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  Topic Review (Newest First)
09-13-2012 06:46 AM
Verwah The KLR stock compression ratio does not require greater than 89 octane. The engine also lacks the electronic and mechanical technology to advance timing enough to utilize high octane. Unless the engine has been augmented for performance, regular gas is cool.
09-12-2012 08:48 PM
Whitebread117 no premium needed. 87 octane works fine. On hot summer days where I'm going down to the foothills to try and keep up with my sportbike friends going up and down the mountain grades I'll put in 89 because I'll get detonation on RARE occasions, only uphill at WOT on HOT days. 99% of the time 87 runs just fine. Those of you running premium are getting the full benefits of the placebo effect - nothing except what's in your head.

This is a low compression tractor motor. It'd run on 80 ocatane if it were available stateside. My GSX-R750 turning 15,000rpm would run on 87 without detonation, please don't think our low compression low rpm thumper requires premium.
09-12-2012 12:11 PM
manoverboard Thanks for the info.... I had been used mid-grade gas just in case either scenario was
right = regular or premium. So now I can use regular with piece of mind.
08-17-2012 09:44 AM
eparker202 No, you dont have a compression ratio high enough to require high test (premium). Just put regular in, then tip the gas attendant the difference if you really want to spend the money for premium, you wont notice a difference and the attendant will be able to feed his crack habit.
08-16-2012 07:36 PM
abq sketchman All great advice guys! Much appreciated.

Sent from my groovy Samsung Galaxy S 1 smarty pants Fone ringy thingy dingy.
08-16-2012 07:18 PM
KLR Thumper My 08 ran terrible on high test "premium" gas. It actually had less power an was all and all not good. Drained it down and filled on cheap regular and it was back to it old snappy ish ways



'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
08-16-2012 07:13 PM
steferf Hi abq,

The klr has a carburator instead of a fuel injector. I'm not sure if fuel additive carb cleaner is the same as fuel additive injector cleaner. I think most scooters use fuel injectors fwiw.

I run regular gas. I've never heard of high test gas, is it the same as "premium" gas? If so, I believe that is designed for high compression motors to prevent predetonation. My understanding is that it doesn't offer a performance in a standard motor.
08-16-2012 04:09 PM
abq sketchman I will ask my bike mechanic. Thanks for the info

Sent from my groovy Samsung Galaxy S 1 smarty pants Fone ringy thingy dingy.
08-16-2012 04:06 PM
Wildhare
Quote:
Originally Posted by abq sketchman View Post
Thanks wildhare. What about that Lucas fuel injection cleaner stuff once in a while? My scooter loved that every so often.

Sent from my groovy Samsung Galaxy S 1 smarty pants Fone ringy thingy dingy.
Never used it in mine but I don't see what it would hurt.
08-16-2012 04:04 PM
abq sketchman Thanks wildhare. What about that Lucas fuel injection cleaner stuff once in a while? My scooter loved that every so often.

Sent from my groovy Samsung Galaxy S 1 smarty pants Fone ringy thingy dingy.
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