Hey guys thanks for answering my question!

I was wondering;


1. If there is anything thing that needs to be modified in my 86 Sport to run Pre-Mix

hmm.. i guess thats my only question.

Thanks!

 

you can run premix without doing any modification of you wish

i personaly replace all oil injectors with bolts and made a block off plate for the meetering pump.. if you don't want to remove the manifold it would be quite hard to do this procedure though.

 

No mods needed. I ussualy run premix in my fuel every other fill up or so. Not to thread jack, but anyone found any mixes that work any better than another, or is cheaper? Ive been using Lucas 2-Cycle Racing, seems to get the job done just fine, for a chunk of change though

 

the only point of running premix is if your oil injection is no longer working for one reason or another and you dont want to spend the money to fix it.

 

good old walmart 2 cycle outboard engine motor oil is as inexpensive as ive found

 

i just run the wal mart brand oil when driving on the street, i run redline synthetics when i run at the track. the internals were still perfectly clean after 28k miles with the wal mart 2 cycle oil.

 

oh and i guess the second question is;

2.) Is it wise to run Pre-Mix without any modifications?

Oh and i guess

3.) Is there any point to run Pre-Mix without modifications?

 

Main reason i run premix every other fill up is because im not sure my oil metering pump is working correctly and i have a few oil leaks some im not sure where the oil is going, so just to be safe i run premix. doesnt hurt anything but the wallet

 

not nessesarily, the 2 cycle oil burns cleaner, lubricates better and leaves little to no carbon build up on the rotor faces. you also go through less oil between changes

 

2.)Nothing wrong with it as far as I know
3.)No point other than extra lube for the seals and a safety net for your internal lubrication.

I just use it because I can

 

oh and last question;

4.) what ratio should i use when using Pre-Mix without modification?

 

3) Reassurance would be the main reason... as FCking put

 

engine oil is not made to be burned inside a combustion chamber is it? and from what i understand 2 cycle oil is designed to burn inside one and it burns clean without any residue left over.


at 98 cents a pop for walmart oil its a good buy! i buy about 10 at a time and it lasts me a hella of a long time.

 

i use 100:1 but im not running the metering system on top of that, ill take a wild estimade and say 50:1 anyone like to disagree feel free

 

Not sure if there is a science to it. i ussualy use a full bottle per full tank of gas. Which the bottles I use are pretty large, so im probably using much more than is called for or needed, but i havent seen any issues yet. Id GUESS that a good ratio would be probably 1oz of premix per 2-3 gallons of fuel... again, i dont think it matters too much though, just keep the ratio within reasonable limits and youll be fine. By reasonable i mean DONT put a gallon of premix in 4 gallons of fuel...

So whats that, 32:1 to 48:1... Anywhere from 30:1 to probably 100:1 is fine

 

rotorman85 you know they also have it in the larg jugs too... 5 quarts i think it is maybe 4 I don't remember.. it's even cheeper this way i've found

 

200:1 if you have a functional OMP system, 100-124:1 if you have no OMP.

 

100:1

 

karack lol 1 too many zeros?? why 200:1?

 

damn not at my walmart,but they do have the pre measuring bottle which is kinda usefull.

 

Now I have a question. Anyone ever seen or read anything about what premix does to octane ratings? Id imagine it would bring them down a point or 2, which in an n/a situation I think would be good. Dont n/a rotaries call for lower octane ratings and stock boosted to high mod boosted call for medium at least, and then higher the better like most engines?

 

idk why but 32:1 pops into mind.

 

lol 87 octainers


yeah NA run best on 87 there was a big thread about this some time ago.

 

Damn, you sure about that. thats 1oz premix to 12.5 gallons of fuel... thats like a thimble full in a 3 buckets of fuel... if so, im screwed, ive been running almost a 16:1 ratio on my fb

 

you are correct about the other stuff. but the premix added at arround 100:1 would not affect it enough to wory, you would have to have much much more.