ktm 640 adventure

[Johan]

Hi! I would just like to know what kind of petrol to use, and if I should put in something extra. (my first fillup), bike has gone 25000km. Thanks /Johan

[Dave Watkins]

This just in from "The Great White North",

> Hi! > > I would just like to know what kind of petrol to use, and if I should put

in something extra. (my first fillup), bike has gone 25000km.

>

25000 klm and time for first fillup?????? Better add this to the FAQ as I suspect it's a significant KLR milestone. Please let us all know what modifications were made to your bike to obtain this improvement. Cheers, Dave Watkins 1998 KLR 650 " The Prodigal Son" Calgary, Alberta, Canada dave@... Voice: 1-403-701-5746 Fax: 1-403-266-0626

[Mark Sampson]

Hi! I would just like to know what kind of petrol to use, and if I should put in something extra. (my first fillup), bike has gone 25000km. Thanks /Johan The highest octane you can buy----to keep pinging (detonation) down. Mark Sampson

[Devon Jarvis]

Mark Sampson wrote:

> > Hi! > > I would just like to know what kind of petrol to use, and if I should put in > something extra. (my first fillup), bike has gone 25000km. > > Thanks > > /Johan > > The highest octane you can buy----to keep pinging (detonation) down. >

I would say get the lowest octane fuel you can find, and see if the bike runs properly. If you don't have problems with pinging, then congratulation you just saved some money. If you get pinging, try the next higher grade. If you get to the highest octane and the bike still pings, it's time to look at the jetting. The lowest octane gas that doesn't ping will give you the most power. Devon -- "It's a troublesome world, all the people who are in it, are troubled with troubles almost every minute" Dr. Seuss

[Pople, Michael (JUS)]

What do you all think of octane boosters? Been toying with the idea but not sure if there is a downside I should be aware of. 92 octane is the highest I can find around here so I like the idea of upping it a bit. Mike Message: 20 Date: Wed, 16 Jul 2003 09:32:04 -0500 From: "Mark Sampson" Subject: Hi! I would just like to know what kind of petrol to use, and if I should put in something extra. (my first fillup), bike has gone 25000km. Thanks /Johan The highest octane you can buy----to keep pinging (detonation) down. Mark Sampson

[Thor Lancelot Simon]

On Wed, Jul 16, 2003 at 11:31:35AM -0500, Pople, Michael (JUS) wrote:

> What do you all think of octane boosters? Been toying with the idea but not > sure if there is a downside I should be aware of. 92 octane is the highest > I can find around here so I like the idea of upping it a bit.

The amount of octane booster in a whole bottle of that stuff, poured into even just the 5 gallons of gas in the KLR's tank, will only raise the octane of that tank of gas by a few tenths of a point. A more interesting question is _why_? Have you modified the compression of your motor, rejetted extremely lean, advanced the ignition timing, or otherwise done something that would require higher-octane fuel? My KLR runs pretty well on even the 86 octane gas one often finds out West, with only very occasional pinging, and above about 3000 feet altitude it runs fine on 85 octane, too; it runs great on 87 octane gas at sea level, and remember, with fixed ignition timing (e.g. no computerized engine management system that includes a knock sensor) you will get the most power from the *lowest* octane gas that does not cause a knock, ping, or other sign of detonation. The only modification I've made to my bike that's even remotely relevant is that I have the pilot screw set at 2 turns out, rather than the 1 turn or thereabouts that Kawasaki had it at from the factory. But this is only a _very_ slight richening of the mixture at most throttle positions...

[Devon Jarvis]

"Pople, Michael (JUS)" wrote:

> > What do you all think of octane boosters? Been toying with the idea but not > sure if there is a downside I should be aware of. 92 octane is the highest > I can find around here so I like the idea of upping it a bit.

Octane booster will only make the fuel harder to burn, and the KLR is a low-tuned motor anyway. It should run OK on 87. Mine pings on rare occasions under full throttle and heavy load in hot weather, but not seriously. I never had any pinging on 91 or 93. I had pinging problems with my '78 SR500 after installing a 10:1 piston (stock was 9:1). Octane boosters did jack sh*t, as did retarding the timing. Richening the mixture fixed it. Blending race fuel or Avgas with your pump gas is the only reliable octane booster I know of (damn expensive too). The octane numbers are arrived at differently, but 110LL (low lead) should work if you mix it with pump gas. Serious race fuel might not even work with a motor with 9.5:1 compression. Again, you will not see any performance gains. It will not run "cleaner". It's like running jet fuel in your kerosene heater. Devon A15-Z -- "It's a troublesome world, all the people who are in it, are troubled with troubles almost every minute" Dr. Seuss

[Arden Kysely]

If your bike isn't pinging, you don't need more octane. By adding a booster, you'd be diluting your gasoline and getting less power from each charge. __Arden --- In DSN_klr650@yahoogroups.com, "Pople, Michael (JUS)" wrote:

> What do you all think of octane boosters? Been toying with the

idea but not

> sure if there is a downside I should be aware of. 92 octane is the

highest

> I can find around here so I like the idea of upping it a bit. > Mike > > Message: 20 > Date: Wed, 16 Jul 2003 09:32:04 -0500 > From: "Mark Sampson" > Subject: > Hi! > > I would just like to know what kind of petrol to use,

and if

> I should put in > something extra. (my first fillup), bike has gone

25000km.

> > Thanks > > /Johan > > > > The highest octane you can buy----to keep

pinging

> (detonation) down. > > Mark Sampson

[Harry Seifert]

> [Original Message] > From: Devon Jarvis > To: KLR650 group DSN_klr650@yahoogroups.com> > Date: 7/16/03 9:43:51 AM > Subject: Re: [DSN_klr650] RE: What kind of petrol to use? > > > > "Pople, Michael (JUS)" wrote: > > > > What do you all think of octane boosters? Been toying with the idea

but not

> > sure if there is a downside I should be aware of. 92 octane is the

highest

> > I can find around here so I like the idea of upping it a bit. > > Octane booster will only make the fuel harder to burn, and > the KLR is a low-tuned motor anyway. It should run OK on 87. > Mine pings on rare occasions under full throttle and heavy > load in hot weather, but not seriously. I never had any > pinging on 91 or 93. > > I had pinging problems with my '78 SR500 after installing a > 10:1 piston (stock was 9:1). Octane boosters did jack sh*t, > as did retarding the timing. Richening the mixture fixed it. > > Blending race fuel or Avgas with your pump gas is the only > reliable octane booster I know of (damn expensive too). The > octane numbers are arrived at differently, but 110LL (low > lead) should work if you mix it with pump gas. Serious race > fuel might not even work with a motor with 9.5:1 > compression. > > Again, you will not see any performance gains. It will not > run "cleaner". It's like running jet fuel in your kerosene > heater. > > Devon > A15-Z > > > > -- > "It's a troublesome world, > all the people who are in it, > are troubled with troubles > almost every minute" > > Dr. Seuss

Hi guys, I'm running a 50/50 mix of fresh premium and Trick or VP racing gas.........I just like the way it smells...the racing stuff, not the pump crap. BTW, my 450 Ducati single runs with a 10.5:1 piston and does just fine on 102 octane race gas. It sometime smells like extra virgin olive oil. Buddy

[Devon Jarvis]

Harry Seifert wrote:

> > > I'm running a 50/50 mix of fresh premium and Trick or VP racing > gas.........I just like the way it smells...the racing stuff, not the pump > crap. BTW, my 450 Ducati single runs with a 10.5:1 piston and does just > fine on 102 octane race gas. It sometime smells like extra virgin olive > oil. >

I wish it was easy to get that stuff around me. My '78 SR500 (10:1 piston) would have kicked ass on race gas. I had to jet it bog rich to stop the pinging, with high-octane race gas I think I could lean it out a bit and get more power. Vegetable-based two-stroke oil is what gets me. I used to fly control-line model airplanes with my Dad when I was little, every time some guy tears past me running Castrol race mix in his two-stroke it takes me down memory lane. Oh, the smell of burning nitromethane and castor oil in the morning..... Devon -- "It's a troublesome world, all the people who are in it, are troubled with troubles almost every minute" Dr. Seuss