Help me fix my CBR600F3 before I torch it....
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Help me fix my CBR600F3 before I torch it.... - 1/18/2005 2:15:11 PM
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NeonspeedRT
Posts: 1468
Joined: 9/2/2004
From: Jax, FL
Status: offline
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Ok,
I'm getting so frustrated with this bike. I really could use some help here. To give you the history of the bike. It's a 98 CBR600F3. It has around 16k miles on it. The bike used to belong to a friend of mine. It was working fine, then one day the fuel pump went out. He never got around to replacing the pump due to him being in the navy and out to sea alot. So by the time I bought the bike, it had sat for about 6 months. I picked up a fuel pump off a F4 from our local junkyard. I replaced the fuel pump and the bike would try to start, but wouldn't. So I figured from sitting for so long then trying to be started, the plugs were fouled. They were. I bought new plugs and put them in. The bike finally started. It was running, but it was't running too healthy. The next day we went to start the bike and it was dead again. I pulled out the plugs and they were kind of fouled, but not too bad. I cleaned them off and reinstalled them. Tried to start it again and still nothign. Pulled the plugs and cleaned them again. Still nothing. When I try and start the bike, it will just turn over and turn over, but not start. When I quit trying to start it, I get a big backfire. Fuel pump is working, the fuel tank is full and the battery has a full charge. Any ideas?
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RE: Help me fix my CBR600F3 before I torch it.... - 1/18/2005 8:38:46 PM
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chainstretcher
Posts: 4492
Joined: 11/5/2004
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Didn't you already clean the carbs? Sounds like you're getting too much gas with all the fouling and backfiring. Is the F4 pump putting out too much gas? No starting with backfires can also be a timing issue. Coulda jumped timing but I'm more convinced that you got carb problems.
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It's better to burn out ...
Than high side!
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RE: Help me fix my CBR600F3 before I torch it.... - 1/19/2005 12:38:57 AM
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CivicRacerX7
Posts: 183
Joined: 1/3/2005
From: Monroe, N.C.
Status: offline
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sounds like u aint gettin no spark
ignition module or anything in there??
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94 CBR 900 RR
Slammed,Stretched,Chromed
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RE: Help me fix my CBR600F3 before I torch it.... - 1/19/2005 8:16:46 AM
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chainstretcher
Posts: 4492
Joined: 11/5/2004
Status: offline
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Backfire = spark. But if the spark hits too late then you can get backfire -- too early and you diesel like a mofo. It's easy enough to see if you're gettin fire. Just take a plug out and reconnect it then turn over while holding plug close to the frame (no where noticeable) and you'll see fire jumpin off the plug to the frame. Timing is easy to check also. Valve cover and timing cover off and check your marks against the service manual.
Too much or not enough gas is the hardest thing to check without butt loads of expensive equipment. And I'm taking a big leap of faith that you have already cleaned the carbs and put good gas in it (believe you said that in another thread).
Good luck.
_____________________________
It's better to burn out ...
Than high side!
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RE: Help me fix my CBR600F3 before I torch it.... - 1/19/2005 10:36:46 AM
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NeonspeedRT
Posts: 1468
Joined: 9/2/2004
From: Jax, FL
Status: offline
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The tank is full of new gas. However the carbs haven't been cleaned or sync'd in who knows how long. After thinking about it and talking to a few people, it seems thats what I need to do first. From sitting if there was gas in the bowls, it probably gummed up and is causing problems. I'm just dreading doing it. I have heard from a few people that the carbs on the F3 are a pain in the ass to do.
_____________________________
MSF Rider Coach
www.anmsafetycourse.com
"Riding a motorcycle is like playing chess. Anyone can learn the moves, but it takes a lifetime to master the game."
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RE: Help me fix my CBR600F3 before I torch it.... - 1/19/2005 1:06:54 PM
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RiPTOR
Posts: 433
Joined: 1/3/2005
Status: offline
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Yeah it's not like the good old days. I rebuilt the carbs on my '75 CB 550 because it was having the same problems after I assembled the whole bike (it was in boxes). I would spray the piss out of it with ignition fluid and it would just turn over and then fart. Havent really looked at the carbs on an F3, and I imagine it's a pain. The 550 was easy.
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'04 CBR 600RR
- Front Flush Mount LED Turn Signals
- Rear Fender Eliminator Kit
- Jardine RT-One S/O Exhaust
- Sportech Black Chrome Windscreen
- Black Shogun Frame Sliders
- Vortex Front Sprocket -1
- PowerCommander PCIII-USB
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