Electrical (Possibly Batt or Stator) & Fuel Delivery Problems
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From: Phoenix, Az.
Electrical (Possibly Batt or Stator) & Fuel Delivery Problems
Good afternoon everyone!
I posted this up in my model specific section too, but I feel it may be a little more general and could help a larger group of people.
I recently purchased a 1997 CBR600F3 and I'm hoping to bring it back to life.
The bike runs and starts well!
However, I have run into some problems.
The battery, when I first bought it, was dead.
We had to jump it. No problem. One 15mi ride home later, the battery was charged. It would start all night with no problems.
Even this afternoon it started.
However, I took for a spin around the block and it died on me.
Got it to start back up, but only for a split second and that was with the choke on and I couldn't give it gas or it would die.
Tried to get it going, but then it died and wouldn't restart. I drained the battery in hopes of restarting. Now it sits with a dead battery in my garge.
So, first things first, is it safe to assume I need a new battery?
I mean the battery did charge on the ride home after purchase, but it didn't hold the charge for very long. So, it couldn't be the stator could it since it did charge?
Second issue.
When cruising, maybe 35mph in second gear or higher, my bike cuts out/bogs. Almost as if there is zero fuel getting to the engine.
If I pop in the clutch, it will die. I have to keep the engine spinning to keep it alive.
Eventually the fuel comes back, but it really doesn't like the higher RPMs especially when I'm throwing back the throttle.
So a few things came to mind, dirty carbs, clogged fuel filter, or bad fuel pump.
When it would bog, I would reach my hand down to the rubber side of the fuel pump to see if the contacts where still moving. I definitly felt vibration so I'm not sure if it's bad contacts or not.
However, the pump has developed a nasty leak that needs to be fixed asap. Anyone tried bypassing their pump? Bad idea?
I'm at a loss here. I've done plenty of searches but they tend to lead me in circles.
Any thoughts?
-Brian
I posted this up in my model specific section too, but I feel it may be a little more general and could help a larger group of people.
I recently purchased a 1997 CBR600F3 and I'm hoping to bring it back to life.
The bike runs and starts well!
However, I have run into some problems.
The battery, when I first bought it, was dead.
We had to jump it. No problem. One 15mi ride home later, the battery was charged. It would start all night with no problems.
Even this afternoon it started.
However, I took for a spin around the block and it died on me.
Got it to start back up, but only for a split second and that was with the choke on and I couldn't give it gas or it would die.
Tried to get it going, but then it died and wouldn't restart. I drained the battery in hopes of restarting. Now it sits with a dead battery in my garge.
So, first things first, is it safe to assume I need a new battery?
I mean the battery did charge on the ride home after purchase, but it didn't hold the charge for very long. So, it couldn't be the stator could it since it did charge?
Second issue.
When cruising, maybe 35mph in second gear or higher, my bike cuts out/bogs. Almost as if there is zero fuel getting to the engine.
If I pop in the clutch, it will die. I have to keep the engine spinning to keep it alive.
Eventually the fuel comes back, but it really doesn't like the higher RPMs especially when I'm throwing back the throttle.
So a few things came to mind, dirty carbs, clogged fuel filter, or bad fuel pump.
When it would bog, I would reach my hand down to the rubber side of the fuel pump to see if the contacts where still moving. I definitly felt vibration so I'm not sure if it's bad contacts or not.
However, the pump has developed a nasty leak that needs to be fixed asap. Anyone tried bypassing their pump? Bad idea?
I'm at a loss here. I've done plenty of searches but they tend to lead me in circles.
Any thoughts?
-Brian
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Joined: Jul 2010
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From: Phoenix, Az.
Follow-up:
So, I bypassed the fuel pump to trouble-shoot.
Bike runs FLAWLESSLY. It took about half a mile of driving to re-fill the lines, but after that it worked great, even all the way up to redline!
No more bogging or cutting out.
As for the battery, it just needs to be charged or replaced.
The bike has been sitting for a while, and, as a result, drained the batt.
After jumping it and driving it for a few miles, it starts up great every time.
Hopefully this can help other people too.
-Brian
So, I bypassed the fuel pump to trouble-shoot.
Bike runs FLAWLESSLY. It took about half a mile of driving to re-fill the lines, but after that it worked great, even all the way up to redline!
No more bogging or cutting out.
As for the battery, it just needs to be charged or replaced.
The bike has been sitting for a while, and, as a result, drained the batt.
After jumping it and driving it for a few miles, it starts up great every time.
Hopefully this can help other people too.
-Brian
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Joined: Apr 2008
Posts: 2,492
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From: Northern Michigan
good to share what you found. Im sure it will help some others.
Just a suggestion on the battery, I would wait and ride it for a bit before buying a new one. If you were starting the bike and not letting it run long enough to recharge, that may be why it died on you. These batteries are very small and really don't have a whole lot of starts in them. If you start the bike, let it idle for a bit then shut it off, start it again, let it idle, shut it off, and did this several times.. it really doesn't give the battery a chance to recover from the starts, and may be why it died on you.
Oh, and be careful jumping it. I don't know if you did, but you don't want to use a running car as it can ruin your charging system on the bike.
On the fuel pump. the bike can run without it, but if your planning on going on freeway rides where you have constant high fuel demands, the gravity feed of the tank may or may not be able to keep up. If you start experiencing hesitations or misses while highway riding, you may want to look into putting a fuel pump back on. And the lower amount of gas you have in the tank, the more pronounced the issue can become.
Just a suggestion on the battery, I would wait and ride it for a bit before buying a new one. If you were starting the bike and not letting it run long enough to recharge, that may be why it died on you. These batteries are very small and really don't have a whole lot of starts in them. If you start the bike, let it idle for a bit then shut it off, start it again, let it idle, shut it off, and did this several times.. it really doesn't give the battery a chance to recover from the starts, and may be why it died on you.
Oh, and be careful jumping it. I don't know if you did, but you don't want to use a running car as it can ruin your charging system on the bike.
On the fuel pump. the bike can run without it, but if your planning on going on freeway rides where you have constant high fuel demands, the gravity feed of the tank may or may not be able to keep up. If you start experiencing hesitations or misses while highway riding, you may want to look into putting a fuel pump back on. And the lower amount of gas you have in the tank, the more pronounced the issue can become.
Last edited by justasquid; Jul 29, 2010 at 07:15 AM.
Thread Starter
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Joined: Jul 2010
Posts: 30
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From: Phoenix, Az.
Good to know!
And no I made sure to jump with the car off.
These electrical systems are very fragile and with the few volts increase from a running car can cause costly damage on the bikes electrical system!
As for the fuel pump, from some of the research I found out after the bypass, it turns out it runs stable even at highway.
But like you said, as the tank runs to a reserve level, it begins to choke for fuel.
So for the meantime, it can be ran like this until I decided to spring on a new pump.
As for the petcock, my bike currently doesnt have fairings or a manual, and I know when the arrow is pointed at 9 o'clock its in the off position.
Now is reserve at 6 or 12 o'clock?
-Brian
And no I made sure to jump with the car off.
These electrical systems are very fragile and with the few volts increase from a running car can cause costly damage on the bikes electrical system!
As for the fuel pump, from some of the research I found out after the bypass, it turns out it runs stable even at highway.
But like you said, as the tank runs to a reserve level, it begins to choke for fuel.
So for the meantime, it can be ran like this until I decided to spring on a new pump.
As for the petcock, my bike currently doesnt have fairings or a manual, and I know when the arrow is pointed at 9 o'clock its in the off position.
Now is reserve at 6 or 12 o'clock?
-Brian
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