Question about 1994 kawasaki VN 750 Vulcan

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What would cause gas to be in a crank case, bike has sat for a little over a year. runs good but is getting fuel in the oil. am i on the right track thinking it is a problem with a sticky float?

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  • kawasaki Master
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Yes sticky float and possible a problem with the fuel tap. It should have a vacumn opperated tap that turns off when the bike is not running.
Try to avoid ethanol fuels

Posted on Jun 07, 2010

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Posted on Jan 02, 2017

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1 Answer

Why is my 98 1200 Harley Davidson Sportster building pressure in oil reservoir and filling up and smells a little bit like gas


Mitchel. Fuel is probably getting into your crank case/oil because of sticking floats in the carburetors. Do not run your bike in this condition, severe damage could occur to engine. If you must run to get it to a shop for carburetor check/rebuild change oil first or have bike trailered in.

Apr 10, 2016 | Harley Davidson Motorcycles

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I just recently bought a 1973 yamaha TX750 and I am having some Oil level issues 1 being I drained the old oil seeing as that the bike hasnt run in 10 years and figured itd probly be a good idea,but the...


was the 2.8 liter for the crank case or total system capacity, one thing you want to absoulutley avoid is over filling the crank, one thing to check is to see if oil is making its way into the crank via the oil tube, also is it a 2 or 4 stroke, 2 strokes require a oil mix for the gas not the crank and a specific ratio, unmixed gas in a 2 stroke = siezed motor,

Sep 26, 2013 | Yamaha Motorcycles

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I have a 2004 kx250f. The first ride of the year I noticed my bike bogged in the air and a little when I landed. When I get on the gas hard I dont feel it. Whats going on?


If the bike sat up for the winter, it's a real possibility the carb jets and fuel passages are gummed up. If this is the case, I recommend 1/4 to 1/2 can of SeaFoam added to your fuel. Lock down the front brake and rock the bike back and forth to mix the additive with the gas. Crank the bike and run at high idle for a few minutes, and since it is rideable, ride like you normally do and see if it gets more responsive after an hour or so.

Apr 15, 2011 | kawasaki KX 250 F Motorcycles

2 Answers

Chainsaw won't stay running at full throttle


15 years old...

One cause to look in too is a leaking seal around the crank, this is causing a vacuum leak.

Hope this tip helps.

R/
David

Jan 27, 2010 | McCulloch 16 In 4.5 Hp Electric Chainsaw...

1 Answer

Possible seal failure


Gearbox oil may be getting into the crank area. Check the oil in the crank, is it motor oil or two stroke oil? If it is motor oil then you will need to split the center case and clean/re-seal the case halves. Be sure to install new crank seals. New crank bearings? If 2 stroke oil, just put a cup of gas in the crank to thin the oil, rotate the crank a few times to mix gas and oil, then just tip the bike over to dump the mix out of the case. If the bike has an oil pump, see if you can lessen the stroke of the pump. If mixing 2 stroke oil in the gas tank, Be sure to use only 2 stroke engine oil at 32 to 1 ratio. That equals 4 ounces of oil to a gallon of gas.

Nov 18, 2009 | 2000 Husqvarna WR 250

1 Answer

Bike has sat up for a year or so,wont start,cranks fine,has spark,maybe bad fuel ?


If no fuel stabilizer was added while the bike sat for a year or so.
It is most likely bad fuel with gum deposits.
This can can create some problematic symptoms for you.

It is vital the bad fuel to be cleared from tank/lines and carbs.
You may need the fuel system cleaned as the gum deposits can cause major headaches in the carbs and jets. If the system is not cleaned and even after you get the bike running, you could be miles away and have the fuel fowl jets/injectors, causing shut down.

Check the spark plugs carefully. Oil on the plugs may just need cleaning. Once you get the bike running the oil should burn off if the rings are still in good shape.

Motor needs clean Air, Clean Gas and a hot spark.

Good luck!

Oct 04, 2009 | 1995 Yamaha XV 535 Virago DX

2 Answers

Bike wont start


I posted this for a similar problem, maybe it can help. Are you sure it's getting gas to the carbs? Some people don't realize the 99-02 SV650 has a vacuum-actuated fuel pump, and sometimes it can get stuck. Mine has had this problem, and it took me a while to determine it was the problem. I would guess it only happens after the bike has been sitting a while (ours unfortunately sat for a year or so without being run).

Best way to check it is to lift the tank (it's bolted to the frame on the right side of the engine just under the tank). Unplug the line toward the front of the motorcycle from the fuel pump, and connect some spare fuel hose to it running to a can next to the bike (don't want to get gas everywhere!). With everything else still connected, crank the bike for a short period to see if any fuel comes out (shouldn't take long). If not, then move backward and ensure fuel will flow from the vacuum-petcock when the bike is cranked. If that does work, your fuel pump needs some work. I was able to take mine apart and unstick it.

Aug 03, 2009 | 2001 Suzuki SV 650

2 Answers

Gas in the oil


????
what engine are you talking about ?
sounds like the floats are stuck in the carb and have flooded the engine, strip and clean the carb (s) out, change the oil and then try to restart bike.

Jun 21, 2009 | 1982 Honda GL 1100 Innerstate Gold Wing

2 Answers

2001YZ426F oil blowing out vent tube


Dear pmg1, Sat 02-21-2009 5:37pm EST (USA)

RE: 2002 Yamaha YZ 426 F
or
2001 YZ426F

"Hard to Start if any and/or Oil Blowing Out Vent Tube"

RE: ABOVE is what I'm reading @ the fixya Site @
http://www.fixya.com/PostAnswer.aspx?thid=1695323&prdid=986097&ctgid=391 so.......

Is your Yamaha a 2000 or 2001?
Did You try to start it several times, then it kicked in a little, then a little more, then
started spitting oil and won't even start?
Has it been sitting for quite some time?
Did you put new gas in it?
If so...................................................
Check the OIL and replace if needed..........................................
Put in a can of high test GAS...Spend at least $10.00!.................
Spray a lot of Starter Fluid ($3) into the Air Intake........................
Crank Engine!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !

When you get it running, IF IT'S STILL BLOWING OIL .............................
Add a can of CRANKCASE SEAL'S LEAKS (less than $10) for conditioning
the seals............................................and......................................................

NEVER USE YEAR OLD GAS AGAIN AND ADD FUEL CLEANER AT
EVERY OIL CHANGE!

jack
b806e68.jpg

Feb 21, 2009 | 2002 Yamaha YZ 426 F

3 Answers

Engine won't turn


climate/ humidity? possible rust in cylinders? try some marvel mystery oil in the spark plug holes...oil doesn't lubricate static pistons...after setting always pull plugs and motor over before starting; I know 2 little too late; these are beasts; alittle oil on top of the pistons will break free

Jan 26, 2009 | Harley Davidson FLSTC Heritage Softail...

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