Bike wont start!/ fouling plugs?

[blaine]

Originally Posted by jonathan180iq

And even if you crank the idle adjuster all the way and loosen then tension on the throttle cable it stays high, right? ....

This is one of those that would be a lot easier if we could see it in person.

He had all the cables disconnected,as was suggested.

[feltner58]

yeah it stays high no matter what, I read something about a "hunting idle" which is cause purely by loss of air pressure, apparently it pretty common, does anyone have access to a blow up of the air hoses and vacuum hoses, so that I know where to look and can start checking all of them again.

[jonathan180iq]

It may be time for the poor man's air leak test.

Grab a can of something aerosol and flammable and spray it on hoses and other places where air could get into the intake system. At some point, I'll wager, you'll hear the idle change in one direction or another. The liquid will either plug the leak for a few seconds and the idle will drop down or the leak will be so bad that the liquid gets into the system and the idle will increase.

I used WD-40 to find an air leak on my Geo Metro and my 85 Saab 900S.
Good thing about WD-40 is that you can smear it around afterwards to make everything nice and shiny. and if that doesn't work, you can always spray it off.

Don't use anything with a solvent...like brake cleaner

[feltner58]

Ok so I took all the hoses off and checked for leaks with wd40 and theres none, so I reassembled it all and its still idling high, but on the right side of the bike (side where the exhaust is) there is what looks like a vent hose that I had checked for leaks and every time I put my thumb over the end of the hose it idled down its not a smooth idle but its not real high like it is when I don't block the hose, what could that mean? If the choke is disconnected could it still be stuck inside the carb because this all started the last time I used the choke when it was running and driving great.
??????????

[Water Warrior 2]

Originally Posted by feltner58

Ok so I took all the hoses off and checked for leaks with wd40 and theres none, so I reassembled it all and its still idling high, but on the right side of the bike (side where the exhaust is) there is what looks like a vent hose that I had checked for leaks and every time I put my thumb over the end of the hose it idled down its not a smooth idle but its not real high like it is when I don't block the hose, what could that mean? If the choke is disconnected could it still be stuck inside the carb because this all started the last time I used the choke when it was running and driving great.
??????????

You might just have found your problem. Trace the other end of the hose. I think you will find that it leads to the bottom of the air filter box. If it is indeed attached to the air box it is actually a drain tube that is normally plugged. You are just missing the plug. Plug it with a small bolt or screw which ever is handiest for you. You have just found your major vacuum leak. Then try to set your idle and other adjustments. Lottsa luck and good on you for noticing this.

[jonathan180iq]

A golf tee and a zip tie should work wonders

[feltner58]

Its not from the air box I checked that one its sealed with the stock plug and not leaking, this hose is coming from the carb (right side), is it possible for the carb to stay choked even if the choke is disconnected from the carb. when I do plug this hose it idles right but the throttle response is little or nothing, basically when the hose is plugged and I give it gas it bogs out or just has a really delayed response......any thoughts?

[geezer]

your chock is easy to remove and inspect takes a 14mm wrench and thats it. remove it from the carb and take a look, there is a spring in there that might be rusted up. i had to cut a bit off of mine to make it work again.

[geezer]

r u talking about your vacuum diaphram tube? it goes to the back of the petcock

[blaine]

Originally Posted by feltner58

Its not from the air box I checked that one its sealed with the stock plug and not leaking, this hose is coming from the carb (right side), is it possible for the carb to stay choked even if the choke is disconnected from the carb. when I do plug this hose it idles right but the throttle response is little or nothing, basically when the hose is plugged and I give it gas it bogs out or just has a really delayed response......any thoughts?

That is the air vent hose.It remains unplugged.When you plug it you get a delayed response,and bogging.If you have the choke disconnected it is not possible for the choke to be on.
:cool: