new engine won't idle, i THINK i have tried everything

[keylan]

I am not a motorhead, i don't know much about engines so i have done my best to work with this to get it to idle, nothing doin'.

i have tried about 20 positions of the brass screw on the side of the carb, that does not seem to do anything, i have tried screwing in and then out, the throttle cable to see if lengthening the throttle will work, nothing...:-/

any help would be awesome!

thanks everyone

 

[Alaskavan]

Is it possible that you are getting air leaking around where the carb is hooked to the intake? Also, okay, it won't idle. What will it do? Does it run if you keep the throttle opened?

 

[fetor56]

As Van said,see how u go with this if u havn't already:
http://www.motoredbikes.com/showthread.php?t=4976

 

[spad4me]

Do you know how to test for an intake air leak?

Use any spray for example : carb cleaner, wd 40, even windex.
With the engine running a low an rpm as possible spray at the manifold from the engine to the carb.
Does it change rpm when the spray is sucked in the leaky part.
If the engine rpm changes o ring, or glue the intake manifold to the carb .

I glue mine.
Only to the part of the carb where it bolts to the manifold.
Also check the bolts holding the manifold to the engine more glue here for me.
I adjust my idle using the cable adjuster on top of the carb slide.

I use red permatex or uv resistant goop

 

[keylan]

thanks for the info guys, ill try the spray,

i suppose i should have said that it will run without a hitch if i keep the throttle open...

it is just kinda annoying when i stop at stop signs to have to keep the throttle open the whole time

 

[keylan]

you guys are thew best, thanks for the info it worked like a charm, my bike idles like a champ now!

 

[srdavo]

what finally fixed it??

 

[keylan]

I think it was a combination of adjusting the throttle line in the handle and carb as well as adding an oring

 

[Alaskavan]

Another satisfied customer. Glad we could help.

 

[fetor56]

Leave the money on the fridge.