Older engine

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jstcraig
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Older engine

Post by jstcraig »

What’s the best idea when running an older engine on pre mix for the first time, I’m leaning to wetter than drier so maybe 30:1 thoughts [emoji848]


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jhogg7575
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Re: Older engine

Post by jhogg7575 »

The standerd runs 32/1

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Older engine

Post by SS109 »

More oil will help with ring seal but you need to properly jet for whatever ratio you're running.
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Re: Older engine

Post by jstcraig »

The old chestnut lol,is there a chart anywhere that I can use to compare


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Re: Older engine

Post by bufftester »

If your crankseals are fine and there's no coolant in your oil, or crzy slop in the crank, run whatever ratio you are going to use and jet to that. 32:1 is OEM, most folks go 40:1, even seen some guys swear by 50:1, just search on here for oil wars, they are plentiful lol. Pick one, jet to it, and stick with it. I assume this means the oil pump was a non-starter?
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Re: Older engine

Post by KDXGarage »

Have you done away with the oil injection?
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Re: Older engine

Post by jstcraig »

The Oil pump has a check valve in the brass fitting housed in the inlet manifold and mine is by-passing, so as the engine cycles the oil only gets so far before it gets stopped in the pipe.
I have ordered on from Japan but want to start the bike.


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Re: Older engine

Post by KDXGarage »

OK, cool.

I would just do 32:1 or 40:1, somewhere around there. Don't put extra oil.
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Re: Older engine

Post by jstcraig »

Jason wrote:OK, cool.

I would just do 32:1 or 40:1, somewhere around there. Don't put extra oil.
Ok I was contemplating a first start at 30:1 but will do 32:1


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Re: Older engine

Post by KDXGarage »

Any luck yet on the plastic E fuel tank?
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Re: Older engine

Post by jstcraig »

Jason wrote:Any luck yet on the plastic E fuel tank?
Have put that search on hold,the old tank seal seams to be working. Once I get the bike rally long weekend out of the way I would like to do a full resto. I will have to figure out the best location for the oil tank to fit a plastic tank.


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