Why does my 2009 Yamaha Stratoliner S cut off when stopping after 40+ miles.

SOURCE: yamaha 2001 r1

Hi There,
Got this from my copy of the Yamaha workshop manual for this model

The YZF-R1 features a self-diagnosing system for the following circuits:
1. throttle position sensor
2. EXUP
3. fuel level indicator light
if any of these circuits are defective their respective condition codes will be displayed on the tachometer when the main switch is set to "ON" (irrespective of whether the engine is running or not)

1. throttle position sensor a) Disconnected b) Short-circuit c) Locked 0 - 3,000rpm
2. EXUP a) Improper connection b) Short-circuit c) Servomotor is locked 0 - 7,000rpm
3. Fuel level indicator light a) Improper connection 0 - 8,000rpm

It looks like you have a problem with the EXUP Valve on yours, probably seized or maybe cables not moving freely
Hope this Helps

SOURCE: my name is james, i have a 1982 yamaha xt550 that

The first place to look is the Kick stand safety switch,This will cause the problems you are having,If it is going bad or not contacting completely.(You can bypass to test it,if need be )

Check that and then post back if you still have any problems.

SOURCE: yamaha trx850 bike stopped then restarted no

If they find nothing wrong then the problem is obviously intermittent and can be very hard to find. Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral wire connection.
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The usual source of intermittent loss of spark is the side stand kill switch. It kills the engine so that you don’t start out with the side stand down. Check for a broken wire at the switch or coupler. Get a service manual and check out the electrical section. Some bikes have a diode controller integrated into the turn signal relay. Try moving the kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it. If that doesn’t work, check out the relay.The dealer would / should have load tested the various ignition components. I will assume the ignition system is okay. Check the battery and fuses. Install a new set of stock spark plugs.

SOURCE: Yamaha TW 200 starts but won't run.

If the bike has sat for a long period of time without being run - the gas that is sitting in the carb(s) will shellac.. Then the carb(s) would need to be cleaned and "rebuilt"..

SOURCE: tire pressure for stratoliner

For riding 2 up I recommend 38 front and 42 rear. Some riders have commented on some front wobble corrected by putting the front to 40 psi.