rejetted carb

daz1984 · 06-04-2009, 04:41 PM

i have upgraded my air filter to a cone style and rejetted my carb tried a 105 was too big so have now put in a 100 seems fine but i have to use a little bit of throttle to start my bike now can anyone help me with why this might be and any suggestions as to what i can do to rectify this any help would be much appreciated thankyou in advance

forchetto · 06-04-2009, 06:17 PM

Sounds as if your mixture is too weak. The larger main jet just takes care of the last quarter and wide open throttle conditions. The idle and mid-range are still too weak, specially with a pod type filter. Try turning the idle mixture screw to richer, an eighth to a quarter of a turn at the time. This should improve starting, warm up and idling. You can follow this by moving the needle one or two notches up by moving the circlip one or more grooves downwards. This should improve pick-up and mid-range.

daz1984 · 06-15-2009, 04:27 PM

i have re jetted and all seems pretty good now apart from now in low revs it kangaroos slightly now and again is this because of a lean mixture or something else not quite right any ideas anybody

thanks

06-04-2009, 04:41 PM	#1
daz1984 Join Date: May 2009 Location: hampshire,united kingdom Posts: 32	rejetted carb i have upgraded my air filter to a cone style and rejetted my carb tried a 105 was too big so have now put in a 100 seems fine but i have to use a little bit of throttle to start my bike now can anyone help me with why this might be and any suggestions as to what i can do to rectify this any help would be much appreciated thankyou in advance
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06-04-2009, 06:17 PM	#2
forchetto Join Date: Jul 2008 Location: Gijon, Asturias,Northern Spain Posts: 396	Sounds as if your mixture is too weak. The larger main jet just takes care of the last quarter and wide open throttle conditions. The idle and mid-range are still too weak, specially with a pod type filter. Try turning the idle mixture screw to richer, an eighth to a quarter of a turn at the time. This should improve starting, warm up and idling. You can follow this by moving the needle one or two notches up by moving the circlip one or more grooves downwards. This should improve pick-up and mid-range. __________________ Jincheng Monkey JC50Q-7 (two of them) Skyteam Dax replica ST110-6 (two of them) Zongshen ZS125-43 Qingqi QM200GY-BA Super Motard Yamaha Virago XV1100 Triumph Bonneville SE Qingqi QM110GY PGO Bug rider 250 Buggy
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06-15-2009, 04:27 PM	#3
daz1984 Join Date: May 2009 Location: hampshire,united kingdom Posts: 32	i have re jetted and all seems pretty good now apart from now in low revs it kangaroos slightly now and again is this because of a lean mixture or something else not quite right any ideas anybody thanks
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