My 95 F3 is running like S*** help please!!
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My 95 F3 is running like S*** help please!! - 5/11/2006 3:05:48 PM
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GreaseMonkey83
Posts: 86
Joined: 5/11/2006
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The bike runs good first gear, i shift to second, it shifts fine and runs good in second gear untill about 5000rpms then it starts missing and stuttering and losing power. I cannot get it to go over 5000rpms in second. As long as i keep the throttle cracked at 5000rpms, i can drive down the road in second gear but as soon as i apply alittle more throttle it loses power and spits and sputters. when i shift to 3,4,5 it just loses power and dies slowly. What is wrong with this thing? heres what ive done so far- New battery, plugs, fuel filter and fuel pump. none of that helped so i changed it over to gravity feed, and that didnt help either. so i cleaned the carbs, didnt help, so i bought some used carbs off of a 98 cbr f3, it ran alittle bit better, maybe let me get to 6500rpms in second, but still did not fix the problem. so i cleaned the tank, new fuel filter, still nothing. I used my buddys bike (98 cbr F3 that runs very good) as a doner and i started pulling parts of and enterchanging them with mine. I changed out the coils, wires, rectifier, and computer.. still nothing.
What is wrong with this thing? Im just about to the point where the only thing left i know to do is ghost ride it off the dock and out into the lake, maybe it will make a better jet ski then a motorcycle.
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 5:09:17 PM
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GreaseMonkey83
Posts: 86
Joined: 5/11/2006
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Nope, never changed the speedo or cluster.
I did however notice a small exhaust leak, sounds like its coming from the headgasket, forgot to mention that in my first post.
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 5:49:57 PM
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TORNADO_EARTH
Posts: 24
Joined: 5/7/2006
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HI! my bike has the SAME problem!
but diffrent is that i didn't try do nothing with it yet)))
i think it is problem only in carburatour..
for how long your bike stay in the garage?
did you add some chemicals to the fuel before put to the storage?
the problem might be in the needles.. you know i wanna try to buy a NEW DINO JET kit
and chenge all needles and other small parts that go within kit..
do no why but i belive that it gonna fix the problem..
also gonna do carb sincronization did you ever done it?
any way man! keep in touch!
P.S. my bike after assident and stay in the parking lot for 3 months and also 4 month in my garage before i start it....
P.P.S. did some body try to use fuel condencers??? or stuff like injector cleaner??? just something that need to add in fuel..?
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 5:53:04 PM
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Melch
Posts: 58
Joined: 4/16/2006
Status: offline
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With the bike sitting still and it in nuetral,will it rev right??If so sounds like your air selonoid valve.
_____________________________
Wera V7MW National Champ. 04,05
Beat-up F2/3 637 Superbike
Old fart having a large time
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 5:58:47 PM
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GreaseMonkey83
Posts: 86
Joined: 5/11/2006
Status: offline
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my bike has been sitting for the last 1 1/2 years while i was in iraq, but it ran like this before i left.
When it is in nuetral it revs fine all the way to the rev limiter.
how do i check the air selonoid valve to see if its working properly?
< Message edited by GreaseMonkey83 -- 5/11/2006 6:03:47 PM >
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 6:07:29 PM
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TORNADO_EARTH
Posts: 24
Joined: 5/7/2006
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mine too.. and everithing seems to be ok on the 1st.speed..
but hell begins on the 2nd...
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 6:10:21 PM
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Melch
Posts: 58
Joined: 4/16/2006
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I dont know the proper way to ck.it,I loaned my manual to someone,but it isnt working.It should open at 12mph and its not.That is what is causing it to fall on its face.On the race bikes we always bypass this crap.It is not hard to do.I will try to take some pics for you and post them.Then just hook all the hoses up exactly as they are in the pics.
_____________________________
Wera V7MW National Champ. 04,05
Beat-up F2/3 637 Superbike
Old fart having a large time
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 6:47:14 PM
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GreaseMonkey83
Posts: 86
Joined: 5/11/2006
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that would be very much appreciated.
Oh, and one more thing, i downloaded a user manual and my bike has all the emissions crap on it. I live in Ohio, and i bought it from michigan, guess the guy i bought it off of must have gotten it from someone in Cali. Anyway, is there any way i can take all that crap off and can it? Im guessing if i do that i will have to buy a computer from a non-emissions controlled bike right? Thanks angain for help.
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 9:40:16 PM
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Melch
Posts: 58
Joined: 4/16/2006
Status: offline
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quote:
ORIGINAL: GreaseMonkey83
that would be very much appreciated.
Oh, and one more thing, i downloaded a user manual and my bike has all the emissions crap on it. I live in Ohio, and i bought it from michigan, guess the guy i bought it off of must have gotten it from someone in Cali. Anyway, is there any way i can take all that crap off and can it? Im guessing if i do that i will have to buy a computer from a non-emissions controlled bike right? Thanks angain for help.
Absolutly you can take it off.As I said I dont have my manual and would have to look at the wiring diagram.Mostly if I remember right its just a charcoal cannister and various plumbing.Also I dont believe you would have to replace the brain box either.
In the meantime try this and Im not certain this will work because normally we take all this stuff off as I said earlier.But look under the carbs and you should see a brass in line valve.It should be the only thing under there thats looks brass and is not much bigger than the lines it ties together.Take that valve out and just hook the two hoses together with a nipple or piece of tubing or whatever you have that is close in diameter to the hose.That may cause a little difference as you let the clutch out from a dead stop,but I doubt it.It may solve your problem completely.Let me know.
We'll get that thing running right one way or another.
_____________________________
Wera V7MW National Champ. 04,05
Beat-up F2/3 637 Superbike
Old fart having a large time
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RE: My 95 F3 is running like S*** help please!! - 5/11/2006 10:36:45 PM
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GreaseMonkey83
Posts: 86
Joined: 5/11/2006
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Ill eliminate the valve that youre talking about.
BUT i have some bad news. while i was going through the various hoses and pulling the carbs, i found another problem that needs to be adressed asap. My brother wanted to ride the bike last summer while i was over seas so i told him if he took to a mechanic and got it fixed, id let him ride it. The mechanic he took it to was a half-assing billy-rigging goat-roper. Im missing half my fairing bolts that i bought new for it before i left, my fuel lines were cut and replaced with dry-rotted lines, my brand new fuel pump is gone, and the engine leaked oil bad from the cam cover gasket, which is the problem i found that needs to be adressed asap. the far right rear cam cover bolt was snaped off inside the head and thats why it was leaking oil bad. It didnt do that before i left, so im guessing the mechanic had something to do with it.
I couldnt get to the rung off bolt with a drill because it was in such a tight spot so i had to remove the whole engine. So thats where im at now. should have that fixed either tonight or tomarrow and have the engine back in around mid-day tomarrow.
Anyway, back to my original problem. I have a diagram from a repair manual for routing of the fuel and vacum hoses for both the 49 states/canada versions and my cali version. Is this the diagram that you are talking about? If so, do i just hook up my hoses according to the 49 states/canada version and be good to go? Also, my carbs are from a 49 states version 98 CBR.
Thanks alot to everyone for your help so far.
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RE: My 95 F3 is running like S*** help please!! - 5/12/2006 5:08:45 AM
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apj
Posts: 34
Joined: 1/1/2006
From: Brisbane, Australia
Status: offline
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Yep sounds like your bike getting choked for air to me. You didnt mention if you checked the air filter and all the air tubes running into your carbs. I'd be looking at that.
On my track bike the air solenoid valve has been removed. If you elect to do this just be aware that if you drop the bike at all then chances are you will clog the air tubes with fuel (have done this 3 times now) which means you have to pull the tubes off and blow them out before your bike will run smoothly again.
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RE: My 95 F3 is running like S*** help please!! - 5/12/2006 7:53:38 PM
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rafo!
Posts: 42
Joined: 4/8/2006
From: altamonte springs, fl
Status: offline
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can u only delete it on race bikes only whats the difference ..planning to do the same
quote:
ORIGINAL: Melch
I dont know the proper way to ck.it,I loaned my manual to someone,but it isnt working.It should open at 12mph and its not.That is what is causing it to fall on its face.On the race bikes we always bypass this crap.It is not hard to do.I will try to take some pics for you and post them.Then just hook all the hoses up exactly as they are in the pics.
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RE: My 95 F3 is running like S*** help please!! - 5/12/2006 10:05:30 PM
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GreaseMonkey83
Posts: 86
Joined: 5/11/2006
Status: offline
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got the motor back in.
the bike has a K&N filter, i cleaned and oiled it and blew all the hoses out back when i was swapping parts off my buddy's cbr. it still ran like crap, so im almost sure ints not the filter or any of the hoses.
Is the air solenoid the valve that is in bolted to the front of the engine, behind the header? If so, can i just block all the hoses off that come out of it and run the rest of the hoses according to the diagram i have of the 95-96 year 49 states/canada model F3s?
< Message edited by GreaseMonkey83 -- 5/12/2006 10:09:42 PM >
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RE: My 95 F3 is running like S*** help please!! - 5/12/2006 11:53:58 PM
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Melch
Posts: 58
Joined: 4/16/2006
Status: offline
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quote:
ORIGINAL: GreaseMonkey83
got the motor back in.
the bike has a K&N filter, i cleaned and oiled it and blew all the hoses out back when i was swapping parts off my buddy's cbr. it still ran like crap, so im almost sure ints not the filter or any of the hoses.
Is the air solenoid the valve that is in bolted to the front of the engine, behind the header? If so, can i just block all the hoses off that come out of it and run the rest of the hoses according to the diagram i have of the 95-96 year 49 states/canada model F3s?
Allen unfortunatly it sounds like someone has butchered your bike.Yes you should be able to do the hose diagram from the 49 state model and no the solenoid is behind the carbs,if it is still there,on the fuel pump side.On that note is there a fuel pump on it and is it working?This also could easily be you problem as well.Are the float bowl heater hoses still there,or have they been bypassed.
Try this because it will be quick and help us rule out a few things.On the back of the carbs you will see aT where the fuel hooks up.Take a short pc. of fuel hose hook it to your petcock and turn your petcock toward the carbs a little bit as you will only be gravity feeding the carbs and hook the other to the T.The shorter the better.Just leave your seat and tank on.Your only trying to do a test run where you can put a load on it.Ride it and see if it stops falling and revs.If it does not,stop and unlock your gas cap and let it just lay shut but not pushed all the way down and locked.If it still does it we have ruled out several things and we will go from there.I know this is frustrating but we will eventually find the problem.Let me know what it does.
_____________________________
Wera V7MW National Champ. 04,05
Beat-up F2/3 637 Superbike
Old fart having a large time
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