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98 f3 help needed

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98 f3 help needed - 3/24/2006 1:29:05 PM

sup_uni

Posts: 86
Joined: 2/27/2006
Status: offline

ok i really need some help wiht this one please, the bike turns over but wont fire over. the gas does have a leak in it but that isnt my problem right now.

we prayed ether into the carbs but still wont fire over.

the starter is good
the fuel pump is good
the air box is off (so there is enough air)
the spark plugs have plenty of spark
the coils are good
battery is brand new
bike is in neutral

anything any sugestions or idea wil be tired and thanks for the help

*edit* could it be the ecu (black box) anything like that?

< Message edited by sup_uni -- 3/24/2006 1:36:40 PM >

Post #: 1

RE: 98 f3 help needed - 3/24/2006 2:10:32 PM

Downforce137

Posts: 119
Joined: 3/5/2006
Status: offline

most bikes wont start without the airbox on, due to no vacuum to pull gas thru the jets..

(in reply to sup_uni)

Post #: 2

RE: 98 f3 help needed - 3/24/2006 2:57:52 PM

sup_uni

Posts: 86
Joined: 2/27/2006
Status: offline

but like i said we sprayed some ether in the carbs so that should have at least kicked it over once right?

also the leak in the fuel system is at the "t"'s going to the carbs if i put the air box back on should that sove that leak problem cuz now there is a vacume to pull the gas in instead of pushing it out?

(in reply to Downforce137)

Post #: 3

RE: 98 f3 help needed - 3/24/2006 8:55:06 PM

Downforce137

Posts: 119
Joined: 3/5/2006
Status: offline

yah.. it should've prolly fired for a few seconds.. was it running one day, and not the next, or did you buy it this way? Check compression next..

(in reply to sup_uni)

Post #: 4

RE: 98 f3 help needed - 3/25/2006 12:03:56 PM

sup_uni

Posts: 86
Joined: 2/27/2006
Status: offline

no i bought it like that, (i can give it back if i cant get it running) the bike was in a rollover during transport, has been laid down on both sides a few times each, and was taken into a wheelie too far back and came back on itself, been through hell i know.

compression is fine, i havent checked it but when i pull the plugs i can feel it fine.

the guy told me it was running fine about a year ago and then they parked it

(in reply to Downforce137)

Post #: 5

RE: 98 f3 help needed - 3/25/2006 5:01:14 PM

sup_uni

Posts: 86
Joined: 2/27/2006
Status: offline

bump

anyone else have any idea's im having hardcore withdrawls not be able to ride and i need some help please

(in reply to sup_uni)

Post #: 6

RE: 98 f3 help needed - 3/25/2006 5:31:18 PM

transamlt1man

Posts: 796
Joined: 9/4/2005
Status: offline

Well it takes basically 3 things to make an engine run. Air/fuel mixute, spark, and compression. Chances are you don't have a compression problem (at least we hope not). The first thing I would make sure is that EVERY plug is firing. Not just 2 or 3 but all 4 of them. Take them all out and make sure the are not fouled and have good spark. If all your plugs are good and you spray either in the carbs it should fire no problem. Just spray a little. Don't worry about the air box being off. It will not stop it from running. If it kicks on the either then you have a fuel issue. Maybe the carbs will have to be cleaned. If I were you I would start over with the plugs and go from there. Because if everything is true that you said then the bike should kick over. Unless there is a compression problem.

(in reply to sup_uni)

Post #: 7