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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
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Joined: Fri Aug 31, 2018 5:18 pm
Posts: 600
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 70 main jet needle down 1 clip 40 mph
Athena Sport BBK waiting to go on

2004 Vino Malossi sport 70cc Malossi Wild Lion pipe malossi multivar 6.5 sliders green polini clutch springs stock carb 75 mikuni main one clip rich 47.5 mph Michelin S1 90/90/10 rear tire Michelin S1 3" x 10 up front

2004 Zuma Malossi sport 70 cc Technigas next r 2008 zuma torque driver polini high speed variator 5.5 grams sliders malossi delta clutch yellow contra yellow clutch springs Stock Carb 84 main jet 46 pilot jet needle 1 clip rich stock athena 14/42 gears 11 to 1 final ratio 56 mph

2005 Eton Beamer (Taiwan Zuma Clone) Airsal sport 70cc 9200 peak rpm top speed 42 77.5 mikuni jet needle 1 clip rich (sold)

Tue Dec 04, 2018 9:22 pm
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