Technical / Diagnostic help Request

Ozzy001

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Riding for 12 Years
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Today, 05:15
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May 23, 2020
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Age
35
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Portsmouth
First Name
Paul
My Ride
2012 Street Triple R
Hey,

My 12' Street Triple is very unwell and I'm all out of ideas as to what might be wrong :-(
Bike only has just over 6,000 miles on it, and it lives in a garage.

Problem description:
Was running fine, then squirted it with a pressure washer (not smart I know #shame). Then it intermittently seemed to drop a cylinder, then dropped two, then all. :cry:
turns over fine, but doesn't even try and fire most of the time, occasionally sounds like one cylinder tries to fire but that's not enough to run on its own and then it reverts back to not firing.

Diagnostics I have done:
  1. Fault Codes (dealerTool): None.
  2. Spark test, All - I get a spark ( Coil lent against the frame with the plug in, turn over can see the spark and looks strong)
  3. Fuel Delivery system - total disassembly (minus fuel pump/filter) and check all is good - Dealer tool reports injectors pulsing - all pinout tests - all report good ( Can't test if the injectors are blocked, but all 3 at the same time seems unlikely) - Used the pump test to empty the tank, and fuel quality and flow rate were good.
  4. Air - I gots air.
  5. Main ground point in the centre of the bike to the frame looked ok, but cleaned/decreased and tightened, same with battery terminals.
  6. Used DealerTool to look at sensor values etc.
    1. Throttle position sensor = good
    2. MAP = good,
    3. Fall detection switch = good
    4. Side stand switch = good
    5. Clutch switch = Good
    6. Throttle balance shows good pressure and balanced
    7. O2 = Good
    8. Secondary Air Injection = Good
    9. Timing etc = good.
  7. As the Injectors are pulsed, ASSUME that the crank position sensor is good
  8. All Fuses are good, connections cleaned.
So, I'm out of ideas of what else it could be, and very much open to suggestions :oops:
 

Qship

Riding for 39 Years
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Steve
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'17 Tiger Explorer XRT
I would check the crank position sensor a bit better. Also pull all electrical connections and spray with WD40 (displaces water). Reseal with dielectric grease. May only get the right scan at dealer.
 

shanered6

Time for adventure
Riding for 44 Years
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shane llywarch
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Moto Guzzi Stelvio 1200 ntx
I would be looking at the clutch lever switch and the side stand switch as they cut fuel supply to the injectors , the pump will still run but just circulate fuel back in to the tank .
Also the ignition switch is prone to water ingress and check fuses for corrosion and finaly as @Qship says WD40 the hell out of everything
 

triumph david

Riding for 60 Years
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david
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1976 t140 Triumph, 2006 Road King, 1982 Honda CB 900 C, 1973 Yamaha 360 Enduro, 1972 Corbin
I would bet some water is somewhere, unplug everything and wait `untill it dries out. A little air pressure may help.
 

Ozzy001

Member
Riding for 12 Years
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Today, 05:15
Joined
May 23, 2020
Messages
3
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Age
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Portsmouth
First Name
Paul
My Ride
2012 Street Triple R
Right -O chaps and Chapesses I have finally found out what issue was!

After a complete disassembly and reassembly, and a worn-out battery on my multimeter and some sore fingers later, it was...... water in the gas tank :X3a:
 

Greyfell

Proud Nerd
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Northern California
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Stephen
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2008 Triumph Bonneville T100 Ann-Margret
Thanks for reporting back, and glad it is finally solved. I hope it gets back to being a great ride for you.
 

CarlS

Charter Member #3
Riding for 62 Years
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12 Tiger 800 XC
Right -O chaps and Chapesses I have finally found out what issue was!

After a complete disassembly and reassembly, and a worn-out battery on my multimeter and some sore fingers later, it was...... water in the gas tank :X3a:
Ouch! After all all that - a simple solution. Glad you got ir solved. Thanks for reporting back. That may help someone else.
 

triumph david

Riding for 60 Years
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Local time
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brookhaven
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david
My Ride
1976 t140 Triumph, 2006 Road King, 1982 Honda CB 900 C, 1973 Yamaha 360 Enduro, 1972 Corbin
Most times its simple, and that leaves me out most of the time.
 
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