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Honda MX & Off-Road Dirt Bikes
Do all 2 strokes somewhat splooge?
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[QUOTE="jsantapau, post: 1380278, member: 99193"] If you read carefully the posts of the threads that Rich Rohrich posted I beleive you would find a suitable answer. "Some oils really interfere with combustion and some don't . When you can see a big change in jetting from playing with oil ratios it's a pretty good sign that the oil is interfering with normal combustion."-Rich Rohrich Although I am sure there are plenty of other things in the makeup of the oil that can play with the flame front I would beleive flash point of the oil and gas you choose would affect it "Personally, a little spooge seems like a good thing to me. .. means the oils aren't breaking down completely on the top side of the piston, allowing them to lubricate the cylinder wall more efficiently. ... also a definite sign that the cylinder is not running too hot" well here is my take of having a little knowledge being a dangerous thing, and also going to a far extreme to prove a point.. if you are running a gasoline that is not being completly burned you will have some spooge even if you do not have enough oil. a strange example might be a 125 running a lousy pump gas that was poured out of a diesel container being mixed at 100/1 that is jetted too rich. the make up of the fuel not being able to burn completey, being to rich multiplying the problem wil give you spooge but will the 100/1 ratio protect the internals? also the way I envision things would be that there are no redeeming qualities of lubrication at the area and time of combustion. the piston is traveling away with the piston skirt and ring scraping the oil off the cylinder wall below the fact and anything above is after the fact, now after exhaust blowdown and the transfers open you will have a fresh charge setting on top for the compression cycle. That is magic ticket that tuners are looking for enough oil to do the job but not too much to affect combustion , jetted lean enough to be crisp but not too lean to sieze. which realistically if you are looking for that type of competetive edge from a 125 or 250 you probably should be on a 250f or 450f. [/QUOTE]
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Honda MX & Off-Road Dirt Bikes
Do all 2 strokes somewhat splooge?
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