Tale of two carburetors - 06 FE450e Linea-berg Mod report

When I bought My new 06 Fe450e a couple months ago, the bike was jetted by Dan at motoXotica, he had richened up the stock Husaberg jetting to

48pj
178mj
needle one clip richer then stock
FS 2 turns.

Bike ran great 0-5000 feet in 50-75F. electric sewing machine fun

15-20 hours bike gets more bottom end, bike is nice....noticed just a flutter down low and engine brake pop slight once or twice........... decide time to go to the Jedi master Dale Lineaweaver as he lives near by

I stripped out my Carb and went to Dales shop. Met Dale, had a great visit, really enjoyed watching him install his mod on my carb and listening to his thinking. Here is the man at work;

Dale at work on my Fe450 e carb

dales presciption

his needle 4th clip from the top, mid way on the 7 clips
48/50 pj special Dale pj
150 mj
FS 1.5 turns
new adjustable P air screw 1/2 turn
AC pump rod gone.

I get home, install the carb and run the bike down and out my back alley.........seemed a little rough? hard to start too but had more pep in the throttle. bike was just ok.......Decide I have to wait till the weekend to go riding. I take the bike this weekend to one of my favorite spots in the woods at 4000 ft. It's cold out 40F. Bike starts fine..........but..then I try to ride the bike and well this picture tells the story here I am trying to FIX my Carb :twisted: 8O

the BigBob lineaweaver field Mod

:hang: Bike was a little lean, cough up and sputtered :smirk: like a pregnant goat with pneumonia :lol: it took me keeping the choke on to run at all. I dropped the clip two places , raising the needle to get more fuel and bingo bike ran well all day. 55 miles of great trail riding. YES the bike is more lively and "brighter" . Dale's mod is an enjoyable jetting mix for sure. The good news is I can feel the Lineaweaver magic force at work in my bike...... we just need to get his kit, designed for the 550/ 650 more dialed in to my Fe450e and my location riding, etc

Me and Dale are now working thru emails on a better solution for the my Fe450e. Basically we probably just need to increase that main jet from his 150 to a 160....or more till I can drop that needle one clip and get back in the 5th position. ill reportr on our progress. I was gonna wait till We got it perfect, but I couldn't resist telling the story

I'll let dale, if he chooses to, explain the rest in technical terms. Fun stuff I'm on the cutting edge! Thanks dale, we'll get it dialed in.

Re: Tale of two carburetors - 06 FE450e Linea-berg Mod repor

I live at 200ft and there is a ride park near by. when its done, Dale tole me the jetting will be good from like 0-6000 ft.....I can test ride it at 0-5000 ft this winter in 40-60F. It was feeling good all my ride just like it wasn't quite there yet...........I'm definitely looking forward to test ride # 2 with a larger main jet and the clip back up one slot

But although I ride enough to be able to express my thoughts, I'm no experienced pilot that knows the finer things. I'll do my best. It's also pouring out side rain, wind and wet, plus I need to drive to LA for Christmas. will be a while till I can ride and report again...first I have to go pick up some jets.

stay tuned (bad pun) :wink:

I need to check my valves too while I'm in there messin around. It's a big deal for me to tackle simple things....I want the bike to just run.I need a bike maid, like I have for my house. I could crack the whip on her.......get out there biotch and change my main jet and check/adjust my valves.....then haul the bikeout and test ride it again for daddy. :whipitgood:

Re: Tale of two carburetors - 06 FE450e Linea-berg Mod repor

I picked up 3 main jets yesterday, 160,162 and 165.......small differences but heck Dan had em so I bought them all. I'm gonna install the 162 and raise the clip one to the 5th slot. The bike was so not happy at middle clip and 150 mj, that for now I'm convinced it needs fuel, so I'll start with a 162 and that 5th clip

I'll do this as soon as I remove that damn pencil. At least I know how to can get to, drop, rotate and jet a carb. I'm not a complete useless desk bound pencil pushing engineer. :lol:

Re: Tale of two carburetors - 06 FE450e Linea-berg Mod repor

thank you but, the bike ran pretty good at 6th clip and 150, so if I go to a 160 or 162, Ill need to move the clip, confident of that.

These BeRG boots are so suptle easy to work with. Im ok with Carb work

Re: Tale of two carburetors - 06 FE450e Linea-berg Mod repor

Taffy said:

as a general rule (that i made up so lineaweaver can argue the toss on this) if you go up 5 or down 5 on the MJ you are worth .5 a clip position in the other direction. so a 160-162MJ will leave you back at C4 and as happy as larry.

regards

Taffy

Click to expand...

well if that's fairly accurate approximation of my situation, and my gut says it is from past jetting experience, what my goal is to get the clip off of 6c and back up some towards 4. I suspect because of the running quality of my 150mj , 6 th Clip ride test day, that simply upping the mj size a full 10 from 150 to 160 without a corresponding clip rise at least one step to 5the C, then I will be rich.

with that 10 = 1C approximation all I will be doing with a 160/162 and moving from 6 th to 5 th C is an equal trade so to speak. IF this new mix does anything different will be my judgement come riding day.

since this change is so minor perhaps I should go with a more radical change at first with a 165 and 5thC..........or just go 160 and leave it at 6c but I'm going with Dale's first reaction.........well actually his second, he first gave me a dissertation on how to tune my bike, when I replied HELP I need a course of action he then suggested the 160 and 5 th clip as a starting point.........my gut feel to be honest is you jetting gurus like to be as lean as possible and since too lean was my problem, I'm choosing to over shoot dale's second prescription by a tad and go with 162, 5th C as my next test ride.

that was my raw thinking now exposed for commentary......but this is my move. I can change it again. I danced arround a lot on my husky jetting too............I'll get there. This is something I understand the basics enough to feel confident I can do it.

without experience, eduaction, a computer, dyno and hydrocarbon analyser all I can to is adjust and ride it.

Re: Tale of two carburetors - 06 FE450e Linea-berg Mod repor

installed the 162 main jet and 5th clip setting

bike is running great. 200ft, 60F, rode the bike around block, starts first kick, rides great, runs smooth no pops no bogs all clean

I think we got it, we'll report at 4000 ft next week.

FS back at 1.5 turns.

all good. Ready to ride>