2 stroke oil content

[glasply1]

Does anyone manufacture a device to measure the oil content in the fuel tank for a two stroke?

 

[cobra 3.0]

Re: 2 stroke oil content

When in doubt add more. Even if its double what it's supposed to be, it's better than not enough. During engine breakins, 25:1 is required for the first 10 hours or so...so it can't be that bad once in a while if you have more than the 50:1

 

[glasply1]

Re: 2 stroke oil content

Good point. If I erred and added the oil twice for a 50:1 ratio it shouldn't be harmful, as the post break-in ratio is 100:1. Thanks for the comment.

 

[tashasdaddy]

Re: 2 stroke oil content

they change that 100:1 back to 50/1, quite a few years ago. they were not getting enough lube.

 

[Dave Abrahamson]

Re: 2 stroke oil content

Yup, they had enough lube to run....just not enough to sit for any length of time without rusting up, I think I've read that here somewhere...I get lost reading all these posts

 

[glasply1]

Re: 2 stroke oil content

You make a good point regarding the protection of an engine that sits for awhile, especially one hanging off a braket over salt water. Even though the manual for this 1999 Yamaha says to use 100:1, I'm going to start using the 50:1 ratio to increase the protection of the interior of the engine. Thanks for your comments, especially since I don't really want any sizable repair bills or replacement of the engine.

 

[glasply1]

Re: 2 stroke oil content

At what oil ratio will my '99 Yamaha 15hp 2 stroke (mentioned above) have problems starting or idling considering that it has a recommended ratio of 100:1? Will 50:1 or 25:1 cause an increase in sparkplug fouling and should I use a different plug?

 

[Chris1956]

Re: 2 stroke oil content

Glasply 1, I once saw a device which proported to be able to measure the amount of oil in a premix, using viscosity. It was basically a funnel with a precisely sized hole. The procedure was to fill the funnel, and time how long it took to run out. A time chart provided the mixture ratio.

 

[cobra 3.0]

Re: 2 stroke oil content

No. Same plug. Just check it more often if you wish, but 5 gallons goes fast. You'd have to run a whole season to see any difference in plug fouling.

 

[glasply1]

Re: 2 stroke oil content

Thanks for all the tips. I'm going to add the cleaner to the engine and spray the carburetor. Hopefully that will do it.