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I'll be back to let you know as soon as I have everything installed
So I made the full adjustments from the front page and tested it in the motocross field today, the bike no longer chokes when the grip is open, but when stationary it gets rich and stalled, I'm thinking of changing the idle jet from a smaller one
The Shop
40:1
Temperature 12 degrees in the morning and 25 in the afternoon altitude 0
The air screw I tried 1.5 and 2 turns it was always too rich
FMF factory line
as indicated the only modifications I made are the needle on the 3rd notch, and the jet slowed down to 35
the motorcycle has a hole in the net opening of the handle
otherwise RAS and correct color spark plug
Motor just rebuilt, nothing crazy done to it.
FMF exhaust with turbine core silencer.
I'm going to put the 36mm keihin carb on it.
Any jetting recommendations to start with?
SoCal riding conditions.
Thanks
Do These run any better with your jetting configuration?
As for bsbrits here and the LEctron.... Which LEctron is it? The H model or the new Billetron? The H model is just a lean carb all around. And the fact that there is no pilot circuit makes it impossible to adjust only the initial crack of the throttle or the starting circuit (for these cold temps) separate from everything else. I've experienced this exact case before with the H-models.
If you still want to try to get the LEctron working, first thing to do... get a good digital caliper and measure your metering rod length. Write that down on the paper along with the "as delivered" metering rod length that came with the carb from LEctron. This way if you get lost, you at least have a reference point to go back to. It is very easy to get lost on these carbs as only a few clicks on the metering rod can have you totally out of the ballpark.
Now that you've got that measurement, richen the metering rod small increments and test. On every LEctron I tuned, it was only small adjustments from the as-delivered rod length to get it right. Usually had to make it slightly richer.
Once you get the bike to start in cold temps and run without the bog, then you can adjust the power-jet circuit to get the mid-top right. Same thing, write down where it currently is next to the "as-delivered" setting. Should not take more than 1/8 or 1/4 turn to get it right.
Pit Row
I’ve heard of the mysterious bog issue and it seems random. Good luck and let us know how things go.
What fuel, oil and ratio are you running? Anything else that might be leaning the bike out? Vented airbox? Very lightly oiled filter?
As DynoDan said, if you try the AJ specs, at least you can do a 1-1 comparison to others in this thread and try to make sense of what is going on. I'm thinking you might have an air leak or something wrong with the reed block or something.
The "as delivered" metering rod length: 2.052.
PJ: 3/4.
I run 40:1 927 Maxima. I've tried the vented and non cover.
When I twist the throttle under load and on the stand, I can stall out the bike.
I'm gonna ditch the lectron and use the jetting on page 1. Doing a new top end. How the hell does my piston look this clean after 40 hours. Do I have a lean condition? Look at ring around the edge.
JCP411-is you bike still running good with the keihin air striker 38?
Yes it runs really good with the needles digger recommended. Crisp,clean and lots of power!!
I may go this route if I can't get the mikuni straightened out. Can you tell me the jetting specs that were recommended to you for the keihin?
I have thread with it all posted with diggers help just search it with my user name, it will be easier to understand. If you have any questions after reading it let me know.
I think your engine has been running really rich and excess fuel has washed away all the carbon away from top of the piston
https://www.arcticchat.com/threads/piston-wash-what-is-it-and-how-do-i-…
Is it rough around the edge? Looks like it has been pinging. Never seen a two stroke piston that clean unless it has less than a handful of hours on it.
I know. I have been changing pistons for 35 years and never had a piston with no carbon. Weird. Piston looks like detonation around the edges. X dimension is at 0.
Post a reply to: 125/150/250/300 KTM/HUS/GG jetting thread