rough

Hello All, I have a 2011 FE390 that is running really rough. Before a ride this spring, i was busy doing several things at once and loosely put the oil cap back in the bike. 15 to 20 minutes into the ride (in the rain), I looked down and the cap was off. The bike was also running a little...

So I have a 2006 KTM 250sxf w/ fcr carb. The bike idles well, starts easy, has great throttle response, no bog. The only problem is when I'm putting around with no real load/no acceleration say 1-2 gear with the throttle rolled just above idle it sounds a bit rough. How should i go about...

09 FE 450, stopped running right a while ago, took the injector apart, cleaned it using the 9v battery method, bikes running alright again but rough on the bottom end, very surge-y if that makes sense, lumpy and almost as if it fires every other time? any ideas, i was meticulous for clenliness...

Ever since I got my motor rebuilt, I have a problem with it popping and complaining for the first mile or so. It gets to the point where it just won't go unless I let it idle and clear out. Then it runs fine 98% with a few pops here and there. I was told that it was because I was riding harder...

Don't know what happened, but all the Hbg riders slid down the final results this weekend in Poland. No one made the podium. Any idea what happened, or didn't?

my jetting is the stock needle, clip is 4th from top, pj is 42, mj was 175. Fuel screw out 2 turns. I run at 4000 ft elevation, temps 40-80F the bike starts easy, runs smooth and is a dream. SO sunday I'm riding and we stopped alot, maybe I let the bike run too long too hot and about half...

AAAAhhhrrr. I have a road registered 03 plate, Husa 470 with standard Dello carb. I have a massive problem with rough running. Under power the bike pulls like a nutter, but if I try to hold a regular speed at below half revs the bike will not hold a constant and feels like its miss firing or...