Engine runs and does not happen every time I start. When I turn key fuel pump kicks on and stops before starting (normally), but fuel pump goes on and off before starting when FI problem happens. Air filter is new and bike has 11,000+. 2008 C50T
Kevin, Check the attached links,Manuals and guides, Good luck with your Bike
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What to do When Your Motorcycle Won Start
How to Diagnose Motorcycle Electrical Problems Dennis Kirk Inc
ATV Motorcycle Repair Manuals Repair Manuals Online
SOURCE: 1998 suzuki gsxr750 fuel pump inop after replacing filter
You cannot bleed the fuel injection system.Test the pump alone (not on the bike) for sufficient fuel supply.Also check the fuel pump relay.
If all that is ok next time you try to crank the engine (only with kill switch on, the fuel pump primes up) with lifted tank and opened air box, spray a bit of carb cleaner spray towards the throttle bodies.It will help.
SOURCE: Bike cutting off and FI light and check engine came on and off
that is the code for when a bike is laid down .... auto shut off sensor ...... as soon as u turn key off and back on it should be good to go again. ....
SOURCE: bike wont start, fuel pump does not start when key is turned on
there is also a fuse block behind your left side case behind the tool kit box. remove the box and the is a fuse block with a 10 amp fuse for the fuel as well
SOURCE: f1 displayed
The FI light is letting you know there is a problem with the Fuel Injection system on the bike. You will most likely need to take it to the dealer and have them diagnose it with their computer. You can check your fuses and make sure they are intact, but most likely dealership problem.
SOURCE: I have an 04 RMZ 250 I just re-shimmed the valves
sounds like maybe valves were shimmed too tight,check service manual for clearances...better a little loose than too tight,can cause alot of damage to cam & head,be careful!!
READING CODES
Modes will not switch while the engine is running. The ECM automatically switches to MODE I when the ignition is switchedOFF.
1984-90 Vehicles With Dual LED System
The self-diagnostic system has 5 modes. To switch modes, switch the ignition ON and use a screwdriver to turn the mode select switch through the access port on the ECM. The inspection lights will begin to flash. When the desired mode has been entered, turn the screwdriver fully counterclockwise. The red LED and green LED perform different functions in different modes.
Mode I-
This is the normal vehicle operating mode. The green LED will indicate loop status. If the green LED is not blinking when the engine is running, the vehicle is in open loop, or the HO 2 S, O 2 S, or sensor circuit has a malfunction. If the green LED is blinking, the vehicle is in closed loop. If a malfunction takes place, the red LED and the MIL will glow, indicating a malfunction has occurred.
Mode II-
Both the red LED and green LED are used to monitor mixture ratio feedback control. The green LED will function as described in MODE I. If vehicle is in open loop, the red LED and green LED will remain on or off. In order for results to be valid, vehicle must be in closed loop. In closed loop, the red LED remains off if the system is running rich, comes on if the system is running lean, and blinks at the same time with the green LED if system is within 5% of the exact air/fuel ratio.
Mode III
-When this mode is accessed, the codes stored in the ECM's memory will be flashed by the green LED and red LED on the side of the ECM. The red LED will light first. This is the first digit of the trouble code; the green LED will flash next, showing the second digit of the code. For example: 2 flashes of the red LED followed by 1 flash of the green LED corresponds to Code 21.
Mode IV-
This mode is used for checking the throttle plate (TP) switch, starter, and vehicle speed switch status. When the TP switch or starter switch is activated, the red LED will briefly flash as the status changes. For VSS status, the green LED will remain off when vehicle speed is less than 12 mph (19 km/h) and come on when vehicle speed is greater than 12 mph (19 km/h).
Mode V-
This mode represents a real-time diagnostic test of the crank angle sensor, ignition signal and the mass airflow signal. The malfunction code will be displayed only when the malfunction occurs and will not be stored in memory. The output code will appear as a single or short string of pulses. Count the number of pulses for the malfunction code.
1 pulse-CMP sensor signal lost or noise in signal
2 pulses-MAF Sensor signal abnormal
3 pulses-Fuel pump circuit shorted or open
4 pulses-Ignition signal lost
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