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Stalling from idle

F

Freaky

Joined Apr 2008
204 Posts | 0+
Worcestershire England
Hi all, annoying problem with my 650 advise appreciated.
Lets say I'm sat at traffic lights and it's been ticking over for 20 seconds or more, when I slowly open the throttle to pull away sometimes it stalls. If I were to rev it quick then it may just bog slightly then pick up. Have played with the mixture but doesn't seem to do a lot eg. the revs don't seem to rise as they should when the screw it wound out. Plug gap ok as is the cap. I can just wind the tickover up and it gets better but needs to idle unnaturally high.

Cheers chaps
Freaky
 
DaleEO said:
Have you tried raising the needle one clip?
Click to expand...

Hi Dale its me again. I just got some motorex today 2ltrs of Top speed 10/40w is this stuff any good fro my berg? and again about the gearing i wanna put a 15/38 or would u recomend a 15/40 i'm looking for pulling power.
Thanks Dale.
 
simple anwser, don't open the throttle slowly.......... soon you'll be wearing a high vis vest when your out!!
 
i would start by cleaning the carb out and blowing out all the orifices. make sure you blow back through the carb only. check you have the spring c/w the washer and 'O' ring. i would then try resetting it agion and possibly come out half a turn as the answer. failing that, as daleO says: raise the needle once. not though that if this has a bad effect on the 4/5th gear roll on that you should go back to as was.

regards

Taffy
 
Thanks Taffy and Daleo, will pop the carb off today and give it a clean.

Plumbob, I'll have you know, I wear a high vis vest on all occasions whilst ridding my motorcycle. I ride in accordance with the law and wave to all volvo drivers. You on the other hand sound like one of these young yobs who give law abiding riders like myself and 99% of all others on here a bad name, shame on you, bet you've got a tinted visor and stick on furry ears on your helmet.
 
Thanks Taffy and Daleo, will pop the carb off today and give it a clean.

Plumbob, I'll have you know, I wear a high vis vest on all occasions whilst ridding my motorcycle. I ride in accordance with the law and wave to all volvo drivers. You on the other hand sound like one of these young yobs who give law abiding riders like myself and 99% of all others on here a bad name, shame on you, bet you've got a tinted visor and stick on furry ears on your helmet.
 
LMAO Freaky, how many fingers do you wave at the Volvo drivers though?

Hows your carb now?
 
I normally wave at them with with the tips of my thumb and fore finger touching to form a circle, the motion can be quite frantic depending on how far they have just pulled out of the side road in front of me.
Cleaned the carb out yesterday, nothing obvious in there that would cause a blockage but will try in out today, if no better than will lower the clip on the needle one slot.
 
Ah you mean the divers signal for "OK"................... oh not that one.

Enjoy your ride, think i might put my supermoto wheels back on and go for a play round the local ind. estates.
 
Running fine now, over an hours diding and didn't stall once. Thanks Taffy and Daleo, thanks Plumbbob for your invaluable input as usual.

Regards Freaky
 
on saturday I did first ride on my local track.

After a a 50 m uphill (3 gear)it goes through two trees ( nearly stillstand) and then 20 m downhill (I roll down in second gear with closed throttle and the brakes).
At the bottom there is a stream crossing, muddy,rocky and all in a long turn.
I´m in the first here and when I will open the throttle with "feeling" the engine stalls.

I think it is too lean in that moment after using the engine brake before.

What is the right trial:
Make the idle mixture richer?
Maybe a litte more idle is possible.
Or the needle one clip higher?

The bike starts cold perfect and hot very good as well.

(Don´t touch a running system....)
 
get the engine very warm with a good ride ok? then turn the fuel off and listen to it idle. if the revs go up just before it stops then it was rich. if the revs die, die, die all the way till it stops then it was lean. what is your needle code and PJ?

regards

Taffy
 
To get 100% sure I have to look in my chats at home...

Sure is the OCDMS

and for the rest this should be the state of the affairs:

remember your email from 5. may 2008:
"so stick to 38 PJ and try to have the PAJ at just #60 or 3/8 turn out from closed."

regards,
armin
 
This is what I have found in my old emails.

158 MJ
OCDMS #3
PJ 38
PA Screw nearly 1/2 turn out.
Fuel Screw 2 3/4

Remember: I live at 630 m NN.
And will go up to 1300 m NN
 
2 things to try
pilot screw all the way back in and out to 1 and start all over again,
drop the MJ to 152-150 and if the top end is better try to raise the needle.

regards

Taffy
 

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