May 1st, 2012, 04:07 PM | #1 |
ninjette.org member
Name: Dave
Location: Lisle
Join Date: Apr 2012 Motorcycle(s): 2003 Goldwing GL1800, 2002 Ninja 250, 2001 VFR800, 1999 Ducati 996 Posts: 107
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What is this hole..??
Please can someone tell me what this hole on the left hand side of the cylinder block on the engine is, and what it does.
Fuel spurted out of this hole when I rotated the engine during my valve adjustment session tonight. I know that my carbs are in big need of inspection for fuel to get anywhere like this; I am suspecting I also have gas in my oil. A different problem for a different session. For now I just want to learn about this hole, and is this correct on my bike. Thanks..!! |
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May 1st, 2012, 04:30 PM | #3 |
Which pedal is the gas?
Name: Devin
Location: Knoxville, TN
Join Date: Mar 2012 Motorcycle(s): '09 Ninja 250R SE Posts: 192
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(troll) That's where the turbo hooks up.
(serious) http://forums.ninja250.org/posting.p...&t=81648&tro=1 |
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May 1st, 2012, 04:31 PM | #4 |
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Lol no clue dude. But if your penis fits in that hole..... you gots issues
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May 1st, 2012, 05:09 PM | #5 |
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May 1st, 2012, 05:11 PM | #6 |
The Corner Whisperer
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if you rub the engine, that is where the geni comes out.
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May 1st, 2012, 05:14 PM | #7 | |
ninjette.org member
Name: Dave
Location: Lisle
Join Date: Apr 2012 Motorcycle(s): 2003 Goldwing GL1800, 2002 Ninja 250, 2001 VFR800, 1999 Ducati 996 Posts: 107
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Quote:
Hmmm....I wonder why fuel came out of there. I am a little worried that the float bowl(s) are stuck and fuel is leaking into the engine. Or....maybe this came about whjen I pulled the tank last night. I guess I need to drain the oil and check for any signs of fuel in the oil.... |
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May 1st, 2012, 05:31 PM | #8 |
CPT Falcon
Name: J.Emmett Turner
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May 1st, 2012, 06:22 PM | #9 |
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Name: Frugal
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That is the drain hole for the spark plug wells. Both wells drain to the left side of the bike since that side is lower when the bike is on the sidestand. The only way for fuel to come out of there is if the gas tank is leaking. The spark plug wells are gasket sealed so that what's inside the motor stays inside. It's basically to drain oil leaks and rain water.
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May 1st, 2012, 08:28 PM | #10 |
Which pedal is the gas?
Name: Devin
Location: Knoxville, TN
Join Date: Mar 2012 Motorcycle(s): '09 Ninja 250R SE Posts: 192
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I don't own a pre-gen but (a little bit of) research tells me that you may want to replace your gasket after doing valve adjustment. I haven't done this myself yet (only 3,300 miles on my baby) but you may want to do this just to be sure.
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May 2nd, 2012, 08:07 AM | #12 |
ninjette.org member
Name: Dave
Location: Lisle
Join Date: Apr 2012 Motorcycle(s): 2003 Goldwing GL1800, 2002 Ninja 250, 2001 VFR800, 1999 Ducati 996 Posts: 107
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So, after reading a bunch of info, I am fairly sure that my carbs are leaking gas even when the bike is not running. This is either because of the petcock or the float needles. I am suspecting the float needles, but can prove that theory tonight when I get home and can test the tank to see if zero gas drips out when turned to 'on'.
Either my float valve(s) is stuck or the rubber tips on the float needles are worn. I have the carbs off right now for a throughly cleaning and setup, so checking the condition of the needles should be easy. Another possibility is the height of the floats, which I will also be checking / adjusting. Hopefully, it was just a case of stuck float needle(s) because the bike has not been run in ages. The fuel that came out of the drain hole was most likely fuel that had leaked into the cylinders and was pushed up and out when I rotated the crank during the valve adjustments. The spark plugs are out of the bike, so any fuel in the cylinders would easily be pushed up into the spark plug wells and drain out through the drain holes. Thanks guys..!! Dave. |
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May 2nd, 2012, 10:32 AM | #13 |
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Name: Frugal
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Both the carbs and petcock have to have problems for fuel to leak into the engine with the motor off. If you pull the hose off the petcock with the engine off no fuel should come out. If it does, the petcock needs rebuilding.
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May 2nd, 2012, 11:22 AM | #14 | |
ninjette.org member
Name: Dave
Location: Lisle
Join Date: Apr 2012 Motorcycle(s): 2003 Goldwing GL1800, 2002 Ninja 250, 2001 VFR800, 1999 Ducati 996 Posts: 107
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Quote:
Had a '95 GSXR-750 that liked to leak gas into the crankcase too, but it's float needles were all metal (not the rubber tip style), and it was the 'O' ring in the float bowl body that the float needle seated against that was causing those leaks. Same issue though. |
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May 3rd, 2012, 06:47 AM | #15 | |
ninjette.org member
Name: Dave
Location: Lisle
Join Date: Apr 2012 Motorcycle(s): 2003 Goldwing GL1800, 2002 Ninja 250, 2001 VFR800, 1999 Ducati 996 Posts: 107
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Quote:
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