Round two of the "other" carb types - Lectron

[Vinduro]

Maybe the New Husqvarna's built in Austria could have Lectrons instead of FI. Best of both worlds !

 

[sparky22]

i had lean symptoms as delivered, hanging idle, went a 1/4 richer but i seem to be sucking some pretty good fuel as well.

after 1.5hrs of slow/med speed tight stuff, i was surprised i needed to top off the tank, quite a bit was used up. after going richer on the rod, the idle knob had to be turned clockwise another ~1/8 as well so i'm barely ~1 turn out. my PJ is still set as it came.

more testing this weekend. i think i will go back to 1/4 leaner on the rod to see if i still get the hanging idle with a fresh filter.

Have you figured out the hanging idle issue?

 

[typeone]

sparky, a hanging idle means the rod is set lean.

 

[Motosportz]

Mine runs really good but does hang slightly at times. Does not bother me at all.

 

[sparky22]

sparky, a hanging idle means the rod is set lean.

I have my rod set so rich that I can't turn the idle screw in any more to keep it idling. The bike runs great but when I come to a stop or go down a long hill, I get a fast idle and then 8-12 seconds later the idle drops really low. It won't stall, but it doesn't seems right.

 

[lankydoug]

I have my rod set so rich that I can't turn the idle screw in any more to keep it idling. The bike runs great but when I come to a stop or go down a long hill, I get a fast idle and then 8-12 seconds later the idle drops really low. It won't stall, but it doesn't seems right.

As you lean out the rod you will be able to back out the idle screw. When it's right it will have a strong idle that will stay put and not load up.

 

[sparky22]

As you lean out the rod you will be able to back out the idle screw. When it's right it will have a strong idle that will stay put and not load up.

But the hanging idle would indicate a lean condition. I really can't go any richer.

 

[lankydoug]

But the hanging idle would indicate a lean condition. I really can't go any richer.

I'm thinking if you have the slide raised way up it is out of the range that it can't properly meter the idle fuel. In the idle section of the booklet it says that if the slide opening is wide than the rod is most likely too rich

 

[Motosportz]

I'm thinking if you have the slide raised way up it is out of the range that it can't properly meter the idle fuel. In the idle section of the booklet it says that if the slide opening is wide than the rod is most likely too rich

sounds spot on.

 

[sparky22]

I'm thinking if you have the slide raised way up it is out of the range that it can't properly meter the idle fuel. In the idle section of the booklet it says that if the slide opening is wide than the rod is most likely too rich

I was having the hanging idle when I was a full turn leaner on the rod. I figured one full turn richer would have taken care of any lean condition. So I was surprised that it was still happening.

The 8-12 second delay is what is throwing me. I wouldn't have thought a lean rod setting would have produced that long of a delay. I was thinking/hoping that that long of a delay might indicate that something else is out of whack.

 

[Blakelpd5]

Update:
With my PWK Airstriker, I always got horrible mileage out. With an oversized IMS tank, I was BONE dry at 55 miles... The bike ran great, and seemed a bit fat at times, but nothing major.


Did 70 hard miles yesterday, and still had at least 10 more in the tank. I went from a 55 mile range, 80+.

 

[Motosportz]

Update:
With my PWK Airstriker, I always got horrible mileage out. With an oversized IMS tank, I was BONE dry at 55 miles... The bike ran great, and seemed a bit fat at times, but nothing major.


Did 70 hard miles yesterday, and still had at least 10 more in the tank. I went from a 55 mile range, 80+.

That was a good ride, I got about the same mileage with my 165 / lectron

 

[wallybean]

Just an update on the Lectron and altitude changes. Did a ride to 7700 feet yesterday with the same settings as I was running in the desert at 900'. Ran perfect no need to adjust anything! The only changes to the carb since this winter has been to do a mod to the rod to duplicate Kelly's custom rod. This richens it up from mid to top only. Ran perfect.

 

[Motosportz]

Just an update on the Lectron and altitude changes. Did a ride to 7700 feet yesterday with the same settings as I was running in the desert at 900'. Ran perfect no need to adjust anything! The only changes to the carb since this winter has been to do a mod to the rod to duplicate Kelly's custom rod. This richens it up from mid to top only. Ran perfect.

thats great info because i am taking my 165 and 50-2500' jetting to 4000-8500' Jetting in Idaho next weekend.

BTW tried the new MS-3 custom rod and shorter PJ tube and . PERFECT. Super smooth power and runs perfect everywhere. Seemless, crisp and never even looked at the carb all day. Starts better, idles forever at a nice smooth idle. Love it.

 

[marshwater]

Getting a lot of spooge on my 13 wr125. I had messed with the setting s when it was on my 01cr125. No spooge with that bike. If I screw the pj all the way In. Is this the best place to start? Leaks has out the overflow too. Mostly wanting to eliminate the spooge

 

[marshwater]

turned the metering rod out 1/4 turn and now she's ripping.

 

[Motosportz]

thats great info because i am taking my 165 and 50-2500' jetting to 4000-8500' Jetting in Idaho next weekend.

BTW tried the new MS-3 custom rod and shorter PJ tube and . PERFECT. Super smooth power and runs perfect everywhere. Seemless, crisp and never even looked at the carb all day. Starts better, idles forever at a nice smooth idle. Love it.

Just got back from Idaho, 70 degrees and 4000-4800' huge climbs for 7 hours straight. Carb was absolutely PERFECT. Started 1st kick every single time, idles perfect, great power with no dip or flat spots, awesome milage even at race pace. Got a 2nd place finish in my class. Could not have been more happy with my 165 / Lectron setup. Full report later.

 

[duey]

Installed ms-3 with new cable will ride this evening not sure the adjustment yet hoping for more bottom end snap.mid-top has been perfect has anyone had thoughts on ms-3 rod compared to 4.1 xl

 

[Dirtdame]

Hey all, I put my 36 mm Lectron up for sale in the classifieds.

 

[Rob09]

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.

Quick look at the plug, if this helps. It's driving me mad.