Question about 2004 Suzuki RM 125

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Suzuki problem no i mix the gas on a 2 galons tank. and i'm doing 1:22 but the problem is when i start the bike comes dark oil on the exchaust and i took the front cover on the top of the exchaust and there is full with the same dark oil. to me it looks like engine oil and i'm not sure if that oil in there is normal. but i still can understand how the oil goes there. you think it can be the piston ring losing compretion?

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Your crank seal has gone engine oil will will find its way through sa it gets worse you will have problems even starting the bike and if it does start it will run badly replace seal and replace rings gaskets and decoke exhaust and piston top and port this will in effect solve the problem

Posted on Jan 20, 2009

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Is my 81 ts185 a 2 or 4 stroke. Everyone is telling me different things. The bike is older than me. I would assume 2 stroke. But I'm not sure. Please help me.


Deffinately 2 stroke there should be a small oil tank under the seat or one of the side covers. If not mix oil it in fuel tank at 20:1 Regards Jim. Suzuki Technition.

Mar 16, 2015 | Motorcycles

1 Answer

I have a 1993 Honda 125cc was told to mix gas but these oil in crankcase do I need to mix?


You would never mix any fuel and oil for the crankcase. If it is a 2-stroke engine, the fuel and 2-stroke oil will need to be mixed before entering the cylinder. Some engines have an automatic mixing setup - those have a separate oil reservoir for 2-stroke oil, but it will usually be a plastic tank, located nowhere near the crankcase. On a "4matic" engine, it fires like a 4 stroke, but there is no crank case, and the fuel needs to be mixed like a 2 stroke. What is the vehicle you are referencing? A dirt bike or street bike? It seems the CR125 and NR125 are both 2 stroke engines, so somehow the fuel needs to be mixed with 2-stroke oil. Can you take a picture of the crankcase oil cap?

Feb 04, 2015 | Honda Motorcycles

2 Answers

I was given a 2000 yamaha DT 125 and i was told needs regular fuel and 2t oil but i dont know the combination or how much mix to the gasoline please help


Are you sure this is a DT 125 as with this particular bike it is self mixing there should be a separate tank by the handle bars just under the front plastics opposite the water tank this is where you fill it with oil then just put gas in the gas tank and it will mix it self you do not have to do anything else do not put oil in the gas tank with the gas mixing would usally be dirt bikes or really old bikes only

Mar 12, 2013 | Motorcycles

1 Answer

How do I fill up my dirt bike motorcycle with the quick 2 mix oil/gas mixer


Find out how many gallons your motorcycle tank holds. Do a little research on the manufacturer and model of your dirt bike. Also find out what ratio between oil and gas is required. Then, do a little math, and find out how much oil to add to each tank. Add the oil. Then add the gas. Adding the gas last will help stir up the oil in the tank.

Dec 16, 2011 | 2002 Honda CR 125 R

3 Answers

How much oil do I ideally put into a full gas tank on my 2 stroke Kymco Like 50? can you put too much?


Hi, not familiar with this bike,does it not have a separate oil tank,?, if your machine is pre mix this means you mix the correct amount of oil and fuel together as. Single form of lubrication, this way the oil gets directly to the engine parts, when the fuel,oil,and air mixture enter the engine the spark ignights it and the engine running process is started, the mixture is atomized to a form of mist, to much oil would render the mist to sticky, and seizure may occure from overheating, as would also be the case for to little oil, MY RESEARCH DOES NOT COME UP WITH A 4T 2 STROKE
ONLY A 4 STROKE WHICH OBVOUSLY HAS NO OIL ADDED TO THE PETROL.

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2 Answers

I have a 1984 suzuki rm 125 it has always ran good for me. until recently it just putts and runs for maybe 20 secounds and then stalls. i tried to run start it and it kinda fired up but there was way more...


Are you mixing regular motor oil in the fuel? Doesn't this bike have a reservoir for 2-stroke oil? You must use 2-stroke oil in that reservoir. Buy it online if you can't find it locally.

Aug 22, 2010 | Suzuki RM 125 Motorcycles

2 Answers

Gas and oil mixing, bike will not fire up or run


IT'S TO RICH, MIX YOUR OIL 40 TO 1 TAKE 5 GALLON'S OF GAS AND 16 OZ OF OIL AND MIX IT. THAT THE BEST MIX.

May 04, 2010 | 2001 Suzuki GSX-R 1000

1 Answer

What kind of oil does my 2003 rm 125 need


For the gas tank= 2-stroke motor oil mixed at 32:1 *stock mixing ratio* [that's 32-parts gas to 1-part oil]. **[I personally use a 40:1 mixture for trail riding,..and 50:1 mixture for racing at the local MX track].

Mar 16, 2010 | 2003 Suzuki RM 125

1 Answer

2002 jr 80 will idle but will not rev up


carbs really need to be inspected-a manual is a must-or a similar *** make-if oil n gas mix is rite ratio then ur ok-look at the electrical for any cuts,corrosion or looseness-no wheelies

Sep 09, 2009 | 1978 Suzuki GT 380

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