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  • 1 Post By KRUKOV
  • 1 Post By TRAIL BOSS
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Aug 14th 2016, 06:49 PM   #1
 KRUKOV's Avatar
 
  Feb 2016
  "A" Town

  Kawi & Ape
RSV4 Fuel Injector Failure

So there I am going through a left hander, nothing crazy, standard stuff when all of a sudden I smell gas followed by a huge slide.... off road I go.
Looked down & fuel gushing from under the tank, running down the left side & soaked the rear tire. I've been wrenching on bikes over 40 years & never seen a fuel injector over-pressurize to the point it popped the "O" ring out.

Any Ape riders here experience anything like this before?

RSV4 Fuel Injector Failure-20160814_120132.jpg

RSV4 Fuel Injector Failure-20160814_121004.jpg
Aug 14th 2016, 07:36 PM   #2
 DocB's Avatar
 
  Feb 2016
  Poulsbo, WA

  Aprilia RSV Mille, CBR600F, CB77, CB750K
Have the injectors ever been pulled and reinstalled? Failure usually happens because the o ring got crimped or nicked when installed. They get soft over time.
Aug 14th 2016, 09:05 PM   #3
 SilvieFox's Avatar
 
  Jan 2016
  welches, Oregon

  2008 Kawasaki Versys (Sylvester), 1972 Suzuki RV90 (vanvan), 1981 Honda TwinStar (Bobber),yamaha 225
never on a bike but had a MR2 burst into flames due to a clogged injector blowing like that
Aug 14th 2016, 09:06 PM   #4
 KRUKOV's Avatar
 
  Feb 2016
  "A" Town

  Kawi & Ape
Quote:
Originally Posted by DocB
Have the injectors ever been pulled and reinstalled? Failure usually happens because the o ring got crimped or nicked when installed. They get soft over time.
Nope, I've had the airbox off several times but never needed to pull the injectors, the were OEM installed.
I'll be doing a 2016 RSV4 RF airbox mod this winter at which time I'll be replacing all the "O' rings.

Edited by KRUKOV on Aug 21st 2016 at 12:08 AM
Aug 14th 2016, 09:35 PM   #5
 Rock Dodger's Avatar
 
  Feb 2016
  Washington

Weird failure.

I had some (3) give up on an old Jeep Cherokee, it's a miracle it didn't burst into flames!
Aug 14th 2016, 11:42 PM   #6
 TRAIL BOSS's Avatar
 
  Jan 2016
  Arlington

  A '13 ZX-14R(Mjölnir) and an '08 ZX-10R (The Son of a Bitch)
Dude... did you crash, or ride it out in style?
Aug 15th 2016, 09:37 AM   #7
 Litre Zebra's Avatar
 
  Jan 2016
  Se Portland

  A black one
This is a bit of a freaky read for someone who just bought a new v4. Im curious to see if this is a one time thing of if its a weak point of the engine

Sounds like youre ok though
Aug 15th 2016, 11:55 AM   #8
 DocB's Avatar
 
  Feb 2016
  Poulsbo, WA

  Aprilia RSV Mille, CBR600F, CB77, CB750K
Quote:
Originally Posted by KRUKOV
The 1 failed injector had no flow & with reverse pressure applied then reinstalled it began to work so must have had some sort of debris blockage.
Sounds like it might be worthwhile to pull them all and clean them to be on the safe side, if you haven't already. Pretty easy to do with a battery, a syringe, some tubing and some injector cleaner. Maybe time for a new fuel filter too?
Aug 15th 2016, 02:33 PM   #9
 MMcN49's Avatar
 
  Jan 2016
  Small Island Surrounded by Puget Sound

  07 Buell XB12STT, (Two) 12 Suzuki DR650 SE 72BMWR75/5 KIA @ 243K
Had these people Home - Doctor Injector do two injectors on my Buell. They do more than clean and its not that expensive.
Aug 15th 2016, 03:29 PM   #10
 KRUKOV's Avatar
 
  Feb 2016
  "A" Town

  Kawi & Ape
Quote:
Originally Posted by TRAIL BOSS
Dude... did you crash, or ride it out in style?
Had just enough runoff to ride it out without a drop
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Aug 15th 2016, 03:30 PM   #11
 KRUKOV's Avatar
 
  Feb 2016
  "A" Town

  Kawi & Ape
Quote:
Originally Posted by DocB
Sounds like it might be worthwhile to pull them all and clean them to be on the safe side, if you haven't already. Pretty easy to do with a battery, a syringe, some tubing and some injector cleaner. Maybe time for a new fuel filter too?
Already done but very weird for only 2975 total mi on the bike
Aug 15th 2016, 06:29 PM   #12
 TRAIL BOSS's Avatar
 
  Jan 2016
  Arlington

  A '13 ZX-14R(Mjölnir) and an '08 ZX-10R (The Son of a Bitch)
Quote:
Originally Posted by KRUKOV
Had just enough runoff to ride it out without a drop
Salty dog!!
KNanthrup likes this.
Aug 18th 2016, 05:11 PM   #13
 KRUKOV's Avatar
 
  Feb 2016
  "A" Town

  Kawi & Ape
So here's another incident posted today on the AF1 Forum that's very similar to what happened to me except this was on a 2016 with the latest airbox design. Changing over to this new design may not make a difference.

Click this link Serious fuel leak! ' 16 RSV4 RR
Aug 18th 2016, 06:05 PM   #14
DGA
 DGA's Avatar
Moderator
 
  Jan 2016
  PDX

  An Ape and a Husky
Not that it's the same, but my '15 Tuono pissed fuel all over itself from a fuel line that was not properly clipped together after the first 300 miles. Maybe it's the same guy at the factory...
Aug 18th 2016, 06:48 PM   #15
 HalcyonSon's Avatar
 
  Apr 2016
  Renton

Quote:
Originally Posted by DGA
Not that it's the same, but my '15 Tuono pissed fuel all over itself from a fuel line that was not properly clipped together after the first 300 miles. Maybe it's the same guy at the factory...
I did that once on my 650R. The weird two piece box clip deal under the tank is a bitch. Caught that as soon as I turned the key and the pump primed.
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