I didn't know girls bikes came in an R designation. :rofl: The owner gets pickier the older he gets, been hitting the build a sixxer rack at the local watering hole. Whole rack of imports and good stuff for $11 a six pack.Damn Randy...The DZR/R has picked up on one of it's owner's habits on drinkin the cheap stuff!
11.3:1 low octane 87 is what the manual calls for.whats the CR on the stock 400 motor? my buddy just runs premium no matter what, as do i with the 250 but thats because its a "HC" motor. supposedly. only 11.8:1. yamaha recomends 91 or better and my choices at the pump are 97, 89, or 93. i figgured the DRZ was the same way... guess not
i dont know what that bike calls for, i know that higher compression motors are supposed to have higher octane, but no idea what the cutoffs are. i guess as long as you dont have any detonation, youre good.I have no idea what my KLX450R calls for, but it has yet to complain about $3.89 per gallon 87 octane. Beggers can't be choosers in my case. :thumbup:
There arent any guideline "cutoffs" because the required octane for an engine is based on ignition timing and engine speed as well as compression ratio.i dont know what that bike calls for, i know that higher compression motors are supposed to have higher octane, but no idea what the cutoffs are. i guess as long as you dont have any detonation, youre good.
i can only speak for here, but. ALL the fuel "contains up to 10% ethanol"I was under the impression the higher 91 octane doesn't contain ethanol and that fuel with ethanol doesn't burn as well at higher rpms. I've always ran premium cause I dont mind paying a little more especially when Im only pumping 2.5 gallons. Maybe I'm just stuck in my ways.
Best to ask Eddie as he would know what was done in there. Detonation sounds like marbles banging around inside your cylinder.OK, how about a big bore DR-Z with E compression at 5300 ft? I've been running premium in it, because I'm scared I wouldn't know detonation if I heard it. I forgot to ask Eddie when I picked it up.