misfire at all speeds - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #1 of 16 (permalink) Old 11-03-2019, 12:10 PM Thread Starter
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Question misfire at all speeds

Hello!


I have a 2006 FJR Gen 2, about 45000 miles on it.
Situation: Battery was unplugged from tender for a week. Didn't know this - took off for a ride. Poor running and stalled out in 4 or 5 blocks.
Replaced battery with new. Spins well, starts every time, continues to misfire at idle, low RPM and high RPM.


Drained gas (with too much SeaFoam - full can for the 7 gal tank). Refilled with clean no-ethanol gas. No change in behavior. Added Sta-Bil since it's going to sit for a while.


Checked the codes; don't know how to read them. Have found R1 code sheet, but not FJR1300 code sheet.


Air filter is clean.


Ideas, thoughts, suggestions, processes to walk through? Tools include 1) cheap DVM; 1) asston of sockets, wrenches, hex keys.


--
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post #2 of 16 (permalink) Old 11-03-2019, 12:37 PM Thread Starter
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Pulled the codes (I think correctly) the other week, got this:
D1 = 16;
D3 = 96;
D5 = 73;
D6 = 70;
D20, 21 = 'on';
D57 = 00;
D60 = 00;
D61 = 22;
D62 = 1;
D70 = 0.


Spider recall recently done at Reno's Powersports. Ran fine after the recall was done.


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2006 Yamaha FJR | 2018 Ducati Monster
STOC# 4167 | IBA #11383 | MSTA | MaDOG | HOAME | Overland Park,KS

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post #3 of 16 (permalink) Old 11-03-2019, 12:42 PM Thread Starter
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Pulled the codes (I think correctly) the other week, got this:
D1 = 16;
D3 = 96;
D5 = 73;
D6 = 70;
D20, 21 = 'on';
D57 = 00;
D60 = 00;
D61 = 22;
D62 = 1;
D70 = 0.


Spider recall recently done at Reno's Powersports. Ran fine after the recall was done.


--
"I am a poster child for 'Dont Do That!' -- Me, 8/2003
2006 Yamaha FJR | 2018 Ducati Monster
STOC# 4167 | IBA #11383 | MSTA | MaDOG | HOAME | Overland Park,KS

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post #4 of 16 (permalink) Old 11-03-2019, 12:55 PM
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Mechanics rule of diagnostics.
Pull plugs and check condition.
Compression test.
Spark test.
Fuel pressure test.
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post #5 of 16 (permalink) Old 11-03-2019, 03:28 PM
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Quote:
Originally Posted by wengland View Post
Pulled the codes (I think correctly) the other week, got this:
D1 = 16; - TPS... rotating throttle will display range of motion
D3 = 96; - Intake air pressure
D5 = 73; - Intake air temp
D6 = 70; - Coolant temp
D20 = ON; - Sidestand switch, sidestand up
21 = 'on'; - Gear position switch in neutral

D57 = 00; - Grip warmer??
D60 = 00; - EEPROM has no history
D61 = 22; - Fault code 22 (if multiple, they will cycle through)
D62 = 1; - Confirms 1 fault code stored, in this case code 22. To erase, cycle the STOP switch from OFF to ON, then OFF
D70 = 0. - Control number


Spider recall recently done at Reno's Powersports. Ran fine after the recall was done.
If you do not have a service manual, you should get one.....

I have added the description to your items...
Fault code 22 is Intake Air Temperature Sensor... I suspect since you have a reasonable temp reading (D5 - 73F) that agrees with your coolant temp, it is a false code. Clear it and see if it returns next ride.

If the other spiders have never been checked/serviced, perhaps check condition, clean and lube with some (carbon) contact paste.
Agree check/change the spark plugs... with time, may be poor connection where spark plug wire joins the spark plug adapter... pull/unscrew the adapter, snip off 1/4" of wire, spread strands and screw/push the adapter back on. This will refresh these connections.
Let us know how that works out....
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post #6 of 16 (permalink) Old 11-03-2019, 05:04 PM Thread Starter
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Thanks - good tips! I'll work on plugs this week and inspecting the wire harness / spiders.


N00b question - how do I reset the codes from the dash?


(I grok OBDII but not this proprietary thing...)


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2006 Yamaha FJR | 2018 Ducati Monster
STOC# 4167 | IBA #11383 | MSTA | MaDOG | HOAME | Overland Park,KS

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post #7 of 16 (permalink) Old 11-03-2019, 05:12 PM
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OBD didn't come into being on FJR's until 2016....

Once you are in the DiAG screen, to reset, see my note at D62... cycle the kill switch....
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Ray
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post #8 of 16 (permalink) Old 11-03-2019, 05:20 PM Thread Starter
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Thanks - good tips! I'll work on plugs this week and inspecting the wire harness / spiders.


N00b question - how do I reset the codes from the dash?


(I grok OBDII but not this proprietary thing...)


--
"I am a poster child for 'Dont Do That!' -- Me, 8/2003
2006 Yamaha FJR | 2018 Ducati Monster
STOC# 4167 | IBA #11383 | MSTA | MaDOG | HOAME | Overland Park,KS

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post #9 of 16 (permalink) Old 11-04-2019, 11:46 AM
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Just a thought... and I'm not the expert mechanic that many here are... but I had a misfire like this that I could not figure out. With a temp gun I found that it was a specific cylinder not firing. Changed plugs, checked wires, still no good on that one cylinder. I suspected a bad coil, so I tested that coil with a meter and it returned perfect numbers. Reinstalled and the dang thing still was missing on that cylinder.

Then, from a comment on an R1 forum, same exact coil, a user had a coil go bad and it wouldn't show any faults except that it wouldn't fire.

I bit the cost (I think around 60 bucks) for the new coil and it ran perfectly. I later found that Yamaha outboards use that same coil and were having occasional failures. It was just a bad coil.

Years later, the bike still runs perfectly for its current owner.
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post #10 of 16 (permalink) Old 11-05-2019, 08:27 PM Thread Starter
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Thanks - no 'non contact infrared pyrometer' in the toolbox (as badly as I want one, just so I can say 'non contact infrared pyrometer).

I'll start with plugs, airbox sensor, and go from there.
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