I bought a bike a couple of weeks ago and it was bogging at high RPM's. I sprayed carb cleaner in the carbs, and all it wanted to do was backfire, I believe i fouled the plugs. So, i cleaned the carbs, and changed the plugs and now it starts.. But it's SUPER rich, like i can see gas coming out of the exhaust basically, and if you let it idle for about 10seconds then hit the gas it bogs, then backfires.

I took the carbs apart and checked the fuel valve and float and they seem ok. I checked my air filter, it's ok. The smaller air filters, checked them. I ran some compressed air through the smaller filters and some of them had chunks of filter blowing out of the other end of them. The vacuum lines seem really tight, the ones that go to the solenoid.

ANY IDEAS?

 

I did see this spring when i took the carbs apart, and cannot find out where it goes.. It could be something essential?

http://i198.photobucket.com/albums/a...0624091342.jpg

 

That looks like the return spring that attaches to the choke bar.

The choke cable attaches to a bar on the front of the carbs and when you pull the choke, the cable pulls the bar to the right side of the bike, when you take the choke off the bar returns under spring pressure.

If this is the spring i think it is, then your bike is on full choke 100% of the time which would explain the richness. Are the RPM's high when your idling?

 

no clue how high the idle screw was set because i unscrewed it when i took the carbs off...

The choke isn't on 100% because the bracket isn't pulled out.

 

Are you sure the bracket isn't pulled out? Maybe you think its all the way in, when in fact, its all the way out?

 

regardless if it was in or out.. it still seemed way too rich.. before i did all the work it didn't shoot out pure fuel like it does now.. But when i put it back together i'll be sure.. The bracket is suppose to go towards the left or right of the bike when the choke is enabled?

 

To the right.

 

...why?

 

Make sure you don't have a stuck float valve or something. Hell, make sure all your jets are actually there. Pull them out and check the tips, make sure you don't have one that's just totally cracked off and pissing gas into the thing.

 

one of the flat head's on one of the jets was sort of stripped, but just one side was just soft.