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FCR problems

B

BelgiqueBasterd

Joined Oct 2006
381 Posts | 1+
Belgium
Fitted an 41 Fcr to my 2002 650 Husa, but am having starting problems now.

I got it started fairly easy, but it dies every time after a couple of seconds, if I touch the throttle it dies immediately. I've played with the idle screw from min to max with no difference.

I finally kept it running, and after about 40s the headers were red hot. Probably a jetting problem?

Anybody got a suggestion as to where I start, needle, starter jet,...?



Thanks for you time, Christof.

Put the new decals on today, so might as well show them of a bit. Black tank and frame gonna happen as soon as I find the $$$$$ for it :) engine work kinda ruined me :D

288571058.jpg


288571064.jpg
 
:roll: :roll: :roll: :roll:

no idea! no idea at all....

:wink: :wink: :wink: :wink:

needle code please, clip position, MJ, PJ, marital status, next of kin please...

regards

Taffy
 
Taffy said:
:roll: :roll: :roll: :roll:

no idea! no idea at all....

:wink: :wink: :wink: :wink:

needle code please, clip position, MJ, PJ, marital status, next of kin please...

regards

Taffy
Click to expand...

Sorry my mistake :)

Needle code OB DVT (think this is the code, not sure :D )
clip is 3d from top
Main jet is 182
Pilot don't know
Starter jet 50
 
RE: Re: FCR problems

well the only important thing is the 'T' in DVT. have you any other needle there for a keihin FCR? a 'P' a 'Q' or a 'R'

blow the carb out again paying particular a\ttention to the primary circuit through the front (probably jet coded as a #75 or a #100) and up through the pilot screw underneath.

regards

Taffy
 
BB

this is the same bike that was dyno'd to perfection right?

regards

Taffy
 
Taffy said:
BB

this is the same bike that was dyno'd to perfection right?

regards

Taffy
Click to expand...

Don't know where you got that, must be some kind of misunderstanding because my bike has not been on a dyno.

It started reasonably well with the dellorto (anywhere between 2 to 10 kicks to get it goin).
 
chilledspode said:
Taffy, my good man

Did you miss that part about a 182m... :D

Cheers

Mark
Click to expand...

Ok I'm guessing something is up with the 182 thingy, since everyone is laughing at it. I got the parameters from the previous owner who had this carb on his 2004 650 husa wich started and ran great. So I'm not sure what everyone is laughing at :D
 
now come on! i've had a go at you before for that 182 and i'm bloody sure you validated it to me. you either said some hot-shot had said that it was thee jet or that you had dyno'd it and therefore your results were unimpeachable!

either way, i've known for a long while that you had the 182 and that there was no arguing about it!

regards

Taffy
 
BelgiqueBasterd said:
chilledspode said:
Taffy, my good man

Did you miss that part about a 182m... :D

Cheers

Mark
Click to expand...

Ok I'm guessing something is up with the 182 thingy, since everyone is laughing at it. I got the parameters from the previous owner who had this carb on his 2004 650 husa wich started and ran great. So I'm not sure what everyone is laughing at :D
Click to expand...

Taffy needs to be the one to give you the straight talk on this topic but in general anything over a 160m in an FCR and he'll go into rant mode :D Personally I can't fault him - my bike is really quite rich with a 160m.

I do wish we had resolved if there was a meaningful difference between US/Canadian fuel and the EU stuff and if it affects jetting.

Taffy should be along shortly to elaborate

Cheers

Mark
 
sparks is down to 145 now and his lineaweaver needle is on C1 like mine. i could go leaner still i believe. i need to mention though that we both run 150-160MAJ as well which makes a slight difference.

JD and i agreed that you guys needed the next jet up to europe so our 145 would be your 148. JD is a yank from auburn in texas and knows just a little about it.

i gave him his nickname.... he used it for his business name!

regards

Taffy
 
Taffy said:
now come on! i've had a go at you before for that 182 and i'm bloody sure you validated it to me. you either said some hot-shot had said that it was thee jet or that you had dyno'd it and therefore your results were unimpeachable!

either way, i've known for a long while that you had the 182 and that there was no arguing about it!

regards

Taffy
Click to expand...

Have no Idea what you are talking about, I've just installed this carb three days ago, so I do not know when we would have had this talk! You are mixing me up with another person Taffy!
 
Did some test riding this afternoon, bike starts well (as long as I don't give it the double throttle before kicking, if I do do that, now way it'll start) 1/2 kicks.

When driving it has got a terrible throttle response, when I open the throttle, it start stuttering ( :) ) and then all of a sudden boom, power comes in and it revs smoothly to the top.

I'm thinking the acc pump isn't working properly, there is hardly any movement in the pump shaft. I've uploaded a vid please check it out and let me know if what you see is normal or not

http://www.youtube.com/watch?v=pzDVurcKmJo
 
Taffy said:
sparks is down to 145 now and his lineaweaver needle is on C1 like mine. i could go leaner still i believe. i need to mention though that we both run 150-160MAJ as well which makes a slight difference.

JD and i agreed that you guys needed the next jet up to europe so our 145 would be your 148. JD is a yank from auburn in texas and knows just a little about it.

i gave him his nickname.... he used it for his business name!

regards

Taffy
Click to expand...

Thanks for that Taffy - I must have missed the conclusion of that thread. I have had JD's little jetting 'tool' for several years now - nice piece of work that.

Cheers

Mark
 
:D

Main is 182

Pilot 50

Starter 100

Needle ob dvt: now 2nd from the bottom, but will change that to 3d from the top, some people suggested to me that this needle setting is the cause to the spluttering at low rpm's.

Bike starts well if I skip the 2x throttle before starting, if I do do the 2x throttle before starting it won't start.

When idling the headers get red hot within one minute.

I will try and get this bike dynoed by a Husa 'specialist' to get the carb tuned to perfection. (then we can have the conversation about the dyno :) I think your mind works so fast that you already think in the future :D )
 
i ran a DMT which means that the needles are identical as long as they are 3 clips apart. i ran different MJ so the needle clips i ran are irrelevant for you at present.

i suggest the middle clip of 7 will get you through the hesitation.

but everything needs to be leaned off.

i got down to 158MJ and DVR clip 7 so i had to start a new needle code and got the DMS and DMT.

up to you but even when i ran a 170 MJ it only needed a 35 or 38PJ.

that won't be a 100 starter jet under the carb. it will be a lower number. the starter jet is next to the main and the pilot under the carb. on the belmouth face you'll have a PAJ and a MAJ which will probably be a #100 and #200 respectively.

regards

Taffy
 
just as taffy says, its too rich everywhere but the needle. i just finished working on a ''02 650 with that same fcr and it ended up with the 85 starter jet, 155 main (at 3800 ft it was ok), and a 40 pilot (would have gone lower but was limited selection at the vendor i used). that pilot jet is different than most fcrs. the easist (but not cheapest) place to get it is at a kawi dealer. lean it down then quick as possible check your timing with a timing lite just in case.
your ap shaft movement looks the same as the one i had.
also, out of curiosity, any problems with the top mounted throttle crank hitting the tank?
 
Ok, guys, then tell me this thing - you're talking about leaning, leaning, leaning. Which means going to small main jets and so on. However, I have a 2005 FE450e with the whole Akrapovic system fitted. As I know my dealers pretty well, I asked them to send an e-mail to the factory thus asking how should I jet my Berg with Akrapovic on it to make the best performance. This is what I got from the factory:

Main jet - 185 summer, 190 winter (as in the Baltics we have cold winters around -20 Celsius)
Pilot Jet - 45
Screw - 1.5 turns
Needle - OBDVR one up from the middle

I use the bike at the sea level. So what can you tell about that?
 

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