My 1993 cbr 600 wasnt starting very good ,change the plugs .since then wont start put old plugs back,still wont start renewed ht leads and caps .still nothing .checked for spark good spark from each plug .started but like seems not running on all clyinders. checked firing order ok . put second hand cdi on and pulse genorator then it would fire then huge bang or back fire.. not sure if i got b/w and blue/ white on coils right way. took carbs off and clean bowls out ,and blew jets out never altered any settngs just cleaned but they where clean. spent so much and money on this can you please give me any advice ps the kill switch in run position , perol flows from tank and plugs are wet. would check compresson but havent got a tester. many thanks
Hi, each lead has the specific number on it. if you do this correctly then they genrally give you an idea to where the sit in the coils( the way they bend :-) ) also i believe the coils are better off been attached to the frame once you are sure leads are in corect order and possitioned correctly in the coils.i just presumed the coils neaded earthing. make sure battery is pleny charged as a bad battery can just hinder. it is also very easy to flood the bike so just check the plugs again. if they are unusually wet then dry them off and try again . otherwise maybe try cleaning all electics.
hope this somehow helped
gavin barraclough
Try the wires from the coils as when you constantley rub them back and forwards when changing plugs for instance,mine became worn and i cud get the bike to run on 3 cylinders then 4 simply by bending one of the 4 coil wires
ian
The carburetors need to be completely disassembled and soaked in a carb specific solvent. Just blowing out the carbs will not work. If there is a local shop you deal with , ask them how much they would charge you to soak your carbs for you. Or you can go to napa or any other large car parts house and get a 1 gallon can of carb cleaner...which is very different than the stuff that comes in an aerosol can. It will run you about 50 bucks for the gallon of cleaner and it comes with a basket in it. If you tear down the carbs you will be able to soak each carb body...But only one at a time. The carbs have tiny orifices that become plugged or restricted and soaking them is the only fix. Make sure all the rubber is out. O-rings...And when they go back together they will have to be synchronized.
Motoboy1
motoboyzmotosports.com
Sounds like you have got the plug leads on in the wrong order. There is possibly some numbers on the coils, that corralate to the cylinders.
The firing order is usually 1-3-4-2.
TL
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was the bike sitting for a few months? if so, did it run ok prior to the break?
anything in the exhaust pipe or in the air cleaner (i have seen mice make a nest in there) to cause it not to breathe?
and its happened before where a friend poured diesel into his tank when he thought he was buying gasoline.
tried jumping cleared cleaned stsrter switch
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