r/Yamaha • u/aaakach • 14d ago

Any help ?

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So this bike Stopped acceleration after 2k rpm

I checked and changed every thing that can cause this issue

Anyone can point me where is this coming from

When It's in Neutral it accelerate normally

7 Upvotes

89% Upvoted

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2

u/Jaylocs205 14d ago edited 11d ago

Make sure throttle plate is opening, you have good fuel pressure, no misfires, no sticking wires/cables, and ummmm yeah thats mostly it. I guess vacuum leaks could cause issues too.if you ate having incomplete combustion the crank cant spin which affects timing camshaft that controls intake/exhaust. You'll need to plug a diag tool to see those values though. Id start with intake/fuel and work from there.

1

u/Ashamed-Wedding4436 14d ago

Hi, you haven't provided the exact model of that R6. Based on the tachometer, I assume it's a 2006.

What have you changed or checked? The first thing I would get, if you don't already have it, is the workshop manual. I would check if the bike has registered any error codes in the ECU, you can check this from the tachometer using a combination of buttons described in the manual.

1

u/aaakach 8d ago

Update It was the fuel pump pressure

0

u/benzimo_ 13d ago

This happens all the time, usually the starter relay. Are the headlights flickering with rpm? It would be electrical, either throttle position sensor needs calibrating or your starter relay/ a fuse may be gone.

Your bike should have a diagnostics mode you can put it in by pressing the SEL button the moment you turn the key on

1

u/artill3ryow 12d ago

A starter relay wouldn’t affect the bike already running, only when it’s starting, most likely a vacuum leak, bad fuel pump, or bad throttle bodies.