Hello folks,
so I have gotten a Yamaha EF600.
At first, it didn't run at all as fuel leaked from the fuel pump/cock located under the gas tank that pushes gas up to the carb, and cycles back to the tank. I cleaned the pump, as it was totally blocked, afterwards no leaks were to be seen and it cycled gas just fine.
But when it runs, at moments, every few sesconds the RPM (voltage with it) drops and I lose about 20-30V and it doesn't if under load or not. This can be noticed even when connecting a simple light to it as it flickers noticably. Also happens without load, but this time the voltage rises up to 240VAC but still drops down,
As I got it with really old fuel that stood a long time, I took our the carb, cleaned the bowl, the big screw with the hole holding the bowl, the main jet in the middle (one that looks like a flute). Overall it was very bad as most of the hols were stuck shut. Closed the carb, put it back on and the issue still isn't resolved and I'm out of ideas. The gaskets at the garb do seem a little thin to me, but definetly not broken. Sparkplug is like brand new. It's a bit more noticable when engine is hot.
Also put in fresh oil. Does it matter if my air filter is oiled or not? As I read somewhere that it actually has a meaning to it.
Thanks anyone in advance! (see video)
so I have gotten a Yamaha EF600.
At first, it didn't run at all as fuel leaked from the fuel pump/cock located under the gas tank that pushes gas up to the carb, and cycles back to the tank. I cleaned the pump, as it was totally blocked, afterwards no leaks were to be seen and it cycled gas just fine.
But when it runs, at moments, every few sesconds the RPM (voltage with it) drops and I lose about 20-30V and it doesn't if under load or not. This can be noticed even when connecting a simple light to it as it flickers noticably. Also happens without load, but this time the voltage rises up to 240VAC but still drops down,
As I got it with really old fuel that stood a long time, I took our the carb, cleaned the bowl, the big screw with the hole holding the bowl, the main jet in the middle (one that looks like a flute). Overall it was very bad as most of the hols were stuck shut. Closed the carb, put it back on and the issue still isn't resolved and I'm out of ideas. The gaskets at the garb do seem a little thin to me, but definetly not broken. Sparkplug is like brand new. It's a bit more noticable when engine is hot.
Also put in fresh oil. Does it matter if my air filter is oiled or not? As I read somewhere that it actually has a meaning to it.
Thanks anyone in advance! (see video)