Question about 2003 Honda CBR 954 RR Fireblade

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2003 cbr 954 Won't start

It seems to be getting everthing it needs to run but just wont start it has 125 psi compression in every cylinder

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  • j_harris316 Mar 24, 2009

    i have a 2002 954 WILL NOT START turn the key ON, run switch ON, and fuel pump does not turn on. will turn over but no fire please help.

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Cdi box

Posted on Jan 22, 2009

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1 Answer

Gas coming out pipe


First off, the bike you listed (2003 Honda CBR 954 RR Fireblade) has a throttle body injection system, so you have no carb, hence no float.

Dec 22, 2013 | 2003 Honda CBR 954 RR Fireblade

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What is the Compression supposed to be for a 1987 Toyota Pick up 22R with carb, 4 cyl.???


A new engine would be about 180 psi for each cylinder. As the miles add up and wear occurs, compression will get lower. The important thing is that compression is even and balanced-lowest compression reading should be within 75% of the highest cylinder's compression. Some Toyota engines had a minimum allowable compression of about 135 psi, but if compression is balanced, you could have average compression as low as 125 psi and engine would still run good, some loss of power but still acceptable, and oil consumption would not be that bad.
If cylinder compression is below 120 psi as an average, you should be looking into a rebuild event-rings and valves need attention. If any cylinder is below 100 psi, it may not even fire, certainly will produce no power, and could be a head gasket failure, very worn rings, or valve problems.
Remember the important thing is to find compression readings that are very close to each other. I have an '87 Sentra with 75,000 miles(true!)-lowest comp. is 160, highest is 165 psi-runs great, good power. Also a '79 Datsun pickup (with god only knows how many miles-about 200,000 maybe). Compression is about 125-135 psi, fairly well balanced-noticeable loss of power, very little oil burning, still runs fair to good-dependable, at least.
That should give you an idea of what to look for. Good luck.

Aug 29, 2013 | 1987 Toyota Pickup

1 Answer

Red light comes on when i turn the power on my 2003 cbr 954 then when i start the bike it goes off is this ok?


Are you talking about the oil light? If yes, of course it is ok. IT is on because there is no oil pressure. There is no oil pressure because the oil pump is not running, nor is the alternator, BTW. Might I suggest to you you get to know about your motorcycle before you put on many more miles. Find and read the owners manual. Any thing you dont understand, find out. Your life depends on it.

Thank you for your interest in FixYa.com

Mar 01, 2013 | 2003 Honda CBR 954 RR Fireblade

2 Answers

I have a 99 sienna and the cylinders have low pressure what can i do?


If cylinder compression is too low, the car may not even start because of it. Have a shop do a compression test or a leak-down test to check the internal health of your engine. A good engine should have pressures of 150-200 psi in all cylinders and be close to each other. A worn or high mileage engine may have pressure as low as, say 125 psi, but if still balanced (close readings), would still run decent. Compression below that, especially below 100 psi, is serious trouble. ignition spark refuses to ignite the air/fuel mixture and you get a misfire-a non-working cylinder. Low compression can be caused by worn piiston rings or poor valve sealing. Low compression in 1 or 2 cylinders can be a valve problem, burned valves or valves not seating properly.
A leak-down test will check each cylinder and if there is a problem, the test will find the cause of the problem.

Dec 11, 2012 | 1999 Toyota Sienna

1 Answer

1995 cbr 600 seems to be running on three cylinders sounds like a tractor when idels back fired twice on 5k ride i no what cylinder it is seems to have plenty of spark hold it on 3500rpm rev counter...


A simple test to identify the dead cylinder is to remove the plug wires individually while it's running. You will need to remove the tank and secure it in a position so it will still deliver fuel and allow access to the plugs. This may require an additional section of fuel line. As it's running, pull the cap off the plug of #1 cylinder-if it run's worse, that cylinder is firing. Reinstall the cap and move down the line until you find the cylinder that makes no difference if the plug wire is on or off. At that point, run a compression test on that cylinder. Minimum compression on most 600 rockets is around 150 psi.
The backfiring sounds like a lean miss caused by an intake valve that is too tight-meaning the valve won't come fully to rest in it's seat and is allowing compression to escape back into the intake. Adjusting the valves requires machined shims. It's kind of a big job but can be accomplished with the factory repair manual, a micrometer and feeler gauges as the only special tools required.Good luck!

Jun 08, 2011 | Honda CBR 600 F Hurricane Motorcycles

1 Answer

Should my 03 honda cbr 954 stay running after I disconnect the battery? I went out of town for 2 weeks and came home to a dead battery. I jumped the bike w/my car and it started, but as soon as I...


The altenator combined with regulator should keep the engine running without a battery. It may run a bit lumpy but it should run.
You have either a regulator or an alternator fault.

Jan 11, 2011 | 2003 Honda CBR 954 RR Fireblade

2 Answers

Hi my 954 runs fine but wont start sometimes after u turn it off and back on headlight does not come on and fuel pump will not run when key is turned on after it sits for hrs it starts fine again ...


Sorry Chris, the chat froze on me. Could be kill switch, sidestand switch, or any electrical fault. You're going to have to get in there and check things out. It sounds like this is one the bike shop will have to get involved with.

Jun 22, 2009 | 2003 Honda CBR 954 RR Fireblade

1 Answer

Bike wont start


check that it is fully charged as some new batt arnt charged failing that check the starter fuse next to the battery should be a 30amp fuse

Feb 21, 2009 | 2003 Honda CBR 954 RR Fireblade

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2003 honda cbr 954rr wont stay running unless starter is held in hey guys, im new to this, my bikes a 2003 honda cbr 954rr. but what recently happened was, i drove all last night, going from place to place, turning it on and off, and finally when i was about to leave my girlfriends house, i left and went down the street, turned it off and tried to sstart it again a few minutes later. wouldnt start. so i kept trying and trying and finally got it going, but as soon as i let go of the starter, it died. so i tried it again. same thing, died on me. the only way it stays running is if i keep the starter button down. tried turning it off and then back on and the lights werent working this time, not the turn signals nothing, not even on the speedometer. so i tried to start it, held in the starter and rev'd it up trying to get some juice to the battery. still nothing. died again. and when i hold in the starter and try and turn my signals on or my brights it just dies. i took the battery out today and went to go get it checked. they said its a good battery just needed to be charged. so i charged it and put it back on and still the same thing. IDK WHAT TO DO!! i need help! if you would like to help me quicker. please someone just text or call me! its my only vehicle and i need to figure something out now! and the local suzuki dealer is backed up for 2 weeks. its a small town and thats all we got! haha. 9406132983 is my number. someone just call me! maybe we can diagnose the problem.

Aug 23, 2012 | 2003 Honda CBR 954 RR Fireblade

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