How to wake up a dog!

[liferider]

2 days before I left for Sturgis I went to the local commercial fuel company with 4-5gal fuel cans and purchased 100 octaine REGULAR aviation fuel. What I would do is top off either the 1996 HD Ultra Classic or the Big Dog with this stuff. Keep up with my millage and how far to get back to where we were staying and top off just enough with 93 octane super unleaded 10% ethanol so that when I got back I only had 1/2 - 1 gal of fuel in the gas tank. But WOW! No knocking farting or popping while burning this stuff! Yes it does cost $4.55 per gal. But these motors LOVE it!!!!! My riding buddy wanted to try it. I told him hell no. He was on a 2011 HD Heritage and it would screw thos 0/2 sensors up so bad he would be towing the bike back. I had about 2 gal left when I got back to Louisiana so I topped off my lawn mower. Shit, it likes it too! :2thumbs:

 

[Thors]

Nice! I can get 104 and 110 locally but it's more like $20/gallon. Not worth it for me. Is the 100 octane leaded?

 

[liferider]

Nice! I can get 104 and 110 locally but it's more like $20/gallon. Not worth it for me. Is the 100 octane leaded?

YES, av gas has to be leaded fuel. That's why it will screw up bikes with O/2 sencers.:2thumbs:

 

[BFB]

Love the stuff. My buddy and I split 55 gallon at a time from the local airport. Paying closer to $5.60/gal here in PA. Run it 100% in tank when cruising around home. What a difference maker and I cant explain the smell from the exhaust, but everybody notices it. Smells like horsepower.

 

[XTREEME]

I was curious about the Leaded Gas option myself. We have a few Clarks stations around that sell the high octane leaded racing fuel, but wasn't sure if it was strictly a tree hugger (O2 sensor) issue in today's engines, or if there was any real negative impact on our old school S&S motors.

I was recently out on a long ride and forced to stop at the only gas station around, which happened to be a Holiday with only 91 octane and the dreaded "over ethanol'd" mix. My motor did not like that at all. I would like to treat it now with some good stuff, but not sure about the 'leaded' question.

So, it sounds here like if its good for old school race engines, it should be good for our high compression S&S motors as well then?

 

[liferider]

I was curious about the Leaded Gas option myself. We have a few Clarks stations around that sell the high octane leaded racing fuel, but wasn't sure if it was strictly a tree hugger (O2 sensor) issue in today's engines, or if there was any real negative impact on our old school S&S motors.

I was recently out on a long ride and forced to stop at the only gas station around, which happened to be a Holiday with only 91 octane and the dreaded "over ethanol'd" mix. My motor did not like that at all. I would like to treat it now with some good stuff, but not sure about the 'leaded' question.

So, it sounds here like if its good for old school race engines, it should be good for our high compression S&S motors as well then?

Bikes before 2007 do not have the O/2 sensors in them. Also some of the newer motorcycles are now equipped with a cataletic converter in the exhaust pipes.Regular fuel will destroy the cataletic converter. And yes my 2003 107 S&S motor loves this stuff. Also, go to J&P Cycle webb site. Buy a container of Rocket Fuel. I always keep 5-6 in my Tee-Bag. Also get Lucus Ethanol treatment. Add the Rocket fuel in your tank 1 pouch makes 5 gallons of fuel, then add the Lucus treatment, then add the fuel. Adding the fuel last tends to help mix everything up better. This will help big time when you get caught out on the road and you have to pick up fuel from where ever. You will notice the differance substantually! No knocking, popping or engine farting :up:

 

[HMAN]

Local AVGAS prices:

AirNav: Local Fuel Prices

 

[scubaman15]

There has been lots of posts on this..... this was the posted by me a long time ago and there were many responses ..Lucas was a favorite..still is but there is one thing all agreed on that the fuel we get these days is Crap. Yea I know I haven't been around much...and to be really honest I don't get out much on the chopper or as much as I would like to but still find my way back hear now and then!

 

[Breeze]

I agree on waking up the dog(03 chopper) I use 100 octane in mine or ethanol free..No knock,ping and people do comment on the exhaust.

 

[STROKER]

ive been using AVGAS for 2-3 yrs. the DOG loves it!! the only thing is the AVGAS has lead in it, and after 6-7 hundred miles the plugs start to foul from the 'lead' build-up. so i carry extra plugs,then when i go to work i 'BEAD-BLAST' them...just like new!!...just dont want to run AVGAS in anything that has sensors, or a catalytic converter. also run it in my riding mower and weed whacker...:2thumbs:

 

[PROFLYER]

Guys get 100LL (low lead) not reg 100 and you'll be fine. The LL has just a bit of lead in it and no ethanol or any other additives. Its also called "blue gas" if you fly

 

[BBChopper]

91, 93 what ever they have no issues no knocking just balls out!:2thumbs:

 

[9secondsflat]

You don't have the compression (if yours is stock) to benefit from the higher octane...I also don't believe that our bikes have a knock sensor which would pull timing as a result of detonation, which would reducing horsepower/tq when using regular gas...

I have seen first hand dozens of times guys use gt110 unleaded in cars and bikes at the drag strip over the years and loose 2-3 mph in their trap speed which means they are making less horsepower...

 

[pknowles]

You don't have the compression (if yours is stock) to benefit from the higher octane...I also don't believe that our bikes have a knock sensor which would pull timing as a result of detonation, which would reducing horsepower/tq when using regular gas...

I have seen first hand dozens of times guys use gt110 unleaded in cars and bikes at the drag strip over the years and loose 2-3 mph in their trap speed which means they are making less horsepower...

Higher octane equals less hp? Help me out here.

 

[Chippy Chad]

I run super because some companies don't put ethanol in their premium, unless you have done some motor work and bumped your compression you are wasting your money with anything over 93 octane. I agree with 9secondsflat, I used to race snowmobiles and have seen sleds slow down with avgas.

 

[BFB]

Like Proflyer said, get the Blue, no issues with the plugs so far. And 9, I agree in most cases but for what ever reason, there is a noticeable improvement in performance when I run the AV in the Mutt. Will be interesting to check the difference in gas once I get the heads & cam done next year.

 

[liferider]

You don't have the compression (if yours is stock) to benefit from the higher octane...I also don't believe that our bikes have a knock sensor which would pull timing as a result of detonation, which would reducing horsepower/tq when using regular gas...

I have seen first hand dozens of times guys use gt110 unleaded in cars and bikes at the drag strip over the years and loose 2-3 mph in their trap speed which means they are making less horsepower...

Are you talking 110 octane? AV 100 is regular gas 100 octane. Not Unleaded fuel but fuel with Lead in it. And yes at Sturgis last year I picked up unleaded fuel 85 Octaine 14% ethanol to get back due to that is all the station in Hulett had and my 107 S&S motor knocked and backfired all the way back to Spearfish where we were staying. I drained the tank and filled it with AV100 and by the time I got back to I-90 motor stopped backfiring, spitting & knocking. Not saying your wrong. Just that I know from my experience what my bike likes and does not like. Usually I run 2 tanks of super unleaded between 5-6 tanks of Reg to get rid of the lead deposits on the head and spark plugs. And yes AV 100 does contain lead and will leave lead deposits in cylinder heads if not burned out with Super unleaded fuel once in a while

 

[reloaderbmg]

Sunoco has 103 oct at the pumps in my area . dam stuff runs "smooooth"
and yes you can smell the exhast,