2008 fjr1300 cutting out - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #1 of 15 (permalink) Old 09-15-2020, 02:50 PM Thread Starter
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2008 fjr1300 cutting out

hi, I've just purchased a 2008 fjr1300 with 6700 mile on the clock. Its been stood for 4 yr..
I've taken it out, and after warm up when the idle settles, it just keeps on cutting out when I go to accelerate from idle.. example, when approaching a rounderbout or a turn at junction I pull in the clutch, coast round the corner and when I go to accelerate, it just cuts out. Same thing happens if I'm just sat there and tdy to just blip the throttle, it cuts out. If I turn the throttle slowly it revs up alright. I've changed the fuel and filled the tank incase the fuel was bad.. Any ideas?
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post #2 of 15 (permalink) Old 09-15-2020, 03:47 PM
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Sounds like dirty injectors. Of course you should be sure to be up to date on all your maintenance, but most likely the gas went bad and left some gunk in the injectors. You can try seafoam first, put a whole can in and run it on the freeway. You still might have to pull the injectors and clean them though...
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post #3 of 15 (permalink) Old 09-15-2020, 03:57 PM
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Increase the idle to about 1100.
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post #4 of 15 (permalink) Old 09-15-2020, 04:46 PM
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Have you checked the air cleaner since it as been sitting?
+1 on the Seafoam.
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post #5 of 15 (permalink) Old 09-16-2020, 11:54 AM Thread Starter
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WhT is sea foam? I have just added a dose of redex into half a tank of fuel.. im gonna give it a run at weekend down the motorway.. ive read somewhere that there was a recall on the throttle sensor on early 2008 models.. could it be this.?
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post #6 of 15 (permalink) Old 09-16-2020, 12:35 PM
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Hey Darren, Welcome to the site?
Put in your location.

Seafoam is an American additive that does wonders for the American market fuel systems! We have so much corn in our gas, that it can stop up an injector like like a vat of cheese at the state fair!

Product Overview:

"It is a petroleum-based cleaner, lubricant, stabilizer and moisture controller that maintains fuel and oil system components. It will not harm engine components, seals, gaskets, catalytic converters or oxygen sensors. Sea Foam Motor Treatment should be a staple in everyone's garage. Works and Performs Quickly. Sea Foam Motor Treatment can be added to gasoline and diesel fuel, oil crankcases and gasoline induction/vacuum systems."

And:

"For gas and diesel engines
Clean injectors
Clean CARB jets
Clean deposits
Control moisture in fuel systems
Add lubricity and protection to fuel
Anti-corrosive
Lube upper cylinders
Quiet noisy lifters
Stabilize fuels for up to 2 years
Clean passageways
Liquefy gum and varnish
De-ice and anti-gel
Clean intake valves
Clean pistons"

From one of my old bikes, that had carbs.

Because this is what happens, when you have ethanol in your gas, and don't treat the gas to mitigate it:


And the float bowl:



FI bikes are a little better, but... you may have a slime clogging your injectors. Seafoam will break it down into smaller molecules that you can then either burn, or pump out through the exhaust.

'06 FJR1300A Orion the Hunter

Greg
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post #7 of 15 (permalink) Old 09-16-2020, 01:53 PM
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seafoam will probably clean it out, just be aware that she's going to put out some smoke with a good dose of seafoam, and the smoke is normal. Probably going to run rough also, with a good dose of seafoam, again, normal. Might take more than one treatment too.

A bike that old with so few miles, quite a find. Too bad the last owner didn't take some proper action for such long storage.
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post #8 of 15 (permalink) Old 09-16-2020, 02:34 PM
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Oh, yeah, TRnCO is SO right!!!!

Lotta white smoke, but it is very OK!! Doesn't smell too bad either!

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post #9 of 15 (permalink) Old 09-16-2020, 05:34 PM
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Seafoam is mostly naptha (slow acting solvent for gummy stuff) and isopropanol (for water separation in ethanol fuel). Most injector cleaners have a high content of naptha, some add a bit of a harsher solvent as "injector cleaner". WD40 is mostly naptha and a bit of light oil by comparison.
You should be able to find the MSDS sheet for any of those products.

Ray
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post #10 of 15 (permalink) Old 09-16-2020, 07:13 PM
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Please consider making or modifying your forum signature to include the bike year and model you own. That way there's never any confusion since different model yrs have different stuff and are disassembled different ways.

To create or edit your sig, hover over the word 'TOOLS' in the black bar near the top of the page. A drop-down menu appears, click on 'USER CP'. Then on the left you will see "EDIT SIGNATURE". Click it, do it and save it.

Adding your location so it shows up under your user name can be helpful, too! This is also done under TOOLS/USER CP. Then click on 'Edit Your Details' on the left.

Russ
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