Pocketrocket
New member
Ok i just got my mini bike started and rode it for about 30 mins and it started to slow down and loose power.....and smoke was coming from the engine iam running a 50:1 ratio on a apc mini bike anyhelp
Smoking please help :censored:
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based only on what you say here and what i know about those engines, my advice would be to raise the oil ratio to 25:1 immediately...and hope like heck it's not too late.
if it's fried, and you're interested, i found this with a quick search, pretty good price: http://cgi.ebay.com/ebaymotors/49cc...rcycles_Parts_Accessories&hash=item336b34bad5
if it's fried, and you're interested, i found this with a quick search, pretty good price: http://cgi.ebay.com/ebaymotors/49cc...rcycles_Parts_Accessories&hash=item336b34bad5
Russ2251
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Official break in mix (first tank) is 28:1.
After that, 32:1 for life of engine.
After that, 32:1 for life of engine.
Pocketrocket
New member
Ok isnt 50:1 a higher mix?
Russ2251
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Higher as in leaner? Yes.
Your engine is designed to run at 32:1 which is richer than 50:1.
The hotter a 2 cycle engine runs, the more oil it needs.
32:1 is 4oz./gal.
50:1 is 2.6oz./gal.
4oz. > 2.6oz./gal.
Your engine is designed to run at 32:1 which is richer than 50:1.
The hotter a 2 cycle engine runs, the more oil it needs.
32:1 is 4oz./gal.
50:1 is 2.6oz./gal.
4oz. > 2.6oz./gal.
in simpler terms, you want more oil in your mix. you've been using 50 parts gas to 1 part oil, or 50:1. i'm suggesting you "raise" it to 2 parts oil, or 50:2, or 25:1.
i've tore up a few scooter 43's & 49's on my bikes, they're cheap & fun to abuse, but they have many weak points. if you start with a new one, and use a GOOD oil (i recommend Lucas) you can get a decent lifespan with a 32:1 mix. but that old beater needs lotsa oil if it's gonna keep running for you, especially after scraping along for 1/2 hour with hardly any. just my opinion is all, hope it works out for you.
yaknow, i had meant to ask, is the smoke coming off the engine (which is how i interpreted it, as being overheated) or from the exhaust? i ask because, altho you do need to increase the oil, you may also have a carburetor adjustment to make.
i've tore up a few scooter 43's & 49's on my bikes, they're cheap & fun to abuse, but they have many weak points. if you start with a new one, and use a GOOD oil (i recommend Lucas) you can get a decent lifespan with a 32:1 mix. but that old beater needs lotsa oil if it's gonna keep running for you, especially after scraping along for 1/2 hour with hardly any. just my opinion is all, hope it works out for you.
yaknow, i had meant to ask, is the smoke coming off the engine (which is how i interpreted it, as being overheated) or from the exhaust? i ask because, altho you do need to increase the oil, you may also have a carburetor adjustment to make.
Pocketrocket
New member
It was coming from the engine not the exhaust, there was grass under the cover so i think it could have goten really hot because of the low oil and burned the grass
Pocketrocket
New member
And i put for my last mix 100 mills to 2 liters is this correct for my ratio ?
So my next time i'll put 200 to 2 liters?
So my next time i'll put 200 to 2 liters?
how many mill in a liter? 1000? so you used 100 mills to 2000 mills? my math says that's 20:1 and that's pretty fat. 70-75 mill to 2 liters should be good. so oil's not the problem, maybe, except i'm guessing the spark plug needs looking at by now. with luck, the problem's only a gooey spark plug.
but the carb could be set too lean. this is just rough here, but it'll be right for starters...screw the mixture screw in, then back out 1 3/4 turns, plus a tiny-smidge more. (count how many turns it took to screw it in, that'll be a good clue)
anyways, that's all i can think of doing "long distance"...let us know how it goes.
but the carb could be set too lean. this is just rough here, but it'll be right for starters...screw the mixture screw in, then back out 1 3/4 turns, plus a tiny-smidge more. (count how many turns it took to screw it in, that'll be a good clue)
anyways, that's all i can think of doing "long distance"...let us know how it goes.
Pocketrocket
New member
Yeah with luck it would be the spark plug but it wasnt.... it was a clean.. no oil what so ever
Iam sooo stuffed and now it wont start..... i pulled the start and this burnt stuff started coming outta the engine.... not the exhaust
Iam sooo stuffed and now it wont start..... i pulled the start and this burnt stuff started coming outta the engine.... not the exhaust
speedshopmike
New member
APC specs a 20:1 mix ratio for their pocket chops, according to the sticker on my turd's gas tank cover.
i run it at 40:1 with synthetic and it's living happily so far and it's WOT full time when i ride.
i run it at 40:1 with synthetic and it's living happily so far and it's WOT full time when i ride.
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