, and maybe a header?

I am stumped too- With a clean carb, stock jets and filter, and no air leak, the motor should run fine...

 

[hoobgx200]

how would u go about looking for air leaks is there any think I can do to tell ?just thinking I want to be a 100 percent it's not a air leak by checking again lol

 

[Doc Sprocket]

First, don't just randomly swap jets around. Get it running decently, and read the spark plug. It will tell you what it wants.

Next, when you clean the carb, don't just soak in carb cleaner, and/or blow out. Use fine wire to poke out all orifices.

To check for an air leak- run engine as best you can (even if it means part choked) and preferably with the air box on. Carefully spray bursts of carb cleaner around the base of the carb/isolator/intake port. If engine responds in any way to the spray, you have a leak. Needs to be perfectly sealed and therefore would not be able to ingest any spray.

 

[hoobgx200]

I was just thinking could I have done the tapets wrong when I did them would that make the problem?

 

[Doc Sprocket]

I suppose it's possible. If in doubt, doublecheck.

 

[Swabbster]

check the valve clearance, nad maybe the main jet, ever tried a new spark plug, wet air filter?,