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 Zuma 50F stalling at lights 
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Joined: Mon Dec 03, 2018 12:56 am
Posts: 1
Post Zuma 50F stalling at lights
Heya, I have a 2012 Yamaha Zuma 50f and while waiting at traffic lights it will die when I give it gas if I am idling for 1 minute or more and the only way to start it again is to turn the ignition on and off, can anyone help me diagnose this asap please.


Mon Dec 03, 2018 1:00 am
Scooter Addict

Joined: Fri Aug 31, 2018 5:18 pm
Posts: 158
Location: Fox Valley Wisconsin
scooters and mods: 2 2004 Vinos 2004 Zuma
Post Re: Zuma 50F stalling at lights
A friend of mines 125 s had a fuel pump issue that he had a similar issue with .
Your bike is fuel injected like his .
He went through checking all the throttle positions sensors pulled the cylinder head and finally got to the fuel pump.
But i would start with something easier .
Do you have a copy of the service manual it is available on the forum .
Has this just started happening or is this bike new to you .
It maybe something as easy as a cracked breather hose .

2004 Vinos Derestricted exhaust and variator stock carb with mikuni 75 main jet needle down 1 clip 40 mph
2004 Zuma 45 mph Dual Headlight Technigas next r replaced the Malossi Wild lion exhaust for now polini 107 mm clutch polini green springs high speed variator 84 main jet 46 pilot jet needle 1 clip rich
2005 eton beamer airsal sport 70cc 9200 peak rpm top speed 40 77.5 mikuni jet needle 1 clip rich

BBKs all around on the way

Tue Dec 04, 2018 9:22 pm
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