When you add an exhaust and snorks, you typically go up a size or two in pilot jets. I would look at the air filter to ensure A) it's clean and B) it's not over oiled. Both will cause you to run rich. I might suggest cleaning it with warm soap water (or gas), drying it, then reoiling it for good measure. ALso check the ductwork for obstructions....be it birds nests, mice nests, dog food, etc... Not kidding about that by the way...I've seen and heard it all and it most definitely happens.

 

thats what i would have thought a bigger jet. I will clean the filter. but it is stored in a attached garage in the city I know there are no critters but will check that too. lol

 

so I took the air filter right out and checked that there is no obstructions 2 inch snorks. warmed the engine up and the satrted checking idle plugs from 3 turns out on the pms and down till 1/2 turn. this is the last one at 1/2 turn while idleling for 30 secs (no throttle just start button) and they are still fouled. What am I missing, doing wrong. HELP. Brand new plug.
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Your pilot jet is too big. If you turned it in to 1/2 turn and still idled with out stumbling that is a sign your pilot is too big and too much gas. from your pics I would say 2 sizes.

 

<div class='quotetop'>QUOTE (garyb @ Apr 28 2009, 03:48 PM) <{POST_SNAPBACK}></div>

Your pilot jet is too big. If you turned it in to 1/2 turn and still idled with out stumbling that is a sign your pilot is too big and too much gas. from your pics I would say 2 sizes.[/b]

does it make sense to add exhaust and snorkels and then go down 2 sizes in your pilot jet. i mean thats what it seems like I cant do anything to make it idle lean. it just sounds odd.

 

Can someone tell what size my pilot jet is and what sizes I should try?

 

Did you put in the pilot from the dyno jet in. Not sure what the 500 come with, sorry about that. I do know stock on the 05 H1 is a 40. What size CVK carb comes on a 08 500?

 

dyno jet kit didn't come witha pilot jet it is slill stock. I dont know what size carb it is

 

Thats right they dont come with the pilots my bad. What clip do you have it on. Dyno says clip 3 for below 5000. And I just wonder if you don't maybe have a slight vac leak with the diafram in the carb. With all at that air and at idle you should be lean. Maybe your float is sticking.. Just a couple of thoughts

 

should need bigger pilot, i think somethings plugged up inside the carb or slide leak, as stated above. clean your carb and check slide seal. check filter like sanny said wring out excess, also to adjust pms turn idle up a little, with pod on tach adjust for highest idle speed, if less than 1 turn smaller pilot is needed, if more than 2 turns larger pilot is needed.

 

it is on the third clip but I was starting it without any throttle so the vacuum shouldnt even come into play I think. maybe I am wrong. it should be real lean but nothing I can do will make it that way. I will try smaller pilot jets. that seems the only way to lean it down at idle.

 

Stock pilot was a 40 in my 08 500. Just a thought but could the choke be sticking.

 

start it with no boot on the carb that'll lean it out, watch for slide to move or gas to come running out

 

I guess I should clean it out real good first before I change pilot maybe it got dirty. although it is rich I have real good power no backfire and seems to run strong but it blows smoke and smells like gas then the plug eventually fouls to the point it wont start.

 

<div class='quotetop'>QUOTE (Indiana Mudcat @ Apr 28 2009, 07:39 PM) <{POST_SNAPBACK}></div>

start it with no boot on the carb that'll lean it out, watch for slide to move or gas to come running out[/b]

will taking off the airbox lid do the same or do I need to look into the carb?

 

i would look in if somethings plugged up you'll probably see gas coming out, if slide seal is good you'll see it raise when you hit the gas, also slide spring can hold slide up if clipped part of spring isn't up

 

Did you have the choke removed from the carb during your jetting? Maybe thats the issue.

WC

 

<div class='quotetop'>QUOTE (walkingcrow @ Apr 28 2009, 09:05 PM) <{POST_SNAPBACK}></div>

Did you have the choke removed from the carb during your jetting? Maybe thats the issue.

WC[/b]

do you mean I should remove the choke to jet. I warmed the bike up real good to hope the choke would not be in play. thanks for alll the help everyone I am taking the carb off to clean and inspect it now.

 

Exactly the same thing happened to my 650. I spent a week trying to figure out why. This is going to sound wierd but all I did was start using seafoam. And it ran like a top. Still today if I dont use seafoam it starts acting wierd, espesaly if its cold. Not sure if it would help you, Maybe just try it if your not already.

Larry.

 

<div class='quotetop'>QUOTE (Indiana Mudcat @ Apr 28 2009, 07:58 PM) <{POST_SNAPBACK}></div>

i would look in if somethings plugged up you'll probably see gas coming out, if slide seal is good you'll see it raise when you hit the gas, also slide spring can hold slide up if clipped part of spring isn't up[/b]

Started it without the intake boot on nothing was coming out the slide was working almost in exact unison to the throttle up and down. saw a tiny bit of gas sputter at higher throttle but seemed fine.

 

<div class='quotetop'>QUOTE (larrysmash @ Apr 28 2009, 10:31 PM) <{POST_SNAPBACK}></div>

Exactly the same thing happened to my 650. I spent a week trying to figure out why. This is going to sound wierd but all I did was start using seafoam. And it ran like a top. Still today if I dont use seafoam it starts acting wierd, espesaly if its cold. Not sure if it would help you, Maybe just try it if your not already.

Larry.[/b]

When you say started it using seafoam do you mean by adding to the tank or spraying into the carb.

 

If the choke is broken could it be flooding too much gas into the carb. is there a way to test it. When I was taking the carb off there was no cover on it I dunno and there was the tiniest bit of the plastic center broke maybe a mm of it. It looks like it would only hold the spring in place and it still does that.
[attachment=127509:036.JPG][attachment=127508:030.JPG]
[attachment=127507:029.JPG]
should I try the carb with this removed. will it work? Should I replace it. It is the most expensive piece on the carb bang your head

 

don't know much about choke yet, but if it is sticking thats your problem.

 

My money is on that choke. Anything broke on that I would fix. The upshot here is that Bayoucat (member) found a choke for MUCH cheaper than through a dealer. A LOT cheaper. I'll try to find the post for ya. Please hold.......

 

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