Need Help FZ6 won't start

Herman

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My Yamaha Fazer FZ6 (2006) has been standing for a while. I replaced the battery but she won't start.
The starter turns but the bike does not fire

Immobiliser light goes off when I turn the ignition key and the display lights up.
Opened and checked stand switch.
I can smell petrol/gasoline if I turn the throttle while pushing the starter button.

Any ideas or suggestions
 

Gary in NJ

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If you can smell fuel, you likely have fouled spark plugs. If you happen to have a spare plug, insert it into either the #1 or #4 cap, ground the electrode to the engine and engage the starter. Check for spark. If you are getting spark. Now remove the plugs and check again.

When you say that the bike has been "standing for a while" - how long is a while? You could have bad fuel.
 

Herman

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Hi Gary

I am not very mechanically minded and don't want to "dig" to deep into my Fazer.

I did empty the tank and changed the fuel
 

Herman

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I found a link on how to go into the diagnostic mode and found the following.

All modes are correct except side stand switch. No error codes

d20 - on - Stand status (it does not change to off if I open or close the side stand.)

So I did the following.

Open the stand switch and bridged the contacts - d20 still on
Unplugged the blue stand switch plug under the seat - d20 still on
Bridged the two contacts points in the switch a screw driver - d20 still on

So I have a few questions.

1. Is d20 used for the side stand switch?

2. If it is, must it be on or off for the bike to start?

3. Must there be a certain resistance to change the switch.

Thanks for any help
 

Motogiro

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I found a link on how to go into the diagnostic mode and found the following.

All modes are correct except side stand switch. No error codes

d20 - on - Stand status (it does not change to off if I open or close the side stand.)

So I did the following.

Open the stand switch and bridged the contacts - d20 still on
Unplugged the blue stand switch plug under the seat - d20 still on
Bridged the two contacts points in the switch a screw driver - d20 still on

So I have a few questions.

1. Is d20 used for the side stand switch?

2. If it is, must it be on or off for the bike to start?

3. Must there be a certain resistance to change the switch.

Thanks for any help
If the starter will crank it's not the sidestand safety issue.
Being you may have had a fuel issue and you smell fuel, as suggested by Gary, you might pull the plugs and check for fouling and confirm you have spark.
 

Herman

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I found another FZ6 and checked the Diag mode.

d20 is the side stand switch
Side stand open (bike on stand) d20 = off
Side stand closed (bike of stand) d20 = on

Checked the plugs, no spark

in d61 I get a fault code 12 and 30

Fault Code 12 = No normal signals are received from the crankshaft position sensor.
Fault Code 30 = The motorcycle has overturned.

How do I clear the fault codes? (cycling the engine kill switch does not work)
 

Motogiro

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I found another FZ6 and checked the Diag mode.

d20 is the side stand switch
Side stand open (bike on stand) d20 = off
Side stand closed (bike of stand) d20 = on

Checked the plugs, no spark

in d61 I get a fault code 12 and 30

Fault Code 12 = No normal signals are received from the crankshaft position sensor.
Fault Code 30 = The motorcycle has overturned.

How do I clear the fault codes? (cycling the engine kill switch does not work)
Disconnect the battery negative lead from the battery. Let it set for 15-30 minutes. Reconnect and do not try to start the engine. Turn the key to on and see if the codes cleared. If the codes are cleared try to start the engine if the engine fails to start, read the fault codes. If you see #12 you have a problem with the Crankshaft Position Sensor (CPS) The lean angle code may have been recorded some time ago from the bike being on it's side.
 

Herman

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I took the battery out and put it on a trickle charger for 2 hours.

Replaced the battery and went straight to Diag mode.

Fault codes still the same, they did not reset.

I checked the lean angle in Diag 08 and it was 0.7 within spec. (my paving is slightly skew)
 

Ohendo

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You can erase the stored codes once you're in DIAG mode.
Navigate to diagnostic code 62 "Malfunction history code erasure". This will display the total # of codes detected. Then flip the engine stop switch from OFF to ON (If already in ON, turn it off, then back to ON).
You should see a reset of codes.
 

Herman

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Hi Ohendo

I tried your method, as per service manual, see post 20th June. It does not clear the codes.
 

Herman

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I measured crank sensors ohms and it measures within range 285ohm.
(Info from a You tube video)

I spoke to a fellow Fazer owner who had a similar problem, code 12 in d61, he also could not clear the code and his bike also
did not start. He had the sensor replaced and his Fazer still showed code 12 in d61 and would not start.
Rebuilt his engine (crank replaced ect.), still same problem.

He decided to sell his bike, one of the potential buyers, showed him how to reset the code, the buyer wanted to test drive
his Fazer.

He unfortunately does not have the persons contact info anymore so I can't contact him.

I have worked thru the service manual and everything checks out, BUT still no start.

Any genie out there that might have a suggestion, your help would be greatly appreciated.
 

Motogiro

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There is a supply voltage that feeds both those sensors as well as other sensors that you have a code for. The wire color code coming from the ECU is black with a blue tracer. Make sure your ECU plug has clean pins. Unplug the ECU and test that you have continuity between the black with blue wire at the ECU plug and the black with blue tracer wire at the Lean Angle Sensor and Crankshaft Position Sensor.
Please get back to us with your findings. If you don't see continuity there is an open in the wiring.
 

Herman

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Hi Ohendo

I tried it again.
1. In diag I go to d61 and it shows 30 and 12
2. Then I move to d62 ( Shows 2) switch kill switch On and Off
3. Nothing happens
4. Switch bike off using key
5. Go back into diag still the same d61 30 and 12, d62 shows 2

I tried it with the Red Motorcycle key and the Black one.
Turned the kill switch from Off to On, On to Off to On and Off to On to Off

The kill switch does work, Off starter won't turn, On starter turns

I added video to show what I did. (had to zip them, I can't load video direct)

@Motogiro, will check
 

Attachments

  • Diag and Kill Switch.zip
    17.7 MB · Views: 8

Herman

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Apologizes for the late reply, things came up and I had to leave the bike problems for a while.

@Motogiro

I unplugged the ECU and both the lean angle sensor plug and crank sensor plug. Tested with a multi meter and
both had continuity (Beep).

Lean angle sensor > Blue wire, black and blue wire, yellow and green wire
Crank sensor > Gray wire, Black and blue wire.

Tried to clear error codes, no joy.
 

Motogiro

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Apologizes for the late reply, things came up and I had to leave the bike problems for a while.

@Motogiro

I unplugged the ECU and both the lean angle sensor plug and crank sensor plug. Tested with a multi meter and
both had continuity (Beep).

Lean angle sensor > Blue wire, black and blue wire, yellow and green wire
Crank sensor > Gray wire, Black and blue wire.

Tried to clear error codes, no joy.
You should be able to clear those codes. I almost seems like the ECU is not responding. If the key is on and you turn the kill switch off and on while in diagnostic 62 the stored codes should clear per Ohendo.
 

Ohendo

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Are you sure your engine stop switch is functional? It may be shorted either intentionally or not which would prevent you from clearing the fault codes while in D62.
With engine stop switch off, when you turn the key on ignition do you hear the fuel pump spin for a few seconds?
With engine stop switch off, does the starter crank when you hit the start button?
If either of the above is true, your stop/start switch is permanantly 'on'.

BTW, I don't think clearing the fault codes is going to help get the bike started. You still need to pull the plugs as Cliff and Gary recommended to do some further mechanical testing.
 

Motogiro

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^^^^ Good Call ^^^^ that kill switch may have been bypassed. Once the codes are cleared and you see a new error code it would help give a better idea of what's happening.
 
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