mixing oil with petrol

-Ali- · Trackday Trickster Joined: 22 Feb 2005 Karma :

ok. i have a yamaha ty250 about an n reg anyways its needs oil mixing with the petrol everytime you fill it up, is there any way to convert it?

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

If you can find an appropriate carb from a bike that has a seperate tank you might be able to do it. I know some bikes use pumps for the 2 stroke, so you'd have to be aware of that as well.

-Ali- · Trackday Trickster Joined: 22 Feb 2005 Karma :

do you reckon if i email yahama then they'll be able to help me out.

mr jamez · World Chat Champion Joined: 04 Aug 2003 Karma :

Yeah, you could get a carb or intake manifold with an oil feed, but the hard part is pumping the oil. You are going to need to drive the oil pump from the engine, on bikes with this already in place the pump is built into the crankcase. Then you will need to get a cable from the throttle assembly to operate the pump. Unless there is some way to do this without the use of a pump?

Sounds like a lot of hard work, no idea if it is even possible (within reason). At least with premix you don't have to worry about the pump failing Smile

-Ali- · Trackday Trickster Joined: 22 Feb 2005 Karma :

failing that i could just tape a small bottle of oil to the mud guard. probably going to go and ride it tomorrow so i'll have a look

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

I doubt it, I've tried calling manufacurers about such things and they will just pass you onto a garage that won't have a clue.

You need to find someone that knows about these bikes, or at least know what sort of carbs should be compatible.

-Ali- · Trackday Trickster Joined: 22 Feb 2005 Karma :

to be honest i can't be arsed with that its just that i could maybe swap it for my 50 zip with my dad as he wants a scooter

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

I prefer pre-mix 2-strokes anyway. You know that the bike has the right amount of oil in there and don't need to worry about the pump seizing, an oil-line blocking or the oil tank running out without you noticing.

I used to keep a small bottle with enough oil for say four litres (80ml of oil if you are running at 50:1) under the saddle for emergencies. I have seen people fit a bicycle water bottle holder to the bike and keep a thing of 2-stroke in it.
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I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.