I have 2009 buell 1125r with 10000 miles I just started having a problem while I ride the bike for little while my tackomter starts to work and not work and my check engine light comes on also my battery light to the bike starts to run bad and this keeps on going for a while then I come to a stop on the bike it goes away then when I start driving again it will happen again it's only when I ride for a while can this be the stator or ecu ?

SOURCE: 2001 yamaha R6 will die out on me while riding

Hi there!

dont give up on it yet. the CDI costs much! This sounds like a wiring problem. I've had the same problem before but i checked and traced the wiring and found out that the positive lead wire is making contact with the chassis.. due to vibration and just, it must have eaten the insulator. Check on this part. Also, make sure that your carb jets and spark plugs are clean.

-hope this gives you an idea.
-levibit

SOURCE: Motorbike : Bike turns over but won't start?

Take it to the dealer under warranty.

SOURCE: replaced stator and battery, bike still givin trouble

the regulater is located between tha battery and the gas tank .There are (3) white and(2)red wires .See if they are showing signs of damage from heat more than likley they are because when you "boost" or jump these bikes you burn a very weak diode witch regulates the charging time from the stator i would check ebay for the best price on a new regulater rectifier you may need one.I had the same problem with my 2000 model r6.good luck bro!

SOURCE: I think I have a bad stator on my 2002Harley Dyna

too many variables !
Firstly check battery under load ! any battery place or auto electrician can so it usually free!
do this before replacing any thing else!
make sure all connections are clean & tight
if battery is ok get them to check the charge rate on bike! its a simple test or you can do it with a volt meter they are only cheap to buy!

SOURCE: Engine Light Going On/Off

yes it could cause this
fully charge battery and try again