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post #1 of 38 (permalink) Old 04-05-2012, 02:06 PM Thread Starter
Kufbass
 
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Gas!!!!

On some threads I have seen people say only run 87 octane. They say that the VN750 was designed for 87 octane. I wonder if these people take into acount that there is ethanol in todays gas. I always have used 93 octane in my motorcycles. I used to use 94 octane when Sonoco still had it. Ever since getting my Vulcan I used Sonoco 93 octane. Then one day there was no Sonoco in site,so I tried V power from Shell. WOW It was like my bike had a extra cylinder added. It was amazing how this gas was. Plus it has added nitrogen cleaners. So it has to be keeping the motor and carbs clean. If you had not tried this gas,give it a shot. Like I said,I don't think the bikes were designed for ethanol in the gas. That is why I use the high octane to make up for the ethanol percentage. V twin motor needs V power gas.


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post #2 of 38 (permalink) Old 04-05-2012, 02:51 PM
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Uhh.... I don't think the expensive stuff is needed in these bikes unless you lug them a lot,Octane needs to be whatever the bike will run on without detonation.

Higher octane is actually less volatile than regular,The old guys talked about "blowing the soot out of one" and it is actually true these bikes need to go into the upper end of the recommended end of the Rpm range now and then to get rid of carbon deposits caused by incomplete combustion.

I am not saying redline it before you shift every time,but about once a tankful air it out a little .Your engine will thank you for it,and so will your wallet when you buy regular.I like Shell gasoline too,but I'm buying regular.

If it is not "pinging " the octane is high enough,after all they are only a little better than 10 to 1 Compression ratio engines.




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post #3 of 38 (permalink) Old 04-05-2012, 02:52 PM
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Shell is good gas, mine likes it. Run BP most of the time since that's the station close to me.
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post #4 of 38 (permalink) Old 04-05-2012, 03:25 PM
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[QUOTE=denny6006;203682]Higher octane is actually less volatile than regular,The old guys talked about "blowing the soot out of one" and it is actually true these bikes need to go into the upper end of the recommended end of the Rpm range now and then to get rid of carbon deposits caused by incomplete combustion.

When you say air it out, how many RPM's are you talking??



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post #5 of 38 (permalink) Old 04-05-2012, 03:38 PM
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[QUOTE=peterherrm;203684]
Quote:
Originally Posted by denny6006 View Post
Higher octane is actually less volatile than regular,The old guys talked about "blowing the soot out of one" and it is actually true these bikes need to go into the upper end of the recommended end of the Rpm range now and then to get rid of carbon deposits caused by incomplete combustion.

When you say air it out, how many RPM's are you talking??
in the upper third of the rev scale,should do ,although I frequently shifted mine at or near redline ,I don't have to worry about it on this 1500 it will bump the rev limiter and that's it, but that is enough,

If you haven't cranked yours out to 5 to 6 k, it will surprise you when you shift,the 750's are pretty quick.




If you see it on my bike I did it
VROC#30324
92 vn750(sold)
Current ride 05 1500 Classic FI
lovin' the new scoot



Quote:
"When all is said and done,usually more is said than done" UNK
Click on one x and drag to the other to read between them.

Psalm 40:1...
XI waited patiently for the Lord; and he turned unto me, and heard my cry. X
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post #6 of 38 (permalink) Old 04-05-2012, 03:46 PM
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Your thinking is horribly flawed. Yes they did not design the bike to run on ethonal gas, they designed it to run on "regular" fuel , 85-87 octane.

10% ethanol regular gas is still rated at 87 octane. Don't matter what they put in it...87 octane is all that matters.


If the bike was running a 13:1 compression ratio higher octane gas would be acceptable... To even necessary.

If your bike seems to run better on a fuel that is by definition harder to ignite....something's wrong with your bike.

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post #7 of 38 (permalink) Old 04-05-2012, 03:48 PM
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8500-10,500 for me. I have mercy for the valves so I don't take it to 11,000. LOL The bike does like being beat up from time to time. Be careful and have good tires.

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post #8 of 38 (permalink) Old 04-05-2012, 03:48 PM
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I ride the highway to and from work so am usually around 5k.....so mine should be relatively "clean". But I have to say that when I get a stretch of open road and can get the RPM's above that....I just LOVE how the sound of the engine completely changes and humms nicely with a nice rich tone.
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post #9 of 38 (permalink) Old 04-05-2012, 03:54 PM
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Correct me if I am wrong, but isn't ethanol an octane enhancer and therefore in 93 more than likely?
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post #10 of 38 (permalink) Old 04-05-2012, 04:11 PM
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I was in the kawi dealer the otherday, there was a pamphlet on the damage that ethanol causes. They sold this blue fuel additive, that you mix at 1oz per 3 gallons of gas. It supposedly fixes all ethanol problems.

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