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Bad hot starting

E

ElSnorro

Joined Aug 2007
470 Posts | 13+
The Netherlands
I have a husaberg FC550 SM with a keihin FCR41mm on it.
Cold it starts like a charm (2 kicks, no choke needed), but when hot i almost cant start it...

Anyone have some tips for me? I have checked my valves by the 1/6th turn method and will post my carb settings tonight. I also have a Sparks rewound stator, Taffy's kickstart mod and a IXU24 plug.

Thanks
 
your too rich at idle, that makes them a pig to start hot.

regards

Taffy
 
Re: RE: Bad hot starting

Taffy said:
your too rich at idle, that makes them a pig to start hot.

regards

Taffy
Click to expand...

thanks for the tip :)
So a smaller pilot jet should do it?
Or a slower starter jet?
 
RE: Re: RE: Bad hot starting

My carb settings:

Keihin FCR41mm
MJ 175
starter jet (?) 42
OBDTR
Clip in the middle
Pilot jet (?) 85

Any tips for a better hot starting husaberg ? :)
 
RE: Re: RE: Bad hot starting

Anybody some tips to help my bike hot-start better?

Or should I just use a 165MJ? (read the doc, and it says the MJ in a FCR is helping all the way?)
 
Re: RE: Re: RE: Bad hot starting

ElSnorro said:
Anybody some tips to help my bike hot-start better?

Or should I just use a 165MJ? (read the doc, and it says the MJ in a FCR is helping all the way?)
Click to expand...

Hi ElSnorro,

I think you may have got mixed up with the jets here, you will probably find that 42 is the PJ and 85 Starter jet.
You could go down to a 40 or 38 on the PJ
Check the setting of the FS under the carb, number of turns out. When I was sorting out my jetting I found the R straight of the needle was to rich, you could try a S or a T, this will aid better starting when hot.
I used mine for road use and found the DVT needle worked very good, but we have all got own preferences.

Regards

Sparks.
 
Re: RE: Re: RE: Bad hot starting

ElSnorro said:
Anybody some tips to help my bike hot-start better?
Click to expand...

doesn't that carb have a red hot start button, right next to the choke, which you can pull out to assist in your hot starts?
i think vegasplayer added a remote lever for the hot start.

tuts
 
Re: RE: Re: RE: Bad hot starting

tuts said:
ElSnorro said:
Anybody some tips to help my bike hot-start better?
Click to expand...

doesn't that carb have a red hot start button, right next to the choke, which you can pull out to assist in your hot starts?
i think vegasplayer added a remote lever for the hot start.

tuts
Click to expand...

No hot start button on my carb, only choke.

@Sparks

Thanks mate!
will try that.
I also have a honda NCVS needle to try, so will do that too :)
 
Re: RE: Re: RE: Bad hot starting

sparks said:
ElSnorro said:
Anybody some tips to help my bike hot-start better?

Or should I just use a 165MJ? (read the doc, and it says the MJ in a FCR is helping all the way?)
Click to expand...

Hi ElSnorro,

I think you may have got mixed up with the jets here, you will probably find that 42 is the PJ and 85 Starter jet.
You could go down to a 40 or 38 on the PJ
Check the setting of the FS under the carb, number of turns out. When I was sorting out my jetting I found the R straight of the needle was to rich, you could try a S or a T, this will aid better starting when hot.
I used mine for road use and found the DVT needle worked very good, but we have all got own preferences.

Regards

Sparks.
Click to expand...

Thanks for the tips :)
Will try a NCVS (honda) needle and a 72 Starter jet this weekend. Cant get my hands on a PJ 40 or 38.
Do you think a 72 starter jet will help too? Or will that be too lean?
 
Re: RE: Re: RE: Bad hot starting

ElSnorro said:
sparks said:
ElSnorro said:
Anybody some tips to help my bike hot-start better?

Or should I just use a 165MJ? (read the doc, and it says the MJ in a FCR is helping all the way?)
Click to expand...

Hi ElSnorro,

I think you may have got mixed up with the jets here, you will probably find that 42 is the PJ and 85 Starter jet.
You could go down to a 40 or 38 on the PJ
Check the setting of the FS under the carb, number of turns out. When I was sorting out my jetting I found the R straight of the needle was to rich, you could try a S or a T, this will aid better starting when hot.
I used mine for road use and found the DVT needle worked very good, but we have all got own preferences.

Regards

Sparks.
Click to expand...

Thanks for the tips :)
Will try a NCVS (honda) needle and a 72 Starter jet this weekend. Cant get my hands on a PJ 40 or 38.
Do you think a 72 starter jet will help too? Or will that be too lean?
Click to expand...

You only need to change the starter jet if you are having problems starting from cold, the #85 will be fine.
What is your fuel screw set at, turns out?.

Regards

Sparks.
 
Re: RE: Re: RE: Bad hot starting

sparks said:
ElSnorro said:
sparks said:
ElSnorro said:
Anybody some tips to help my bike hot-start better?

Or should I just use a 165MJ? (read the doc, and it says the MJ in a FCR is helping all the way?)
Click to expand...

Hi ElSnorro,

I think you may have got mixed up with the jets here, you will probably find that 42 is the PJ and 85 Starter jet.
You could go down to a 40 or 38 on the PJ
Check the setting of the FS under the carb, number of turns out. When I was sorting out my jetting I found the R straight of the needle was to rich, you could try a S or a T, this will aid better starting when hot.
I used mine for road use and found the DVT needle worked very good, but we have all got own preferences.

Regards

Sparks.
Click to expand...

Thanks for the tips :)
Will try a NCVS (honda) needle and a 72 Starter jet this weekend. Cant get my hands on a PJ 40 or 38.
Do you think a 72 starter jet will help too? Or will that be too lean?
Click to expand...

You only need to change the starter jet if you are having problems starting from cold, the #85 will be fine.
What is your fuel screw set at, turns out?.

Regards

Sparks.
Click to expand...

Ok.
Fuel screw is 2,5 turns out now.
 
Re: RE: Re: RE: Bad hot starting

Ok.
Fuel screw is 2,5 turns out now.[/quote]

OK, a tad more than the norm, start at 1 1/2 out and test up to 2 turns out, you will know if you have gone to far.

Regards

Sparks.
 

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