runs great w/ air filter removed

[Knox]

I rebuilt it top and bottom, its ran like ass since then. I've been through everything, cleaned carbs, checked oil level and water level regularly, and no change in them, plugs look good it just won't rev up much at all, i was sitting there chopping the throttle w/ the seat removed watching the air filter, the outterwear would suck in when i reved it up and wouldn't release much at all, so i took that off and it ran a little better, so i took off the filter and it ran awsome, never has had this much power, its a k&n filter, i've cleaned it and reoiled it, not too much, i have one on my truck also so i've done that a few times, is there a setting on the carbs to mess w/ the air intake, they are stock, 340 mains, not sure on the pilots, also it won't idle, I'm a newbie i've only owned a shee for about 3 months, any advise would be awsome, is this all a carb issue or is there something else i should be looking at?

[jmd0346]

I rebuilt it top and bottom, its ran like ass since then. I've been through everything, cleaned carbs, checked oil level and water level regularly, and no change in them, plugs look good it just won't rev up much at all, i was sitting there chopping the throttle w/ the seat removed watching the air filter, the outterwear would suck in when i reved it up and wouldn't release much at all, so i took that off and it ran a little better, so i took off the filter and it ran awsome, never has had this much power, its a k&n filter, i've cleaned it and reoiled it, not too much, i have one on my truck also so i've done that a few times, is there a setting on the carbs to mess w/ the air intake, they are stock, 340 mains, not sure on the pilots, also it won't idle, I'm a newbie i've only owned a shee for about 3 months, any advise would be awsome, is this all a carb issue or is there something else i should be looking at?

 

 

 

 

Why did you rbuild it? Who jetted it? What mods do you have? 340's are big unless youve got some mods.

[zach45]

your rich... so when you take the kn off it lets more air in

[Knox]

i rebuilt it because it locked up on me 2 weeks after i bought it, big end rod bearing shelled out and locked it up tight, messed up the right piston but not cylindar, its ported and polished, toomy t-5 pipes, vforce 3 reeds, pro design coolhead, it was built by fastway of las vegas nevada, i haven't done anything since they worked it over besides rebuilt it. what do i do that its running rich, it ran great about a month ago and ran great for about 2 years before that w/ this setup, i'm at same elevation, same temp everything is the same, where do i start and what do i start w/ to get it running good, i wanna get out and do some riding this weekend, thanks for the help

[.]

I would say you have to much oil in your filter maybe? Is your truck fuel injected? It will accomodate for air fuel mixture.

 

try cleaning the filter again and putting less oil on it this time and see if it runs better. Personally I dont like K&N's, they've never lived up to their name for me. I stick with the foam for in the dirt. I just usually run a think line of oil along each ridge and let it sit and disperse into the whole filter, and then go back and check every valley to make sure that it penetrated all the way to the valley.