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Post by Charlie on Nov 19, 2006 10:44:31 GMT -5
I have had my Bali 150 for four days now. I put regular in it. Dawg says the knocking noise I hear is from the low octane BUT I shouldn't put octane booster in as it will mess with carb parts making them goo.
So short of sucking out the fuel, will the knocking hurt the bike during break in (hard break in)? Should I get the crap fuel out and re-tank with premium?
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Post by sussexscooterhead on Nov 19, 2006 11:03:10 GMT -5
I don't know how easy it'd be for you to slip a hose into your tank and siphon out the fuel but I'd recommend doing that. A couple feet of hose from the hardware store is cheap and really, it shouldn't be much trouble for you.
People can debate how harmful the knock will be over the short term but unless getting that gasoline out is going to be a massive pain why put the engine through that? Even if no damage was being done I'd hate to listen to it for the next 50 miles.
Go for it, Charlie. I think you'll be happier in the end.
Oh, and I like your avatar! LOL
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Post by ooopseyesharted on Nov 19, 2006 11:59:10 GMT -5
Hey charlie. If you have regular unleaded in there now, Just get to the gas station and top it off with super unleaded. The 2 fuels will mix and helpful the knocking will go away.
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Post by medman1952 on Nov 19, 2006 12:22:16 GMT -5
you could mix with a higher octane and hope it will go away, especially if you have less than half a tankful.
If the tank is pretty full I'd just get a few feet of CLEAR hose and siphon it out, clear because you can see the gas coming and not get a mouthful of it. There is a technique to doing it and if you have never done it let us know I'm sure that several people here have done it a few times.
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Post by Dennis D on Nov 19, 2006 14:24:31 GMT -5
Or you could use a hand pump siphon made for filling kerosene heaters that have the tanks on the floor.
Actually I just filled mine with 87 octane accidentally, but it's only 2/3 87 octane, and since we're into cold temps here(sub 50s), I don't expect any problems. I've also gotten the bike tuned as I expect it to stay for awhile, so won't be doing any testing or hard riding(esp. in the cold). I'd be siphoning it right out if ambient temps were warmer though.
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Post by Admin on Nov 19, 2006 15:23:26 GMT -5
One tank of regular isn't going to hurt it. Just top it off with premium and continue to use premium. If the knocking doesn't go away after you've burned off the regular, we've got a different problem.
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Post by ooopseyesharted on Nov 19, 2006 19:44:58 GMT -5
I was right!!! Sweet!!!......LOL
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Post by Dennis D on Nov 19, 2006 19:59:03 GMT -5
I'd go a little easy with the hard breakin til I could put about a half tank of Super in it to raise the octane some, if it were mine.
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Post by Charlie on Nov 19, 2006 20:49:07 GMT -5
I think that I will take good advice and get rid of the old gas. Ummm, if it's not the fuel what else could it be? Timing problems?
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Post by Admin on Nov 20, 2006 0:42:59 GMT -5
Obviously, I get no respect around here. As it should be.
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Post by Aaron on Nov 20, 2006 1:12:32 GMT -5
Lee wanna borrow the Staff reserved smiley?  Aaron |
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Post by Charlie on Nov 20, 2006 9:39:14 GMT -5
Ok, the fuel change DIDN'T stop the pinging, rattling sound?  WTF is this? It sounds like a non-metronomic sound, meaning it always sounds the same but it isn't a "paced" sound. It does sound like pinging as it is a deep growly knock. The scoot sounds wonderful and is performance is better than I expected but when you tromp on it the "ping" (or whatever it is) continues until you even your speed. Thoughts? |
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Post by sussexscooterhead on Nov 20, 2006 9:50:42 GMT -5
Without hearing it we'll be hard pressed to tell you right off the bat but I'm sure you'll get a lot of suggestions. Like this one:
Could it be an exhaust leak at the head? Loose exhaust bolt perhaps or an exhaust gasket that is not positioned properly?
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Post by Charlie on Nov 20, 2006 9:54:19 GMT -5
Oh, BTW what is the Karma thingy?
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Post by mgreenfield on Nov 20, 2006 12:09:31 GMT -5
Gee, ....I burn nothing but 87octane fuel, with no knocking or any other probs.
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Post by cathouse on Nov 20, 2006 14:56:12 GMT -5
Oh, BTW what is the Karma thingy? when you get 10,000 karma points you win a trip to Disneyland, you get points for being a good boy and minding your momma. oh, and kissing the dawg butt won't get you a thing.. |
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Post by cathouse on Nov 20, 2006 14:59:48 GMT -5
I just gave you a karma point for asking the question, i'm sure a lot of folks wanted to ask that but just didn't.
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Post by Admin on Nov 20, 2006 15:08:48 GMT -5
If it makes this noise while idling, put it on the center stand and see if you can pinpoint where it is coming from. Previous suggestiong of loose bolts is good.
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Post by lee82 on Nov 20, 2006 16:55:55 GMT -5
Charlie, Autoparts stores sell stethoscopes to help pinpoint the source of engine noise.
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Post by Charlie on Nov 20, 2006 16:57:33 GMT -5
One whole Karma point! Woooo hoooo...thanks.
DAWG I put the scoot on the center stand to change the oil and gear lube. After I finished I checked for the noise. on the center stand..NADA..!
I then took it for a leak shake down cruise and the noise was still there. Yesterday I emptied the tank.. phew, spit yuk! by sciphon and refilled with premium. Still had the noise. I put about an ounce of octane booster ...still had the noise. I think I read somewhere that somebody had a tube from the exhaust system near the carb that was causing the ping from rebreathing some kinda vapor?
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Post by Charlie on Nov 20, 2006 17:01:34 GMT -5
Lee78, It would be hard to check with a stethascope as I have to be under load when the sound occurs. I don't have access to a dyno, so I might have a problem leaning over and checking at speed!
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Post by ddillon on Nov 20, 2006 17:18:39 GMT -5
Gee, ....I burn nothing but 87octane fuel, with no knocking or any other probs. Same here. |
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Post by WarrenS on Nov 20, 2006 18:18:15 GMT -5
I just read a way to start a siphon without getting a mouthful of gas. You put the tube from the tank to where you want it to go. Then you put a second tube to blow in. You seal it off with a rag and blow. The air pressure causes the fuel to go up the other tube. It sounds like it should work but I haven't tried it yet.  |
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Post by Charlie on Nov 20, 2006 19:22:15 GMT -5
I will remember that next time I put the wrong gas in!!! lol hopefully that'l be in my next lifetime.
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Post by lewtwo on Nov 20, 2006 23:48:01 GMT -5
>> I just read a way to start a siphon without getting a mouthful of gas. <<
Just stick a long enough hose all the way in the tank. Seal the end with your thumb and draw it out. Remove your thumb and fill your gas can.
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Post by sugarbear on Feb 13, 2007 23:09:56 GMT -5
So you put the wrong fuel in the tank-Not enough octain-Here's the truth about not enough octain.What it can do is burn or scorch your valves.Heres what you do.Go to a Hardware store or a autoparts store and buy a bottle/can of Lead for fuel.It should'nt cost over a few bucks.You put just a table spoon of it to every gallonand half of gas.That will fix your problem.
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Post by bev on Feb 14, 2007 1:59:15 GMT -5
I know someone that put diesel into a scooter! Needless to say, there was a lot of smoke and the tank had to be drained, carb cleaned etc etc I use a product called Sea Foam, its a stabilizer that works really well. My tiller had 4 year old gas in it, I added sea foam, shook it and about 2 minutes later I started it on the second pull. It helps if there is water in the gas etc etc...its an amazing product. see: www.seafoamsales.com/motorTuneUpTechGasSmall.htmSEA FOAM MOTOR TREATMENT for Small Engine Applications Small Engine Applications Works and Performs Instantly * Stabilizes fuel * Cleans carburetor * Cleans carbon * Removes moisture * Assures fast starts * Frees sticky rings * Restores power * Upper cylinder lube * Smooths rough idle |
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Post by lairnbear50 on Oct 19, 2007 22:18:14 GMT -5
That SeaFoam is some good stuff.I put that in with regular gas in my outboard motor.Also
sugarbear is right on buying gas lead.That will help your engine.I remember useing that stuff
in canada on motor bikes.
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Post by swampsniper on Oct 20, 2007 2:58:34 GMT -5
Someone ran a test a long time ago and found out that if you dumped half a tank of high octane on top of half a tank of cheap, low octane gas, what you ended up with was gas with better resistance to preignition than the high octane gas had in the first place,
Octane is all about preventing the fuel from igniting before the sparkplug fires.
Consider this, there are Diesel engines all over the world that run just fine, with no sparkplug, at all.
When you take a chunk of air, put it into a confined space, and compress it, real fast, into a smaller space, the temperature goes up! You haven't created any heat, what has happened is that you have taken the ambient heat, that already existed in the air, and concentrated it.
Diesel engines have compression ratios much higher than gasoline engines, they use fuel that is harder to ignite, and run, without a sparkplug. Gasoline is easy to ignite. easier than Diesel is. High test gasoline has additives that raise the temperature where the gasoline will ignite, due to the Diesel effect.
I used to rebuild a few Evinrude or Johnson outboard motors every month. The old timers around here would dump an 8 ounce Coke bottle of cheap oil into every gallon of the cheapest gas they could find. What they really did was drastically lower the octane rating, the outboard would "Diesel", fire from compression, preignite, whatever you want to call it. The result was pistons with holes, and rod bearings that had been hammered hard enough to leave dents in the rod journals. The excess oil just lowered the octane rating too far.
If your GY6 has preignition problems don't blame USA gasoline.
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Post by funderp47 on Oct 20, 2007 6:04:13 GMT -5
Gee, ....I burn nothing but 87octane fuel, with no knocking or any other probs. Same here. Likewise. |
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