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Poorly running Vrod

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Old Jun 3, 2025 | 01:26 PM
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Default Poorly running Vrod

Hi there, whilst riding with the bike (NRS) running perfectly, suddenly it developed a misfire and now, starts but only runs briefly then misfires and stops. It will start but will only idle for a few seconds and dies. Any attempt to rev the engine will cause it to stall? Any suggestions as to what it could be? I'm thinking 1. voltage regulator, 2. fuel pump. Any suggestions gratefully received. Getting desperate!
 

Last edited by ROVBOY; Jun 3, 2025 at 02:13 PM.
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Old Jun 4, 2025 | 06:14 AM
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A quick check to see if it's a fuel issue; hook a pressure gauge up to the Schrader valve. It should be very steady, if you see it swinging wildly the suction sock may be disintegrating or the line from the pump to the fuel filter may have cracked.

It's an easy check while looking for sources of the problem.

Good luck.

Originally Posted by ROVBOY
Hi there, whilst riding with the bike (NRS) running perfectly, suddenly it developed a misfire and now, starts but only runs briefly then misfires and stops. It will start but will only idle for a few seconds and dies. Any attempt to rev the engine will cause it to stall? Any suggestions as to what it could be? I'm thinking 1. voltage regulator, 2. fuel pump. Any suggestions gratefully received. Getting desperate!
 
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Old Jun 7, 2025 | 05:10 AM
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Originally Posted by ThunderTruck
A quick check to see if it's a fuel issue; hook a pressure gauge up to the Schrader valve. It should be very steady, if you see it swinging wildly the suction sock may be disintegrating or the line from the pump to the fuel filter may have cracked.

It's an easy check while looking for sources of the problem.

Good luck.
Thank you, thats a big help and a good starting point.
 
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