For whom the bell tolls
The only change I've made since it was running fine was that I've put Gull Force 10 (ethanol blend) in the tank.
Is it possible for a bike to run fine on idle and then have one cylinder pack up under load due to contaminants in one of the carbs? Or should I be focusing my efforts on the ignition system?
KiwiBitcher
where opinion holds more weight than fact.
It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.
Double shot!!
My guess, is the ethanol blend flushed some crap out of the tank and blocked an emulsion tube. That will make it run fine at idle and very low speed, but over 2500 rpm and at partial throttle it will miss and backfire real bad. If the miss is further up the rpm range, then the main jet is blocked.
In any case, it is trivial to whip them off and blow them out, even without compressed air. A can of flyspray will do at a pinch.
Steve
"I am a licenced motorcycle instructor, I agree with dangerousbastard, no point in repeating what he said."
"read what Steve says. He's right."
"What Steve said pretty much summed it up."
"I did axactly as you said and it worked...!!"
"Wow, Great advise there DB."
WTB: Hyosung bikes or going or not.
For whom the bell tolls
Well, it has nothing to do with the fuel or the ignition. I took the float bowls off and one of the main jets fell out. Don't know how it's come undone as I've never touched it before.
KiwiBitcher
where opinion holds more weight than fact.
It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.
Forum whore
Soooo, you're saying that things you normally put in place eventually fall out/off?Originally Posted by R6_kid
Forum whore
Don't be tempted to rape it with the screwdriver when you put it back in.
For whom the bell tolls
LOL, that came across wrong! I was surprised, I'd think that with something like a main jet you'd torque it up, or at least tighten it more than finger tight. I do have a history of losing fairing fasteners though.
Learnt that lesson on a very old set of RGV250 carbs, good thing they were already fucked.
KiwiBitcher
where opinion holds more weight than fact.
It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.
Rider Coach
Umm,
You know about vibrations and Frequencies right??
At least you discovered why.... Always better than putting it all back together, and it works, but not sure what you changed to fix it...
For whom the bell tolls
Yeh but surely a correctly fastened jet shouldn't come undone?
KiwiBitcher
where opinion holds more weight than fact.
It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.
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