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Offline Craigasaki

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Re: Bike won't start
« Reply #30 on: Mar 13, 2018, 06:52 PM »
 :celebrate:
More tea, no biscuits

Online TowerMan

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Re: Bike won't start
« Reply #31 on: Mar 13, 2018, 07:57 PM »
*Originally Posted by uralrob [+]
Might also check the fuel cap vent. That suction doesn't sound normal. Some years back I think Towerman did a post on clearing the vent.
Rob.

Found it  :028:

*Originally Posted by TowerMan [+]
  January 07, 2015, 15:30:38
I think that there are 2 things wrong with your fuel tank.

1. As said previously the well outside around the tank cap is just there to collect the fuel that may get out through this seal and if the drain is blocked it will cum out over the top down the tank. :023:

2. However the other thing that could be blocked (which causes the buildup or vacuum in the tank) will be the labyrinth seal in the fuel cap, that allows the excess pressure inside the tank to be slowly be released to the outside.
If blocked this will cause the petrol eruption you experienced, if the tank if very full of fuel.  :33:

As it says in the 2007 Service Manual-page 184 (3-108):

"Fuel Tank and Cap Inspection-
Visually inspect the gasket on the tank cap for any damage. Replace the gasket if it is damaged.

Check to see if the water drain pipe and fuel breather pipe in the tank is not clogged. Check the tank cap breather also. If they are clogged, remove the tank and drain it, and then blow the breather free with compressed air.

CAUTION-!!
Do not apply compressed air to the air vent holes in the tank cap. This could cause damage and clogging of the labyrinth in the cap."


Richard   :001:
                         

Details HERE  :123A:

Online Ted99UK

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Re: Bike won't start
« Reply #32 on: Mar 13, 2018, 08:26 PM »
*Originally Posted by Bart [+]
Good news Ted, have you tried running it with the fuel cap open ?

No Bart,but it runs fine with it shut.
Ted.

Online Ted99UK

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Re: Bike won't start
« Reply #33 on: Mar 13, 2018, 08:27 PM »
I will read the manual tomorrow morning about the tank vents and air bleeds etc.

Online uralrob

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Re: Bike won't start
« Reply #34 on: Mar 14, 2018, 12:50 AM »


 Good news, Ted. Lets hope that a gummy cap vent is the only problem.

 On a couple of occasions when wondering about the cap vent I have gone for a diagnostic ride with the spare key in the cap so, should the bike start stuttering, I could easily crack the cap open to cancel out any pressure difference. What works in the garage might not work when the engine is under load and demanding more fuel.

 Rob.
Don't take Life too serious, it's not permanent.

Offline JvdPal

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Re: Bike won't start
« Reply #35 on: Mar 16, 2018, 01:14 PM »
Could it be there was a bit of water in the tank. I had the same thing happen to me with an outboard which I put away with an empty tank and due to condensation there was water in the petrol. After cleaning the carb out and replacing the old fule all was well again.

Online uralrob

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Re: Bike won't start
« Reply #36 on: Mar 16, 2018, 04:09 PM »


   :028:

 One of the reasons for using fuel saver. Most of them contain a water dispersant of some sort.

 Rob.

 
Don't take Life too serious, it's not permanent.

Online Ted99UK

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Re: Bike won't start
« Reply #37 on: Mar 16, 2018, 04:15 PM »
My tank was almost full.
Ted.

Online uralrob

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Re: Bike won't start
« Reply #38 on: Mar 16, 2018, 04:24 PM »


  :028: That too.

 What are the typical temperature range/humidity levels in you storage area, Ted?

In my building which is only heated when I'm in there temperature can vary from -10 to + 25 within a few days. I can hear the tank inhaling and exhaling as the contents expand and contract and see the fuel level from the outside by the condensation line on the tank.

 Rob.
Don't take Life too serious, it's not permanent.

Online Ted99UK

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Re: Bike won't start
« Reply #39 on: Mar 16, 2018, 04:52 PM »
*Originally Posted by TowerMan [+]
Found it  :028:


Richard   :001:

I can't make sense of the manual 3-108
The reference to the fuel breather pipe (C) in the tank.
I can see the water drain pipe (B) and the two tank cap breathers (D), but I can't see a fuel breatherpipe. The arrowed bracket with a round opening just appears to be where the nozzle from the tank cap breather sits.
I can't see why there would be another fuel breather pipe. If the fuel expands with a full tank it will lift the tank cap off its seat against the springs and the fuel will run down the water drain pipe or just overflow onto the tank if there is too much.
Ted.