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#1
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Pinking - preignition
Hello,
I've a 2015 Ec250, haven't had it long. Start fine runs well but at low speed ie in traffic on the road etc. I can hear pinking. Soon as you open it up it goes. I use the bike on green lanes so there is a fair bit of low speed riding . Is this normal with these? |
#2
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What's this 'traffic' you talk of?
So can we assume that you live in a country that requires that the pipe requires a Cat in it? That will make it run dreadful as I found out when trying a spare pipe I was given. To check try run some flexy curtain cord up there. Cat would be in the fattest part of the pipe. Failing that try winding the idle mixture in 1/2 a turn and raising the needle by moving the clip down one notch. Actually I did just this yesterday for the same reason. It's coming on winter here and I was getting some detonation pings on part throttle.
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'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#3
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I believe he is in the UK. At least he posted in the UK section. I don't think there is a Catalyzer involved if we are talking UK.
Sent fra min E5603 via Tapatalk
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Anders "So you know, that you're over the hill when your mind makes a promise that your body can't fill" (Little Feat: Old Folks Boogie) 2015 EC200 Racing: TE bars, Rekluse Core Exp 3.0, 38mm Lectron & Ohlins S3 steering damper 2006 EC200: 2011 plastics, Rekluse Z-Start, revalved KYB forks & Scotts steering damper 1998 Bimota Supermono 1986 Duc Mille S2 1975 Guzzi sidecar hack 1961 Morini Corsaro 125 etc |
#4
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Pinking.
Hello,
Yes I'm in the UK - In the UK we have "Byways " which are old farm roads, you can ride these with a legal motorbike. The bike must have insurance, road tax and if it's over 3 years old you need an MOT. To get to these "Byways" you have to go on the main road and there you ride in the traffic. The bike doesn't have a Cat in the UK. Hope this make sense. I will have a good look at the set up at weekend. Cheers Bill |
#5
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So just to be a pendent, it is not preignition, it will be detonation which is the uncontrollable ignition of end gases. None of which matters but is a symptom of lean, over advance, low octane etc. Expect lean.
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'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#6
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F5 are you aluding to what we call "knacking" where there are explosions in the pipe from unburned gases? My experience is it occurs as a result of overly rich low or mid speed jetting. It goes away as the revs climb when the engine clears out. Knacking is a random event. A steady event would not be knacking. Unless the original poster is just talking about typical 2T stuttering from running in an unloaded condition (part throttle).
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2011 EC250E |
#7
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in the US many ask about "pinging" (also called pre-ignition). A slightly loose chain at lower RPM's can sound much like the same and is the cause of many of the complaints. Check your chain tension before you do anything too time consuming
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jeff '00 XC250 (mine) LTS front and rear suspension, power valve cover, carb jet kit and rear chain glide, RB Designs head mod, BRP tall triple clamp, backyard foot-peg lowering conversion. '04 EC250 (the kids) (he can do his own mods haha!) |
#8
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Detonation sounds like some evil gremlin with a hammer trying to get out.but sometimes you just can't hear it.
I've never had pipe explosions on a 2 stroke I believe however it has been a feature of my triumph street and quite a bit of remap attempts to banish it (think I'm there). And yes that was too rich on closed. But 4 strokes are funny like that.
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'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
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