spyd3rm4n
Well-Known Member
I previously had an issue where the bike (2004) would idle and rev fine, but as soon as I tried to ride it would bog/sputter badly when I gave it throttle. I found water in my fuel system so today I got all of the water out, got the tank perfectly clean and made sure I got fresh clean fuel out of all the float bowls. Installed new spark plugs, did an oil change, and coolant flush too.
Today I started it up and it idled fine and revved in neutral without any issues. As soon as I took the bike off the center stand and put it in gear it started intermittently sputtering again just like before. This time it was dark out and I realized the entire dash was flickering, like intermittent complete loss of power.
I thought maybe a dead/weak battery so I swapped it with the fresh battery on my 2002 FZ1 which I was just riding last weekend. The problem is still there with the new battery.
Could this be a sticking kickstand switch or a faulty tipover sensor? The mechanical part of the kickstand switch was gummy and not moving freely so I lubricated it and it now moves smoothly when I raise and lower the kickstand, but I don't know about the contacts inside. My next step is to bypass the switch (disconnect the switch and use a jumper wire.)
Has anyone had these issues before? What else should I be focusing on? I checked the infamous white connector. It isn't melted but there was some minor corrosion - a white coating. I sanded the pins and sprayed some electrical contact cleaner on them.
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UPDATE - I think it was a corroded electrical connector. Several of the connectors with the heavier gauge wires (power) had some visible white and bluish crust on them. There's a bundle of connectors under the tank and the red one had a few pins that were really bad. Sprayed with some contact cleaner that was recommended by a guitar guy and upon reconnecting everything today the bike starts and runs great now.
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UPDATE 2 - Problem is back, this issue is happening more than before and almost left me stranded at work. Updated post below.
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UPDATE 3 - Seems to be running great now. The fuse on the starter solenoid was loose and one of the blades was worn. If you remove this fuse there's no ignition power.
Today I started it up and it idled fine and revved in neutral without any issues. As soon as I took the bike off the center stand and put it in gear it started intermittently sputtering again just like before. This time it was dark out and I realized the entire dash was flickering, like intermittent complete loss of power.
I thought maybe a dead/weak battery so I swapped it with the fresh battery on my 2002 FZ1 which I was just riding last weekend. The problem is still there with the new battery.
Could this be a sticking kickstand switch or a faulty tipover sensor? The mechanical part of the kickstand switch was gummy and not moving freely so I lubricated it and it now moves smoothly when I raise and lower the kickstand, but I don't know about the contacts inside. My next step is to bypass the switch (disconnect the switch and use a jumper wire.)
Has anyone had these issues before? What else should I be focusing on? I checked the infamous white connector. It isn't melted but there was some minor corrosion - a white coating. I sanded the pins and sprayed some electrical contact cleaner on them.
---------
UPDATE - I think it was a corroded electrical connector. Several of the connectors with the heavier gauge wires (power) had some visible white and bluish crust on them. There's a bundle of connectors under the tank and the red one had a few pins that were really bad. Sprayed with some contact cleaner that was recommended by a guitar guy and upon reconnecting everything today the bike starts and runs great now.
---------
UPDATE 2 - Problem is back, this issue is happening more than before and almost left me stranded at work. Updated post below.
----------
UPDATE 3 - Seems to be running great now. The fuse on the starter solenoid was loose and one of the blades was worn. If you remove this fuse there's no ignition power.
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