Some of the guys have been telling me to use marvel mystery oil added to my gas. Anyone have any thoughts on this. They claim all kinds of benefits.

MMO, Ring Free, Sea Foam, Lucas all are upper end lub and cleaners. I've tried them all. I use SeaFoam most of the time if I need it. Best is just the heck out out of it.

If you do a search on MMO or Marvel Mystery Oil you'll get lots of opinions about it's use, worth and how to use it. Some folks like it, some prefer something else. I have an '04 and I use 3 oz. in the gas about every 3rd time I fill up.

And like Curt said: Wind the motor up real tight when you ride. No low rpm "thumpa-thumpa-thumpa" for these bikes. Ride her hard and hit that rev-limiter about once every time you get out and ride.

Yup. These beasts don't like being pampered too much. I'll add SF every third tank or so, since I don't ride it consistently every week.

It is a Marvel but aint no mystery. Git-R-Done. I use it about every fifth tank or so. Of course I always hit the rev limiter a couple of times a day. Looks koll at night with the flames shooting out.

Do you get any excessive smoking with these MMO treatments? I know my dad used it years ago, in vehicles that had been sitting, and they smoked like crazy. Of course they usually got it poured down the carburetor.

Also, I've had Yamaha motorcycles for over twenty years and it concerns me that Yamaha manufactures a four stroke internal combustion engine that requires upper cylinder treatment to prevent the exhaust valves from sticking...especially in this day and age. I would think Yamaha would have resolved any design issues, that cause SVS, long before bringing the Roadstar to market.

I guess I've been fortunate to not have developed SVS but should probably start using MMO or Seafoam periodically, as a preventative measure.

I have been adding Marvel to gas in everything I own since the late 70's.

I don't time adding the Marvel on the bikes or vehicles, I just add x amount whenever I pull in to the house with a full tank and think of it, sometimes it's twice a day, sometimes it's once a month.

As far as cool flames, I added, along with the marvel, a half quart of 3rd run white liquor (90% alcohol/180 proof) to my 3 gal fuel tank on my chop with the short assed unbaffled drags. I then went for a midnight run with several friends (we passed around the other half quart) and led the pack, when we got to our first stop after about 60 miles of shit-&-git triple digit drag racing between the metal scraping country back-road twisties, everyone gathered around me wondering WTF was wrong with my ride causing thre 2-4 feet of blue flame spewing from my exhaust ... I watched for it when we left there and man it was cool, the highlight of the night was when I reved to about 9-10 grand and slammed the throttle shut and flood and backfired right beside a lurking patrol car hidden on the side of the road (where he always hid) and made a boom about like a 12 gauge punkin ball in a barn and lit the cop up like a nuclear blast .. the guys behind me said all they could see was him in the window lit up like a spotlighted deer in a corn field making a "HOLY SHIT !!" face .. LOL
Yes as a matter of fact, we got pulled over by about 5 cop cars a couple miles up the road, the cops were local and cool though, they were more interested in what the flash was than harrassing us, I told them the same thing I just told ya'll, well, except for the second half quart. They got a good laugh and had me rev the bike and show them the steady 2 foot blue flames and warned us to be more careful. As they were leaving I stopped them and asked where they were going to be watching at in about an hour and a half, they asked why and I told them we would probably be riding back this way and I didn't want to get stopped again ... one of them started to say something and changed his mind, they just collectively shook their heads and split.

I'm guessing the chemistry was that alcohol burns slower and once my bike reached hot racing temps that after the gasoline used up the oxygen the alcohol saturated exhaust being super heated as it left the exhaust pipes would reignite when it hit the cool oxygenated night air. I should make a video of it next time I stumble into some white liquor.




Max

Oh yeah .. and I just love the smell of marvel burning through my bikes exhaust, god I wish they made a ladies perfume that smelled like it.



Max

Flames?!!? I'm in.

Does any body ever put and mmo or sea foam in the oil, and run it hard right before they change the oil? It would surely clean any gunk and deposits out wouldnt it???