Marvel Mystery Oil in 2 stroke O/B?

[robert graham]

Anyone with experience using Marvel Mystery Oil in 2 stroke Yamaha outboards as a carbon reducer/remover?....

[TownsendsFJR1300]

Do it Robert!!!!!!!!!!

[99yam40]

Anyone with experience using Marvel Mystery Oil in 2 stroke Yamaha outboards as a carbon reducer/remover?....

Does the label say it is meant for that type of application?
If not why not use something that does

[robert graham]

Does the label say it is meant for that type of application?
If not why not use something that does

The Ringfree is $57/quart....just considering something more affordable....

[TownsendsFJR1300]

The Ringfree is $57/quart....just considering something more affordable....

Robert, it does mix down to 1 oz per 10 gallons so your talking 320 gallons treated.

Anyway, if you want a smaller bottle, here's one much cheaper (and smaller):

Amazon.com: Yamaha Yamalube Ring Free Plus Fuel Additive ACC-RNGFR-PL-12: Automotive

[Nautical]

I know MMO works great in a four stroke auto engine. Great penetrant and will loosen and soften hard ass carbon .What you could try is to take out all the plugs then liberally squirt the upper cylinder if you can splash it around then let it sit and next day blow it out .Reinstall plugs ..Follow up with a seafoam treatment and you are good to go.

[DennisG01]

Nothing against anyone (or any product, for that matter, as I've never used MMO), but why try and reinvent the wheel if there's already a product out there that does the job and is dirt cheap? I've used the Merc brand (probably pretty much the same thing as the Yamaha stuff) of that de-carb stuff mentioned above a few times in various engines. I've been happy with the results.

I've been guilty of this, as well... sometimes we spend hours "researching" on this interweb thingy looking for an answer, when the answer was right in front of us all the time.

[TownsendsFJR1300]

Interesting about the MMO, thanks for the info!!!