tzr 125 starting problems

[scooke]

hay everyone right i cant figure out why it takes so long to start my 1990 tzr125.

* fuel on
* ignition on
* new spark plug
* adjust choke to weather conditions

i am completely out of ideas on how to correct this problem so any ideas or theorys would be really welcome

thanks scott
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hay guys i think this is right lol...

[Nope.]

Once it starts does it rev freely and idle ok?
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Former: Derbi GP1 50, Sachs XTC 125, Suzuki GSXR 400 GK73A, Kawasaki ZX7R, Suzuki DR250, Yamaha RD350
Current: 2011 Yamaha XT660Z Ténéré, 2003 Yamaha YZR-R1 5PW (In Build), 2009 Kawasaki ZZR1400

[scooke]

hi umm no it doesnt i have to keep a hand slightly on the throttle for a minute or 2 so it warms up a bit but soon as it is warm it idles ok. i have tried adjusting the idle screw but to no avail. scott
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hay guys i think this is right lol...

[Nope.]

The main jet could be partially blocked. Take the jet out of the carb and spray some carb cleaner in the jet and then blast it with compressed air. Reassemble carb and try again.
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Former: Derbi GP1 50, Sachs XTC 125, Suzuki GSXR 400 GK73A, Kawasaki ZX7R, Suzuki DR250, Yamaha RD350
Current: 2011 Yamaha XT660Z Ténéré, 2003 Yamaha YZR-R1 5PW (In Build), 2009 Kawasaki ZZR1400

[scooke]

ok i shall try this in the morning. sounds silly but i thought it could also be the starter motor? it is a old bike and im trying to re-build it correcting on my way.

thanks scott
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hay guys i think this is right lol...

[Nope.]

If it is actually cranking over and sparking I doubt it would be the motor. Is the battery holding charge? Put a multimeter across the terminals and see what it says. It should be around 12 Volts. If its not charge up the battery and try again.
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Former: Derbi GP1 50, Sachs XTC 125, Suzuki GSXR 400 GK73A, Kawasaki ZX7R, Suzuki DR250, Yamaha RD350
Current: 2011 Yamaha XT660Z Ténéré, 2003 Yamaha YZR-R1 5PW (In Build), 2009 Kawasaki ZZR1400

[scooke]

it is round 12v and it does hold the charge i have checked this and it is a new battery. ok sorry i am new to re-building bikes this is my first project as it were
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hay guys i think this is right lol...

[N cee thirty]

air filter clean?
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

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