Not starting

[lovememyxt]

HELP!! Been messing around with some ECU flashing(Flashtune) with a number of complications. After getting a replacement harness(the original could very well have been a casualty of my less than delicate wiring) the uploading apparently eventually succeeded. However, the bike will not start. The kill switch and neutral setting are not a problem. All electrical components appear to be working. The fuel injection primer high pitched sound is audible. Pressing the starter button does NOTHING. I am hoping this might(for whatever reason) be a fuse issue. Is it the 50A fuse that would be the one? Frustrated.....

 

[Don in Lodi]

Have you tried the 'clear flood' scenario yet? Wide open throttle, WOT, I mean to the stop open, and crank away. You may need a booster on the battery. Keep cranking, don't start and stop. If you hear it try to catch a couple times close the throttle while still cranking. You could be 30 seconds to a minute in by this point. The battery unassisted my not be able to reach much past a minute. If after closing the throttle it still doesn't fire, go WOT again. If after topping off the battery and making a second attempt and she doesn't fire you are SOL for the internet. Somebody is going to need hands on and some diagnostic equipment. Swapping your ecu into another bike and seeing if it works in that bike is probably the best/only way to see if you fried your ecu.

 

[2daMax]

Well maybe worth a try.....switch to other gears and go back to Neutral and try that starter.

 

[lovememyxt]

Don, there is zero cranking going on. I think this is a complete disconnect somewhere between the battery and the starter. Might just have to follow the electrical path, something I am not looking forward to. I am not exactly a genius when it comes to wiring, am a few thousand miles away from home and my tools, and have a bit of a hard time getting some clear schematics of what to deal with here. 2daMax, I have played around with that, and will try again. Perhaps it's a solenoid type issue......

 

[trainman]

the good book says check fuses (main and ignition) and battery first, have you tried starting with the clutch pulled and the kick stand up, just to rule those switches out of the circuit?

there is a starting circuit cut off relay mounted with all the other relays behind the right hand cowls, if this relay isn't in than it wont crank, if there is a plug on the relay you may be able to short the loom wires that go to the relay contacts together and see what happens,
to find it you should hear it clicking if you shift in and out of neutral or pull clutch with stand up (bike in gear), I am assuming its not silent in operation

good luck ::008::

 

[lovememyxt]

Checked the main and ignition fuses,...they are good. Will have to get my hands on a volt meter to continue the trouble shooting. Tried all the usual clutch, neutral, kill switch, side stand options....no difference. I'll have to locate that starting circuit cut off relay.....so far I have not heard any clicking. Somehow I am suspecting that my initially botched flashing attempts have messed up the ECU.

 

[Derekj]

Is the battery charged ? Also check the ground.

 

[trainman]

Checked the main and ignition fuses,...they are good. Will have to get my hands on a volt meter to continue the trouble shooting. Tried all the usual clutch, neutral, kill switch, side stand options....no difference. I'll have to locate that starting circuit cut off relay.....so far I have not heard any clicking. Somehow I am suspecting that my initially botched flashing attempts have messed up the ECU.

also check the main starter relay, maybe once you have a meter start from the s/motor control feed and work back, or you could just hot wire a feed to the motor control feed and see if its starts, if it does it may give some comfort that you haven't fried the ECU

 

[AVGeek]

Ping Anthony (AVC8130) here on the board. Heis the flash master, and may be able to help with any ECU issues.

 

[lovememyxt]

Thank you for your advice!
Got the voltage meter and was going to measure the battery. Before getting to that I wanted to solder a wire connection, and insulate it with some heat shrink tubing. That is how I discovered the degree of my idiocy when finding a coupling that I had failed to reconnect. Having put that in order I proceeded to try starting. It turned over,...the starter relay was clicking a lot and the starter began slowing down indicating the battery was low. Hooked it up to a charger and after a while was hoping that the problem was solved. Not so! The starter cranked away nicely, but no ignition. After several tries(including WOT attempts) I turned the bike off. To my surprise the engine warning light now stays on, and the display shows the ER-1 fault code. This stays on even with the key removed. The Yamaha manual gives me a number of options to investigate. I shall do so first thing tomorrow.

 

[trainman]

I have seen elsewhere that ER-1 can disappear once the engine is running and maybe related to the low volts batt.

Might be best to go for basics and check you have fuel and spark in the cylinders given your work on the ECU?

 

[lovememyxt]

In the end the failure was mostly(if not entirely) mine; ended up - while getting to testing the battery - finding one cable connection not reinserted, and another not secured properly. Flashtune was very cooperative throughout

 

[Dogdaze]

Assuming that all is well now, thank you for posting the result and happy riding days ahead ::008::