125-200cc LECTRON....FOR SALE

[dartyppyt]

There are a lot of variables out there and it is very hard to compare apples to apples. Especially temp and elevation changes. Heck some of the Efi units can't deliver the proper mix.

 

[rockdancer]

I just put the 6chy 16- 62 needle and 5.0 slide in my RB designs plated 39 mm TMX and rode it up the road . Ran like crap - too rich

Then I realised the choke was still on

It seems to work well - nice smooth and hard pull
- will have to ride it properly .
may need to go to 6 slide as Darin says
Ran with 30 pilot and 470 main .

 

[dartyppyt]

I just put the 6chy 16- 62 needle and 5.0 slide in my RB designs plated 39 mm TMX and rode it up the road . Ran like crap - too rich

Then I realised the choke was still on

It seems to work well - nice smooth and hard pull
- will have to ride it properly .
may need to go to 6 slide as Darin says
Ran with 30 pilot and 470 main .

Your main is too high if I remember. Try dropping that some to like 450.
Also, use a 1/2 clip needle shim to do 1/2 clip needle moves. You can really fine tune it.

 

[troy deck]

how about a dicks racing taper bored and divided lectron

 

[Watky]

Rockdancer, I found that needle at clip 3 with the 5 slide needs the half clip washer for winter. As 1 full clip movement sends it to rich.. clip 3 for summer should run well. Ive also got the next half clip richer rm neddle but never got to try it yet.

 

[rockdancer]

Thanks Darin - For some reason this bike likes larger main - top end runs looked lean - I was even running a 490 with 125 and it was good
but with your needle I will look into it again
My Cr 144 - was 450/460 main
Watky - you still riding? - PM me for a ride sometime
sorry for de-rail

 

[dartyppyt]

RD,
Then stay there on main and use 1/2 clip shim.
Don't go up slide number wise then cause you add more air.

 

[Caferacerman]

Interesting Dyno run posted by Watky - the best I could get out of my 36mm Lectron was 28hp as noted by the attached Dyno report. The 22hp was the baseline out of the box and we spent two hours getting it to 28hp at which point we finally hit the recommended Air:Fuel ratio. Lectron analyzed the carb and aside from recommending that I move to a 38mm, they never were able to pinpoint why the horsepower was so low. Again, their customer service is awesome and they replaced the 36mm with a dyno tested (i believe all of their carbs are dyno tested btw) 38mm and I was going to put that on a Dyno and compare it to the Mikuni but then my son posed a valid question: Why are you willing to spend $1,000 on a carb and Dyno tuning when the Mikuni is performing? Again, I totally get the attractive features of the Lectron, i.e. altitude changes, weather conditions, it is easier to turn a rod than replacing a jet, etc.

In order to assist the members in selecting the correct Lectron right carb to meet their application, i.e. 36mm, 38mm and since Kelly has access to all the carbs, perhaps we could get him to run a couple of side-by-side comparisons so others can avoid my mistake and order the correct Lectron?

 

[firebolter]

I totally get the attractive features of the Lectron, i.e. altitude changes, weather conditions, it is easier to turn a rod than replacing a jet, etc.

I think for most folks, your comment is the main reason we buy and use Lectrons, the good function of the fueling in very varying conditions without the need to re-tune. I don't think that a Lectron will out perform any properly tuned carb of any flavor IRT horsepower when those carbs are tuned right. And for true racing where you need as much power as you can, a properly jetted carb can get you there. In my experience and testing with my 300 berg, using my PWK with the JD jet kit flat rips. The mid range to top transition is harder hitting and more explosive than my Lectron and that is fun! But the Lectron gives me a more electric like, linear power band and transition and that (for me anyway) makes woods riding easier and more consistent. I like the way the Lectron pulls down low as well. Plus I am just lazy and like not having to tune for season changes. I think a lot of people see the Lectron posts and read into them that it is the end all be all, it is not. It offers good fueling and good compensation for the environment and for guys like me, that is it's worth. I mean I go from Maryland to Colorado and adjust the power jet 1/8th of a turn and ride. That is worth it's weight in gold to me.

 

[Motosportz]

Lectron has won many carb dyno shootouts and is run on countless high HP race motors. There were markets under Fast by Gast and and well known in the drag racing circles as the fastest carb. That said we went another direction with them and make them so they would work great on dirtbikes, provide smooth power and great MPG will being easy to live with as they are very tolerant to temps, elevation and water. If you type "Fast by Gast lectron" you will find endless drag carb installations. Its simply that we are not setting them up for max power we are setting them up for real world runnability. If you want a 42mm carb and run race gas we can impress with dyno HP numbers.

 

[Caferacerman]

"Its simply that we are not setting them up for max power we are setting them up for real world runnability. If you want a 42mm carb and run race gas we can impress with dyno HP numbers."

Exactly Kelly - and you should be commended for the time and effort expended in working with Lectron to develop a staid and predictable carburetor. My point is that if I would have had access to the Dyno charts, I would have immediately recognized that the Lectron was not going to prove to be useful in my race applications, i.e. Flat Track, Hare Scrambles, and Motocross. Frankly, the Dyno charts would probably help you out as well as I do not believe you would have advised me to continue working towards meeting or exceeding the Husqvarna factory HP claims via the 36mm or 38mm if in reality it should have been a 42mm.

In essence, you are stating what I discovered via a very expensive exercise.

 

[Watky]

So essentially both the recomended lectron carb sizes for the 125/150 engine severley restrict the top end power of these little engines in favour for better low - mid runability?
That dyno of my bike with stock jetting and a miss aligned pv shaft looks to have a better af ratio apart from the lean area as the pv opened..

 

[Motosportz]

So essentially both the recomended lectron carb sizes for the 125/150 engine severley restrict the top end power of these little engines in favour for better low - mid runability?

No. Many people report a lot more top end.

 

[justintendo]

different application but just adding a lectron 38 to replace my well tuned tmx38 helped top end performance noticeably on my 360. same pipe used both carbs..if a lectron is known to lose power anywhere its just off throttle. anywhere else it pulls harder/crisper/cleaner. this is a welcome feature on a 360 as now its much more manageable but always spools up when desired. just my experience with it so far. much easier to be aggresive with wheelies as it has strong power but very controllable...with the tmx no matter what it always wanted to just explode when the throttle was opened.

 

[shotgunscott]

I have a 2010 yz125 with a 38mm lectron on it and love it.
The bike flat rips on the top end where it didn't with the Mikuni carb on. The Mikuni had a bog just slightly off idle and went flat on top. I jetted all over the board and used after market jetting kits. I could get it to run good on the mid to top, but could never get the bog out or get it to really run out.
Put the Lectron on and found that the out of the box setting was a little rich. Turned the metering rod 1/2 turn and I now have a bike that seriously moves.
It no longer has the bog as before and it pulls harder in the mid and top end.
I live at an ORV park and have an opportunity to ride a lot of bikes and also have the opportunity to let people try out bikes that I own. I have yet to have someone come back from riding my 125 on either the track or the trails and say that it lacked any power or the ability to rev and respond quickly.
During this last weekend I held a race that consisted of moto track and some wide fast woods sections. Conditions were wet so the track was a little muddy.
I rode the 125 and did not have any problems pissing off guys riding 450's as I was passing them on my 125. At the end of the day I let a few of the 450 guys take a spin on the bike and judging their reaction I'm pretty sure there were a few Lectron's and 125's sold this week.
Bottom line for me is, Lectron build very good power all through the RPM range, get great fuel economy, self adjusts excellently to atmospheric conditions, and really show cases the potential and power of a small bore 2 stroke. Works for me.

 

[Caferacerman]

Great to hear about everyone's successes with the Lectron - I truly am. Just the same, i would be very curious to see a couple of Dyno charts of list members that installed them on Husky 125/144s. Great to hear success stories on Yamahas and 360s, etc. and I am very happy for you. Albeit the proverbial 'seat of the pants' is always a great measurement of satisfaction, I would still be very curious to see a couple of Dyno charts from the Husky 125/144 guys.

 

[Motosportz]

BTW customer Scott above is a 2 time, time keeper enduro champ, lives on and runs a MX track and off road area used for WORCS racing and is very fast. He has piles of bikes and lives and breaths motorcycles, just for reference.

 

[Caferacerman]

Excellent - great to hear. Sounds like he is an accomplished racer and an enthusiastic off-roader and I truly wish him the very best.

In order to deter this thread from becoming an infinite loop of testimonials, please note my ask: If anyone is running an Italian Husky 125/144 with a Lectron and you happen to throw it on a Dyno, I would welcome the opportunity to view your graph. Not debating, not degrading, not accusing, just simply interested in seeing someone's Dyno graph. With the wealth of Lectron fans, somebody, somewhere, must have thrown their bike on a Dyno just for fun?

Thanks guys - enjoy the ride.

 

[jmetteer]

I have a 125 and 144 both with lectrons...

Who wants to pay for some dyno time?

I really don't care how much power they make on paper, they work awesome.

Later,

 

[Caferacerman]

Lol....OMG.....let's try again....

• Son, 2012 CR125, First In State Open Class, Flat Track.

• Collective wisdom of list advises purchase of Lectron to gain more horsepower.

• Install Lectron, went from first place to last place.

• Leveraged Seller's and List's "seat of the pants" tuning recommendations to no avail.

• PER ADVICE OF LECTRON, took bike to noted Lectron tuner with a Dyno.

• Results denoted out-of-box tuning at 22 hp with poor air/fuel ratio, ultimately found 28 hp.

DO I WANT TO RUN A LECTRON? YES!
WHICH LECTRON DO I WANT TO RUN? THE ONE THAT DELIVERS MORE HORSEPOWER!
The wealth of testimonials drove me to purchase the Lectron but they are not helping me to identify the correct model and tune to gain more horsepower. First I was sold the 36mm and then the 38mm and now advised to buy a 42mm - not sure if that would fit btw.
In summary, please show me what carb you used and the tune to increase your performance so I can replicate it****************************************
To be crystal clear, the intention of the thread is not "Lectron sucks..." but rather "Help me make my Lectron sing..."