Zx6r 2004. Bike ran great for two months. Went out to dinner last night and came out to my bike not starting. Trailered it home, started when taking off trailer. Went for a 15 minute ride and parked it. Bike would not start again this morning. Would not start all day till this evening. Bike started, took for a short ride and parked bike, now it will not start again. Replaced ignition relay because it was making weird sound , wasn't the problem. 12.5 v on battery, drops to between7-8v when trying to start.

SOURCE: Wont start

FIRST thing to check is spark plug ,make sure it is sparking ,if it is and is wet change the plug .If plug is dry it could be the carb needs cleaning out if it has beesn stood for a while

SOURCE: cbr 125 choke problem

It sounds like the choke line may not have been routed correctly when the new one was installed. Remove the gas tank and check to see that the line is not being stretched anywhere along the way AND that the gas tank when re-installed is not stretching the line. The line may have been kinked when installed. Look at the mechanical movement of the choke at the carb. Does it operate freely? Remove the air filter and look inside the center of the carb, (you may need to use a small mirror for this), does it look like the choke is opening and closing properly when the choke is moved on and off?

SOURCE: wont start

Hi,

Oil from the breather is an indicator of compression bypassing the rings. This causes sump compression.
Cause of the problem is worn rings.
You need to conduct a compression test, if the compression is low then rings are probably the cause of the bike not starting.

Cheers

Jon

SOURCE: bought a 2004 kx65 for my son last night. Bike ran

hi mate it could be to do with the correct mixture off oil/petrol you should buy a mixing bottle on ebay with a ratio of 32/1 and make sure the choke is off when you ride it good luck

SOURCE: Daytona 955i (02) ran rough display went blank management light

When there is no charging system operational, the bike will run wih battery in total loss mode. When it gets to a certain point of discharge, the first indication is indeed as you saw, the intruments go blank. There is little power left at this point and need to get home asap! 

Either the R/R (rectifier/regulator) and/or the stator is bad - both are unfortunately quite common failures on these bikes. 

You can find a diagnosis guide that I personally authored at this site: 
http://www.triumphrat.net/speed-triple-forum/104504-charging-system-diagnostics-rectifier-regulator-upgrade.html

Follow those guidelines and you will be able to determine which or both is failed.
Also is a recommendation for a retrofit/upgrade to a better component if you do need to replace the R/R.