Failed Emissions test- CO was too high. What now?

[Fausto]

Ok I found an example of the Pilot screw here viewtopic.php?f=8&t=617
And it is the picture of the pilot screw. So the pilot jet that is underneath the float chamber is not related here? Should I adjust it, or does that one seat in completely?
Thanks for your help here guys.

[blaine]

The pilot screw Adjustment is # 13.It is located beside the float bowel.
:cool:

[Fausto]

Got it! Ok here is the deal, I realized the carb was not secured properly. I failed to tighten the the rings that secure the carb to the air box and to the motor. I still went ahead and drilled through to get access to the pilot screw. I turned it clockwise and seated. Then gave it 2 turns counter clock wise.The problem I am having is that it idles high until I give it throttle, it then goes down to a putter. I went another turn clockwise and it idles high and then it goes down to a putter. It doesn't seem to make a difference.
The bike was hot, I drove it around the block and 1/4 mile on the freeway. Its AZ so the temps are above 100 right now. What an I doing wrong? :retard:

[blaine]

Sounds like you may still have a vacuum leak.A easy way to check is to spray WD-40 around the boots & hoses with the bike running.If the idle increases you found your leak.
:cool:

[raul10141964]

If you do any mod to the carb retun it to the factory seting

[mrlmd1]

The dose of Seafoam should be 1-2 oz./gal of gas. Half a can for 3 gal of gas is an overdose and may be a cause of the bike running like crap or having the emissions off. Use up that tank of gas and then just put in regular gas, you don't need Seafoam with every tankful.

[Fausto]

@blain, I sprayed wd-40 and it didnt change. I drove it to work a couple times, and it ran ok. It would back fire when I turned it off every time. On the third day of driving it to work, it turned off on me while going 75 mph on the highway, I coasted to the side and it wouldn't turn on. Sounded like it had no gas. I switched the petcock to prime and it ran fine. What does that mean?

@raul, I haven't done any mods to the carb. I cleaned the jets and replaced them. Did I miss n adjustment some where?

@mrlmd1, ths the first time I added seafoam. Thanks for tha advice, I'll use it up and replenish with fresh gas.

[alantf]

Originally Posted by Fausto

I switched the petcock to prime and it ran fine. What does that mean?

Sounds like you're not getting the vacuum that's needed to open the petcock in "run" & "reserve" ("prime" doesn't need a vacuum) Check the vacuum pipe that goes from the engine to the petcock for splits & tightness.

[Fausto]

Originally Posted by alantf

Sounds like you're not getting the vacuum that's needed to open the petcock in "run" & "reserve" ("prime" doesn't need a vacuum) Check the vacuum pipe that goes from the engine to the petcock for splits & tightness.

Thank you alantf-

I checked the hose and it looks fine. Is there another vacume hose? I read in a different post on a similare problem and someone mentioned an "S" hose form the crank case to the filter box? I havnt checked it yet but when I do I will, could that be affecting it too?

Thank you all again for your help. I hate that I am having all these questions and answers without any resolution, but I know I will be able to look back on this and be thankful for the learning experince

[Water Warrior 2]

Originally Posted by Fausto

Thank you alantf-

I checked the hose and it looks fine. Is there another vacume hose? I read in a different post on a similare problem and someone mentioned an "S" hose form the crank case to the filter box? I havnt checked it yet but when I do I will, could that be affecting it too?

Thank you all again for your help. I hate that I am having all these questions and answers without any resolution, but I know I will be able to look back on this and be thankful for the learning experince

And then it will be your turn to impart wisdom and experience to the next new member. For a smaller forum this one is just chalk full of info and helpful folks.