Posts
12
Joined
3/21/2019
Location
Centerburg, OH
US
Edited Date/Time
3/23/2019 9:19am
I have a 2017 Kx450f I just did a top end in it with a wiseco high compression piston 13:8:1 and stock is 12:3:1 and now when I have the bike under a load in 3rd or 4th gear it pings pretty noticeable (at full throttle) for about 2 seconds. I run 93 pump gas but was told it could be detonation. Need help!
It is detonation, and yes that much increase in compression is more than enough to make it ping.
You should adjust your fuel and possibly your timing settings as it will run leaner with more compression because the higher compression increases the engines volumetric efficiency.
If you don't mind running ethanol, VP street blaze or Sunoco may cure the problem, but the jetting and possibly the timing should still be set to the optimum level for the fuel used and the higher compression etc.
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The Shop
It is best not to mix ethanol with gasoline/fuel containing MTBE if possible, especially if you are in an area where there is a reasonably high possibility of water getting into the fuel as the alcohol absorbs it from the atmosphere.
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Pit Row
OP wants to stop the pinging. Hes either running lean or needs ~100-110 octane gas. Stop making it more complicated than it needs to be. Fuckin hell dude.
"barnetts ass"
You like sniffing what?
"turns the thread into a pissing match."
I simply post facts and/or logic and correct some other peoples posts that I know are inaccurate. it is in FACT you, and just a few others that turn things into a laughable sh_t show, unfortunately at an op's expense.
"OP wants to stop the pinging. Hes either running lean or needs ~100-110 octane gas."
ummmm...I already basically stated the same thing, but thanks for repeating it and being correct for once, lol.
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Yup, and I use that as a generic term even when referring to fuel injection systems which I know a fair bit about, but certainly not everything. I also obviously could have suggested that he set his "fuel curve", or "AFR" (Air Fuel Ratio) via the computer on his bike etc, so it is merely a matter of semantics, but since you are obviously an ass, you want to do nothing other than try to appear as though you know more than others instead of simply trying to help someone just for the sake of helping them, but that's an understandable characteristic in people that have a frail and needy ego like you, and a few others here obviously do, lol.
"That tells everything all of us need to know about you."
WRONG AGAIN, as you may, or may be able to (depending on your level of intelligence which appears to be marginal at best) deduce from my comment above, you made an ASSUMPTION and your ASSUMPTION was incorrect, as many of your other statements often are, lol.
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