Question about 1998 Honda CBR 600 F(3)W

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1998 Honda CBR 600 F(3)W engine bog

I have a cbr 600 f3 that has poor acceleration in 2nd and all the other gears under heavy acceleration the bike bogs down and the wants to die@

Posted by Anonymous on

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  • Honda Master
  • 43,050 Answers

Hi, Anonymous engine "BOG" is mainly caused by a rich air and lean fuel condition but it can also be caused by a lean air and rich fuel condition this situation rarely occurs and is only caused by the misinformed weekend warrior that owns a toolbox.
The more you open your throttle the more vacuum you are creating in your carburetor venturi and your intake manifold. When you are operating at higher RPM any unmetered air that leaks into your system can become more obvious.
Unmetered air is air that is getting into your system after the fuel has been delivered. If you have unmetered air getting into your system between the butterfly/slide of the carburetor and the cylinder head this will create a lean condition.
All of the rubber components of the fuel system like vacuum hoses and intake manifold that you mount the carburetor to are made of rubber. If none of these components have been changed they are more than likely highly degraded and probably cracked in places to allow unwanted-unmetered-contaminated air into the combustion chamber. Check all of your vacuum lines and vacuum plugs for carburetor synchronization. The vacuum plugs are in the head just after the rubber intake manifolds. The petcock has a vacuum line as well as part of the emission system.
1. Check the intake manifold for fissures.
2. Ensure the bands used to tighten the manifolds down on the intake are secure and have not bound up the manifold.
3. Make sure air box fittings are not warped and fit completely over the carburetor.
Your airbox is metering air and is the first step in a process of consuming air and fuel. The system requires the resistance of the air filter in order to get the proper vacuum to "SUCK" the fuel out of the float bowl and create the proper venturi effect.
Improper mounting and sealing of the airbox will create a small lean effect. This might seem like no big deal but you are inviting dust and debris in your engine that is doing slow damage by not having proper fitment. Fix it so you know it's not contributing to your issue. Pick the low-hanging fruit first.
Do not go and start adjusting anything at this point. It ran fine before. There is something wrong with the assembly or a component. Do not adjust your floats. Get it back to where it was. The moment you start tweaking everything is the moment you lose OEM settings which are a must-have for fine-tuning and maximum performance.
Fine-tuning your carburetor and multi carb syncing come at the very end following the proper procedure established by the Carburetor Gods.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
98 F3 bogging down under load CBR Forum Enthusiast forums for Honda CBR...
96 CBR600 F3 engine bogs out spark
1995 1998 CBR600F3 Repair Manual Download Manuals Technical $15
https://www.partsfish.com/page/oem-parts-for-honda
Honda CBR600RR 2007 Owner Manual

Posted on Nov 03, 2017

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 2336 Answers

SOURCE: runs for 30 minutes then dies

try running with fuel cap open. If it keeps running, breather in fuel cap blocked, strip fuel cap and clean.

Posted on Nov 10, 2008

hotratchet
  • 952 Answers

SOURCE: cbr 600 f3 will not start

wow, 7 years without use! try to check if the fuel pump motor is still working... also check the fuel lines if its clogged.. I hope you get your bike up and running again... feel that adrenaline rush when going 100+mph.. hehehe.. have a good one bro...

Posted on May 26, 2009

co7196
  • 3433 Answers

SOURCE: 1995 cbr 600 f3

yOU MAY HAVE A VACUUM LEAK AT THE MOTOR

Posted on Jun 10, 2009

  • 47 Answers

SOURCE: 96 honda cbr 600 f3

hi would be good idear to also check spark and and timing also if you just got bike give it a good service this includes fuel filter

hope this helps

Posted on Jun 18, 2009

87600hurri
  • 6 Answers

SOURCE: 1987 Honda CBR 600 Hurricane has only 5 gears.

as far as i know there was never a 5 speed hurricane, my 87 is identical to your picture, mine has 6 speeds, mine also does more than 135, but mines got a k&n, Vance and hines pipes, and stage 3 jet kit, but never heard of one with 5 gears,

Posted on Sep 30, 2009

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1996 cbr 600 f3 second gear jolts the bike!


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