Hey everyone, quick question. So I was out tonight for a ride trying to see what I can get for mileage since I did the .22 cent mod and a few other things. So around 340 km I had to hit reserve, which is about 20 km less then usual. But it was also last years gas with stabile in it and it was regular gas aswell. I rode 25 km back to town to top up with supreme gas and then carried on for another ride. After I filled with supreme 94 octane my bike has lost its pep. Topped out at 150 km instead of 175 and just didn't have the regular acceleration it had before I filled up. So my question is what happened? All i can think of is if there was any water or dirt in the bottom of the tank it got caught in the fuel valve on the tank maybe. I have a hi-flow fuel filter that I installed a few hundred km ago and it seems to work fine. Should I put some gas line anti freeze in to dissipate the water? Any ideas what this can be? It starts and idles great still? Stumped???



'Life's Journey is not to arrive at the grave safely in a
well preserved body, but rather to skid in sideways,
totally worn out, shouting, 'Holy shit .... What a Ride!
Cheers, Nick

MIGHT be the premium gas. KLRs are low compression and like the cheap stuff.

Yeah I always run regular to but figured I would spoil it tonight.... Well I guess ill burn it all off and see what happens. I hope it's as simple as that.

Thanks



'Life's Journey is not to arrive at the grave safely in a
well preserved body, but rather to skid in sideways,
totally worn out, shouting, 'Holy shit .... What a Ride!
Cheers, Nick

I like what Savage said.

Great cooling and low comp.
KLR's like the crappy gas. LOL

Maybe, guys, but . . . I don't know of any instance where a gasoline engine performed markedly worse with higher octance fuel . . .

The heat energy of "regular" fuel may be greater on a miniscule level, but . . . doubt the difference detectable even on a seat-of-the-pants meter.

Fuel contamination, as suggested, seems a more likely culprit to me.

I'd suggest draining the fuel bowl, and draining a few ounces from the fuel tank also, THROUGH THE RESERVE PETCOCK POSITION. Why RESERVE? That's the lowest outlet in the tank; and--condensate settles near the bottom.

Some alcohol-based fuel treatment, like Heet, wouldn't hurt anything.

Blaming loss of power on higher-octane fuel condemns and innocent characteristic, IMHO.

It could be that as well.

Well poured a half bottle of heat in the tank and only ran it around 20 km and it seems to be alot better already. So it must have had water in the bottom of the tank. Next job run er low again and flush the tank out. Oh joy!

Thanks for the ideas folks



'Life's Journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways,totally worn out, shouting, 'Holy shit .... What a Ride!
Cheers, Nick

If "flushing" the tank out involves draining it, drain it with the petcock in the RESERVE position (to evacuate the lowest-residing remnants, where the heavier condensation settles).

Or, maybe as mentioned above, drain the fuel tank through the carburetor with the petcock open (gotta apply vacuum, if stock) and on RESERVE.