lean

Hello. As written in the title I have this situation: Rich at idle, lean off idle. Here is my set up: MJ 155 Taper E (perfect from 1/2 to 4/4). Length K clip 2 (perfect at 1/3). Needle diameter R (perfect to 1/4). PAS 1/4 = PAJ 45 the richest measure (lean to 1/8 ). PJ 35 PS 0.5 the...

I bought a 2011 Husaberg FS570, and though I have been riding since I could walk, this is a much different bike than I've ever had as well as being the newest. I bought it with about 62 hours on it and roughly 2400 miles, so practically brand new. The first two days it ran beautifully. Third...

Hi guys. I got my berg up and running with new liner, piston and valves. Now I have an issue with lean idle, where I have to set the idle screw to almost maximum when warm to run without choke, with choke the rpm rises drastically and I have to back off the idle screw multiple turns to have...

Hey guys, i've done a search but can't seem to find anyone with a similar issue. My bike appears to be running lean, occasionally bogs down on throttle pick up and backfires pretty bad when i roll off the trottle, but only seems to become apparent about 20-30 mins into a ride. I've changed the...

Hi there, Have A new toy 2008 fe450 supermoto conversion, and decided to look a spark plug and its very white , as example http://www.dansmc.com/Spark_Plugs/Spark ... talog.html 22-23 pictures Seems to be its to lean and I a little bit worry about that: at the moment I have checked: Spark plug...

Anyone want to throw out some ideas why my 09 FE450 that I have ridden since new, is suddenly running very lean? It will start but not idle, has a fantastic bog, and pops and stuters when you rev it up. I had something similar a while back, and removing and cleaning the throttle body fixed the...

Heja Chris#64! Great pic!! :thumbup:

I have just installed a Haltech AFR meter (Air Fuel Ratio) on my '03 fe400. I have an exhaust leak where the headers join the middle piece wich will be giving me a false reading but that will be rectified very shortly and before I play with my carbie. The AFR on Idle is reading spot on stoich...

hello :) i`m not very good in english but i have a problem with my berg, i have a 2004 husaberg fe650.the bike is orginal with orginal husaberg exhaust system and orginal jetting.but the spark plug is white and the bike is backfiering(pang pang when i let go of the trottle) is it...