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Hi Thomas put the bike in a high gear and turn the back wheel to make sure the motor is turning over. If it is try booster cables. If that don't work follow the plus cable to the starter solonide and cross the two heavy cables with a screwdriver if the starter is still not working you will need a starter. Regards Jim...
Most certainly the starter motor. Either brushes or bushes. Suggest you remove the starter and have it overhauled. The fact that you can jump start it with no problem show it is only in the starting up, hence the starter motor.
What is wrong????????? That would be a guess on anyones part here ! Testing the electrical circuits involved would be the proper way to diagnose this no start problem ! Using a volt meter an wiring diagram to check voltage at different point's in the starter circuit . voltage drop testing ! Plus knowing how the starter system works !
Starter Circuit Operation
Voltage is applied at all times to the ignition switch from the IGN A fuse through CKT 42 (RED). When the ignition switch is turned to the START position, voltage is applied to the CRANK fuse through CKT 5 (YEL). From the CRANK fuse , voltage is either applied to the clutch pedal position switch (M/T) or the park/neutral position switch (A/T) through CKT 806 (PPL). When either the clutch is disengaged (M/T) or the transmission is in park or neutral (A/T), voltage is applied to the coil of the starter relay through CKT 1035 (PPL/WHT). Since the starter relay is permanently grounded at ground G102 through CKT 150 (BLK), the starter relay energizes.
Voltage is applied at all times to the starter relay contacts from IGN A fuse through CKT 42 (RED). When the starter relay energizes, the starter relay contacts close, and voltage is applied to the starter motor solenoid. Since the starter motor solenoid is permanently case grounded, the starter motor solenoid will energize two coils. The pull-in winding coil energizes in order to pull the starter motor solenoid contacts closed. When the contacts close, a plunger on the contacts causes the pull-in winding coil circuit to open. The hold-in winding coil then holds the starter motor solenoid contacts closed. Voltage is then applied to the starter motor from the battery through CKT 1 (RED) and the closed contacts of the starter motor solenoid. Since the starter motor is also permanently case grounded, the starter motor will run until the ignition switch is moved out of the START position. When this happens, a spring in the starter motor solenoid moves the starter motor solenoid contacts and the plunger back to the rest position.
Same problem here ... 2008 C90T ... dealer no help ... in 3rd or 4th, ignition off, force it to roll backwards until you hear the piston shift ... should start then. Told it's the rear piston stopping at or near top dead center, but also told adjust the decompression will "solve" the issue; anyway, a rolling forward-start in 4th will work, too, otherwise try rolling the bike backwards until you hear, and you will know when the piston moves and then it will start.
Sounds like the starter solenoid went bad. Turn the key on, Make sure it in N. Take a screwdriver and jump the terminals on the solenoid and see if it turns the starter over and starts the bike. If it does then the solenoid needs replaced.
Hi i have a problem with my bike it is an 2001 aprilia rs 125cc. When i press the ignition button i hear a clicking noise coming from what i think is the starter relay? ( located at the front of my bike, behind the radiator ) and the starter motor wont spin or even try to crank the engine. i have also tried 2 bump / jump start the bike but still no start :( i think the battery is fine though as the lights work when ignition is on. can any1 help me with this problem? any suggestions and help appreciated thanks :)
Red to red, then black to black. Negative is always off first and on last! If it doesnt turn over even by jumping, the clicking is your starter solenoid = starter motor possibly defective. One way of trying to start it, is to tap the starter motor while trying to turn the engine on. Not 100% garanteed but 7/10 times worked for me rescuing people!