On mine, I originally thought that the bike ran too rich, so I leaned the metering rod out a full turn. The bike became pretty lethargic and finally after being run for 15 minutes started to ping, so I reset the rod to its original setting. It had tons of low end power, put was running way too rich, couldn't set the idle and was a smoke bomb. Turned back a half turn leaner and the bike ran just okay, but with the problems described above. I want to try the JD kit in my Mikuni, as the bike seemed to have gobs of power all over with the stock set up. Really just looking to get it to be a consistent starter mostly. I will probably have to call Lectron like Kelly suggested.
I leaned mine out 1 turn on my 250 and i had lots of spooge also at high elevation. Didn't like the way it felt with the rod 1 turn lean so I set it back as delivered and set the power jet at one turn out instead of 1.5. Bike runs awesome at the elevation I ride and no spooge.I think Kevin hit it spot on as delivered.
Think I might agree, Lankydoug. Can't seem to find a sweet spot with my 36 on the 300. Lost track of turns in and out from delivered specs but would guess at 1 turn out (lean), idle at 1/2 to 3/4 out. Power Jet is 1/2 turn out, mid to full throttle very sensitive to PJ setting.
If you go back to the Mikuni with JD kit, try your 5.0 slide (I seem to remember you posting that is what yours came with). I am running the JD kit with a 5.5 slide and really liking it. I run in the low desert with red needle at #4, 30 pilot, 400 main, pump gas at 40 to 1
Yeah, I still have that slide somewhere in the garage. I'll have to find it and stow it with the JD kit which came in the mail today.
A 36mm should work on everything up to 300cc. BTW, I got a call today from Bill at H-T Racing. he is trying to come up with a Lectron setup to replace the balky FI system on 4strokes. Bill helped KTM develop the current 350cc 4 strokes.
Something is up , KTM 300's run 36mm Kehins and a Lectron 36 on my 250 has way more top end than the RB 39 kehin that was on it
My 36 has significantly better top end on my 250 than stock. Seems weird. My advice on the Lectron is to spend an hour or two and play with it... Try leaning it WAY out. Start it up and see how it performs in the garage. Then richen it up --- see what you get. You can generally tell its running rich if you have to dial too much idle in. On mine, I adjusted mine so that it was so lean that it would bog when I yanked the throttle. From there, I richened it up 1/2 turn. Additionally, I have my power jet only open 1/2 turn. Any more than that and it won't run on the top end -- cuts out, runs awful. So get the bottom and mid sorted out, then play with the power jet. FWIW -- After I set mine up I have ridden in temp ranges fro 30 - 80 degrees and from 2500' to 6000'. The only thing I have had to do is occassionally tweak the idle a bit. No spooge -- very clean running.
Had mine up to 7000' last Friday. Ran great the entire way. Didn't notice any issues with rich bottom. Very clean and no spooge. We were clearing trail so it was mostly bottom running too.
My wr300 is an 07 wr250 with a factory kit. Any way I ordered mine back in January recieved it installed it, adjusted the idle and have been riding happily ever after. It's a 38mm. I run 50/50 race gas, 100 or 110 depending what is available, and 90 octane non ethanol "premium". Far as me personally its the greatest thing since sliced bread. Oh yea, it doesn't pee any gas. Go figure! Only other mod is a provini tech but that wouldn't make any difference. Wish I could offer something, sorry. Dave
Well, I have a 13 TE 300 Berg, so same basic KTM 300 motor. Got the Lectron as set up from Kevin. Rode it twice for 3 hours (winter) and it spooged like a mofo, but ran okay. Pulled good but would spooge out the silencer and at the silencer/pipe joint all over the carb and rear shock spring. Leaned it 3/4 turn on the rod. Left PJ where it was. Went to Harfield and McCoy's and it rode okay but had a flat spot from mid to top and I used roughly 40% more fuel than my carb'd 300 GG counterparts. Still bike ran okay and hauled me everywhere, just not cleanly. Detailed the bike today. Changed air filter, swapped out the Lectron for my stock Keihin with a JD jet kit. Changed the plug. Plug was black and wet with build up on the electrode. With Keihin, fired it right up. Had to adjust idle, but bike fueled cleanly and was crispy. Gonna go ride it this weekend to check it out. I think I need to lean the Lectron out quite a bit more, but for now, gonna run the Keihin with JD jet kit.
Don't forget that a bike that has been run too rich will have spooge collected in the exhaust which will release - especially when it's jetted close to right since the exhaust temps go up - and I would replace (or at least clean) and spark plug that's collected too much carbon.
I've got three races on my '09 wr250 with the 36mm lectron and it's awesome. Starts easy, idles good, lugs great and is almost unstallable, good midrange and it rips up top. The increase fuel efficiency also allowed me to put the stock tank back on (liked the ergos better than the ims) and still finish most races without pitting for fuel. Took me a while to get the metering rod set but after that nothing but smiles.
Lectron is here, (Thanks Kelly, fantastic service and quick shipping to Australia.) bolted in on my 09 WR250 supermoto & I'm both stoked with it and perplexed. Instantly ran better than the factory carb, no doubt. I've always have had issues with very small throttle openings (popping and farting.) and in stock trim the Lectron all but eliminated this, bar a very small window (maybe 0 - 5% open). Plug was a dark brown, with a little black (not a proper chop, just looking after ride). When running down a hill on closed throttle, it also eliminated the popping and general carrying on it used to do on factory carb. Did about 10 km at medium pace (public roads). Figuring like a lot of them, it needed to be half a turn leaner, I tried that. Now here is where it gets interesting, this made it worse. The bike ran like an absolute bloody animal, first 3 gears had the front in the air under power, but under small openings (now 0 to maybe 8%) it was not at all happy. Also in neutral if you snapped the throttle, revs would hang before settling back down (lean as far as I know). Today, turned the rod back in halfway between the 2 settings, (1/4 a turn leaner than how it was shipped.) and it seemed a little better, but not as clean as how it came. Dropped the idle a little and seemed a little better again, but still not as good as how it was shipped. Now obviously I am going to pull it back off and reset it to how it was shipped, what I can't figure out is why leaning it out made the small opening issues worse? I always figure that the carrying on at small openings was a rich issue, rectified in the past (semi successfully) by running a smaller pilot jet. I have a new plug to chuck in, but I can't see it making that big a difference. Anyone have any ideas? As I said, 5-100% throttle and it's seriously hard to hold on to. Put it in 3rd or 4th at low speed and slam the throttle open and she doesn't bog, and will just pull from ridiculously low RPM. Love the carb, I can live with the tiny spot at low openings, but it doesn't seem to make any sense. Any help appreciated.
Oh, bike never had a drama starting, general 1-2 kicks cold and 1st warm, but will fire dead cold in half a kit with the Lectron, it's so easy.
