HELP! 2001 CBR 600 F4I throttle problems? - Honda Motorcycles - FireBlades.org
Honda CBR 600 Discussion of the Honda CBR 600F1, Honda CBR 600F2, Honda CBR 600F3, Honda CBR 600F4, Honda CBR 600F4i, and Honda CBR 600RR Motorcycles.

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post #1 of 27 Old 03-20-2012, 9:02 AM Thread Starter
 
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HELP! 2001 CBR 600 F4I throttle problems?

What is wrong help? Just recently if I wind my throttle it bogs out then slowly speeds up. I run 94 octane through it. It sounds and feels like it isn't getting any gas. Help?
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post #2 of 27 Old 03-20-2012, 9:12 AM
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Re: HELP! 2001 CBR 600 F4I throttle problems?

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Originally Posted by JoeyGuzzo View Post
What is wrong help? Just recently if I wind my throttle it bogs out then slowly speeds up. I run 94 octane through it. It sounds and feels like it isn't getting any gas. Help?

Would I be right if I guessed you are doing this at low rpm?
If so, don't. The engine is not designed to pull throttle from low rpm - get the revs up and keep them there.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #3 of 27 Old 03-20-2012, 11:00 AM Thread Starter
 
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Re: HELP! 2001 CBR 600 F4I throttle problems?

This motorcycle is designed to go fast and get there fast. It never did this before. I'm talking about twisting half throttle then it bogs out then picks back up. I know it shouldn't do that. It does it through the gears. Maybe my injectors? Can I put treatment in my tank? But what else could it be? Aswell as the most likely
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post #4 of 27 Old 03-20-2012, 11:03 AM
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Re: HELP! 2001 CBR 600 F4I throttle problems?

In that case I would be checking the fuel pressure regulator.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #5 of 27 Old 03-20-2012, 11:06 AM
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Re: HELP! 2001 CBR 600 F4I throttle problems?

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Originally Posted by JoeyGuzzo View Post
This motorcycle is designed to go fast and get there fast. It never did this before. I'm talking about twisting half throttle then it bogs out then picks back up. I know it shouldn't do that. It does it through the gears. Maybe my injectors? Can I put treatment in my tank? But what else could it be? Aswell as the most likely

Sure it is, but not a low rpm.
Even at 10,000rpm when cruising, if you crack the throttle open the engine stumbles?

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #6 of 27 Old 03-20-2012, 11:07 AM Thread Starter
 
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Re: HELP! 2001 CBR 600 F4I throttle problems?

You would say this my best bet? Nothing more likely then so? I will do just that. I just don't know.
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post #7 of 27 Old 03-20-2012, 11:11 AM Thread Starter
 
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Re: HELP! 2001 CBR 600 F4I throttle problems?

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Originally Posted by bladeracer View Post
Sure it is, but not a low rpm.
Even at 10,000rpm when cruising, if you crack the throttle open the engine stumbles?
No but it doesn't giddy up fast enough. I don't cruise at 10 grand unless I'm going a little to fast. I shift a 6 grand.

Either way. I should be able to crack my throttle at 2 grand in 1st and I should get going. But if I do that it'll bog out and lose speed before it slowly picks up. Same with second and third. Once I get to a good speed it doesn't bog. But doesn't speed up fast as it should
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post #8 of 27 Old 03-20-2012, 11:14 AM
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Re: HELP! 2001 CBR 600 F4I throttle problems?

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Originally Posted by JoeyGuzzo View Post
No but it doesn't giddy up fast enough. I don't cruise at 10 grand unless I'm going a little to fast. I shift a 6 grand.

Either way. I should be able to crack my throttle at 2 grand in 1st and I should get going. But if I do that it'll bog out and lose speed before it slowly picks up. Same with second and third. Once I get to a good speed it doesn't bog. But doesn't speed up fast as it should


No you should not be able to crack the throttle at 2000rpm and expect the engine to pull hard.
You can wind in the throttle slowly and give it more as the revs build but a handful of throttle at low rpm just floods the engine with fuel it can't burn, fouling the plugs and increasing the risk of detonation.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #9 of 27 Old 03-20-2012, 11:29 AM Thread Starter
 
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Re: HELP! 2001 CBR 600 F4I throttle problems?

I agree but it didn't used t do this. Just started. I can't even go from 0 to 45 in 4 seconds. Its like it isn't getting fuel. If I'm in 3rd and I crack throttle same thing..
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post #10 of 27 Old 03-20-2012, 11:32 AM
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Re: HELP! 2001 CBR 600 F4I throttle problems?

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Originally Posted by JoeyGuzzo View Post
I agree but it didn't used t do this. Just started. I can't even go from 0 to 45 in 4 seconds. Its like it isn't getting fuel. If I'm in 3rd and I crack throttle same thing..

It doesn't matter what gear you're in, it only matters what the rpm is.
You cannot crack the throttle open at 5mph for example and expect it to accelerate, you have to pull the clutch to get the revs up first.
Check the FPR as they do fail and it's a very simple check.

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post #11 of 27 Old 03-20-2012, 11:41 AM Thread Starter
 
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Re: HELP! 2001 CBR 600 F4I throttle problems?

Are the expensive? How do I check it? I understand where y thats the thing.ou are coming from. It just started doing it
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post #12 of 27 Old 03-20-2012, 11:43 AM
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Re: HELP! 2001 CBR 600 F4I throttle problems?

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Originally Posted by JoeyGuzzo View Post
Are the expensive? How do I check it? I understand where y thats the thing.ou are coming from. It just started doing it

Pull the vacuum line off, turn the ignition on to prime the fuel pump, make sure no fuel comes out of the FPR - if it does you need a new one. From memory I think they're around $75.
I thought only bought the bike recently?

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post #13 of 27 Old 05-10-2013, 5:54 PM
 
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Re: HELP! 2001 CBR 600 F4I throttle problems?

Can you tell me how you fix problem with your f4i beacuse i have same problem.
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post #14 of 27 Old 05-15-2013, 3:58 PM
 
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Re: HELP! 2001 CBR 600 F4I throttle problems?

You have the wrong octane in there. Octane rates define the burn temp. Higher octane= more additives to prevent a fast response. The cbr is rated for 91 highest! 94 means you are slowing your ignition firing. Unless you modifed the engine for higher compression, you are pouring crud in the gas. Try 91 and move down to 89 or 87 until the engine knocks. That means you are too low and the gas is preigniting. Have octane boost to get you back to the no knocks. If you want a good ignition with lowest octane, try water wetter to keep the hot spots in the engine to a minimum.
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post #15 of 27 Old 05-15-2013, 7:06 PM
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Re: HELP! 2001 CBR 600 F4I throttle problems?

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Originally Posted by cocoablini View Post
You have the wrong octane in there. Octane rates define the burn temp. Higher octane= more additives to prevent a fast response. The cbr is rated for 91 highest! 94 means you are slowing your ignition firing. Unless you modifed the engine for higher compression, you are pouring crud in the gas. Try 91 and move down to 89 or 87 until the engine knocks. That means you are too low and the gas is preigniting. Have octane boost to get you back to the no knocks. If you want a good ignition with lowest octane, try water wetter to keep the hot spots in the engine to a minimum.

Say what?
Higher octane may not provide any benefit but it's not "slowing your ignition firing" or "pooring crud in the gas".
I've never seen WaterWetter make any measureable difference in engine temperature.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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