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Gas mixing with oil even while motor is running. whats causing this?

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Robert Daru

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If its smoking alot oil ring on piston stuck in oil passing the piston engine will smoke

Posted on Feb 11, 2011

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Overfill oil


Sounds like the engine is tired. Blue smoke is oil burning. Hard starting is oil on the spark plugs and/or low compression. This also can be due to someone adding too much oil.
Sometimes, the carburetor Needle valve hangs u pa bit and the Crank case oil gets mixed with gas so now the oil level is high. Too much oil in a motor is bad too, that would cause theblue smoke too.

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What octane is best for older outbourd motors


Never had a problem using the lowest octane gas in any outboard motor. Even the old two stroke where gas and oil are mixed, the lowest octane worked fine.

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What type of oil for a 90 horsepower 1998 engine for a boat?


The outboard leg/transom leg oil is most important, where the gears drive the propeller it will need a heavy oil like hypoid gear oil No. 90. If it is a four cycle motor which doesn't need to have oil mixed with the gas, the base of the motor will have an oil plug and dipstick, and most likely take a high performance oil which acts as a coolant as well as a lube oil, so keep it right on but not over the full mark to avoid deadly engine heat.
If it is a Two-cycle motor you will need a 2cycle oil to mix with the gas according to that engine's particular mix strength on the instructions. Some are automatic oilers - 2cycle injection so you just keep the 2cycle oil tank full. You need to find a sticker on the motor or brochure to get the right oil weight and weather it can take the new multi-weight synthetic oils or not. Also oil the cables and steering pivots and all joints after you take it out of salt water and do your routine flush-out for the leg coolant water system with a hose - the coolant pump in the leg is not rust proof at all, even for fresh water boating.

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1 Answer

How much gas to oil ratio to run generator or straight gas


Hi,
Check for a crankcase with oil in it on the motor...if you have oil in the motor already then you do not need to mix it in the gas...
I am very sure that you will find this motor does not need the gas mixed...
Run straight gas... usually it is good to run Prem in small motors..

heatman101

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2 Answers

WHAT IS THE MIXTURE OF OIL TO GAS AND WHAT TYPE OF OIL DO I NEED FOR A HOMELIFE LEAF BLOWER. PLEASE ADVISE THANK YOU


all new homelite are run on a 40/1 mix i run mine at 30/1 i look at it this way,,,its a 2 stroke,,,it needs oil to stop it sezing up,,if i can see a little smoke then its got oil,,,mine is 15 years old and still going?????

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1 Answer

Fuel mix ratio for 1939 evinrude 3.3hp motor


If you use synthetic or newer oils, follow the recommendation of the oil manufacturer.

Being from 1939, a 2 stroke engine would have been designed to run leaded gas and a very unrefined oil that would burn easily in the combustion chamber. Today's gas and oils aren't even close to what they were in 1939.

If you use a synthetic oil, the mfg's recommendation is usually something like 50:1.

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2 Answers

What happens if you dont mix oil into the gas?


You blow up. Depends, does your bike have oil injection? Then you don't have to mix the oil in the gas, If it doesn't, then you will have to mix it in the tank. No lubrication in your engine, and I will give it about 10 mins before it seizes up from heat. And don't try to sneak motor oil in there in a pinch, because it won't work. Motor oil compared to 2 stoke oil is like 40 grit sandpaper to a babies ****. I'm talking rough. I use 2 stoke for everything, it is super lube. Hope this helps.

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2 Answers

My weedeater brand trimmer won't start


I believe you have the wrong GAS AND OIL MIXTURE. MOST WEED EATERS are a Ration of 90:1 or even less 75:1 For WEEDEATER I would use a 50:1 or if you choose 32:1 should work. Use a good 2-stroke oil. DO NOT USE ANY OTHER OIL> You see the more oil you use the harder it is to start. Don't forget to Pump the fuel Bulb on the side before trying to start it.About 3 x should do it. GOOD LUCK and it is and does effect me when their is death by a LOVED ONE. My prayers are with you! From Mddoc13 ( BOB)

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1 Answer

If the oil and gas mixture is not right what will happen to the motor? What is the right mixture? Evenrude 28 hp 1960's 2 stroke


you need to call a marine engine shop and ask them the proper mixture for that motor. To Much oil in the mix will only cause your motor to smoke excessively and may cause the plugs to foul quicker, but to little oil is when you start having problems. With to little oil you are not getting proper lubricarion, thats going to where all your mechanical parts like the piston, rings, cylinder walls, connecting rods, crankshaft, to wear really bad in a short period of time. Since there is so much friction from the parts wearing so fast thats going to generate heat, which is going to lead to locking up your motor. If no one can tell you the proper mixture just remember that it is safer to have to much oil in the mix than not enough, even though too much oil will make it look like your spraying for mosquitos with all the smoke. hope this helps.

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2 Answers

Dieying of the bike


Check the compression, I dont know what the manufacture calls for the gas oil mixture ,but that sounds too lean..

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