zxr250 doesnt start after changing plugs

[loonggan]

Hey guys, last week i decided to change new plugs. 4X CR9E
Replaced them, took for a test run. Ran great came home turn it off.
2days later tried to start and again and it wouldn't start again.

I've replaced another 4X spark plugs, tested for sparks. all great checked carbies. Still wouldn't start.
All i can hear is the starter motor turning but doesn't seem to want to start. Tried push starting it, tries to start but just dies off quickly.
Any suggestions? was running great before I changed the plugs. =[

[pandyman]

is the gap to big on the plugs , flooding?

[Para045]

Dodgy kill switch? Also check your centrestand switch, maybe there is a problem there? Did you remove the tank to change the plugs? Maybe a kinked fuel line or breather incorrectly fitted

[loonggan]

@pandyman aren't CR9E's pre gapped?

@Para045 I will have a look at the switch during the week. I didn't remove the fuel tank, as zxr250's plug have to remove by removing the radiator from the front. Fuel lines and breathers weren't touched.
Problem is it was running great, after that it just wouldn't start!!

[pandyman]

not sure about the gap, id imagine that they wouldnt be gapped specifically for your bike, although no doubt they'd be close enough to get it going

i know this sounds silly , but you did get the leads back on in the right order ? when i do my cars plugs ,if i dont do 1 at a time its fairly easy to get them wrong

although this could only apply to the second set of plugs , as it worked after the first lot

[Stavtech]

have you checked the battery?

maybe get it charged?

[loonggan]

@pandyman leads are labeled 1-4 so i wouldn't get it wrong.

@stavtech battery is only 1 month old. and after cranking so much, i've recharged it aswell! still wouldn't go!

my birthday wish for this year is for it to go again!

[Frogger]

what condition are the leads in , when i did this on my old zxr250 the leads were almost ready to fall apart and when putting them back on i found they werent as tight as before.

[loonggan]

the condition of the leads seems to be okay... still plugs in and plugs out fairly good.

[Stevezxr]

If you have spark it can only be a fuel problem maybe try starting while the fuel switch is on prime flick it to prime and just crank it over
Take the top off your air box get a can of Startyabastard and try starting while spraying side to side across the carbs if it starts or makes an attempt to you know its a fuel problem if doesn't start its not a fuel problem

[loonggan]

yeah I sprayed some start ya bastard but she still wouldn't go. Thats why I'm stuck! its not the carbs, its not the plugs....

[pandyman]

dodgy fuel? although it should fire with the magic start spray

[Frogger]

do you know the difference between a good spark and a weak spark ? i spent 2 weeks with this problem on mine , was getting spark and all that same as you but turns out it was only weak . the battery had dropped a cell and didnt have the power to turn the startor motor and produce a strong spark.

test your battery and see what volts it drops to when u hit the starter.

[thro]

cue: its the battery