Round two of the "other" carb types - Lectron

[454x]

Don't you have a smart carb?

 

[tuxedo dave]

I have both but this is the Lectron that i've been using.

 

[454x]

Well i've run the carb for 3 rides now first ride too lean and second too rich so put the rod in the sweet spot and went for a nasty gnarly ride tonight at Mcnutt if anybody on here is familiar with it?I also opened up the power jet from 1 turn to 1 3/4 turn and instantly noticed an overly rich lack of power feel as soon as i gave it some throttle so turned it back to the original 1 turn and felt much better.My bike is a ktm 200 with a modded head producing 220psi and when the bike worked hard i was getting your typical decal knock associated with high compression heads?I thought these metering rod carbs were suppose to atomize the fuel so fine that this wouldn't happen?Any thoughts on this?Apart from the harmless knock which is more annoying than anything else it ran very strong yet smooth.

Did it do the same thing with the Smart Carb or stock carb?

 

[tuxedo dave]

Stock yes but smart not as bad.I just replaced the head with a modded head i had done up for me that only produces 190 psi instead of the 220 so i'll give that a go and should get rid of it.I know i'm jetted perfect by how perfect my plug looked after the last ride.The tuner that did my new head said at 220 it would be very hard to loose the knock with out 50/50 mix with av gas.

 

[lankydoug]

Stock yes but smart not as bad.I just replaced the head with a modded head i had done up for me that only produces 190 psi instead of the 220 so i'll give that a go and should get rid of it.I know i'm jetted perfect by how perfect my plug looked after the last ride.The tuner that did my new head said at 220 it would be very hard to loose the knock with out 50/50 mix with av gas.

Trying to fix a problem caused by too much compression for poor quality fuel by changing carburetors makes no sense. Raising cylinder pressure makes more torque/horsepower but also requires better fuel. If you have to de-tune it to keep it from knocking then why do the mod to begin with? I'm puzzled why anyone would spend a thousand dollars on mods and then cheap out on fuel trying to save a few dollars. BTW there are dozens of other reasons why race fuel is worth the extra money besides preventing knocking but it would take dozens of paragraphs to explain and has already been addressed in various fuel threads.(which I recommend you read)

 

[tuxedo dave]

Well i bought the bike with the head already on it for your info so i had a proper head done up for it now.As for changing carbs to solve this problem was not my intensions at all it was to see how these metering rod carbs perform.Sorry for striking a nerve there Doug and as for the reading i think i'll just stick to my poor quality fuel and cheap out?

 

[lankydoug]

Well i bought the bike with the head already on it for your info so i had a proper head done up for it now.As for changing carbs to solve this problem was not my intensions at all it was to see how these metering rod carbs perform.Sorry for striking a nerve there Doug and as for the reading i think i'll just stick to my poor quality fuel and cheap out?

If your KTM is in stock form and is between 2000-2012 then it requires RON 95 or PON 91
http://www.ktm.com/uploads/tx_downloadsplugin/Kraftstoffempfehlung_02-2012_EN.pdf

You said; "My bike is a ktm 200 with a modded head producing 220psi and when the bike worked hard i was getting your typical decal knock associated with high compression heads?I thought these metering rod carbs were suppose to atomize the fuel so fine that this wouldn't happen?"

My answer is buy better fuel because it's not ok for any engine to knock.

No nerve struck here I'm just trying to save you from hammering out a piston, ring or rod bearing.

 

[Coffee]

Hmmm.... this thread is about the Lectron, and it is located here:



Would it make sense to start new threads for the non-Husqvarna bikes and problems not directly attributable to the Lectron on a 2st?

If for no other reason to make this thread useful for the people who may be interested in Lectrons on 2st? Gets a bit confusing when there are other bike related issues, and non 2st's are being discussed...

 

[duey]

I've only run cooler temps with mine anyone gone from 30-40 temp difference without adjustment

 

[Motosportz]

I've only run cooler temps with mine anyone gone from 30-40 temp difference without adjustment

i have, 28 to 60 no issues. 50-2700 feet too.

 

[uranys]

I've ridden mine from 25 to 65 at the same elevation with no adjustment (didn't even change the idle!) and no issues. A little less crisp in the cold maybe, but still ran fine.

 

[firebolter]

so far I've ridden in as cold as 11 degrees and and high as 60 degrees, but not in the same day. Worked great though and I have no adjusted it since the first ride.

 

[Motosportz]

I slapped the original Lectron for my 125/165 on my loaner RM125 this weekend and took it for a short test ride. Runs great, far better than the stock carb, no adjustment.

 

[wallybean]

While down south temps varied from 45-75 and elevation from 900' to 6500'. Ran perfect through that variation.

 

[boisedave]

We were at 40 degrees in the am and 70 during the day. Altitude when from 3000 to about 5500 -- no jetting related issues at all. The best thing is that there was nothing to worry about. Idled nice all day -- ran strong. Very smooth. Confidence inspiring. Really like it. The only time I noticed anything other than optimal was after folling my kiddo around for an hour in 1st and 2nd it took me about a few seconds to clean the bike out. Other than that -- flawless.

 

[duey]

Thanks everyone winter's dragging along upper miss.river bluffs won't be long before humity returns

 

[Blakelpd5]

While down south temps varied from 45-75 and elevation from 900' to 6500'. Ran perfect through that variation.

That elevation pretty much covers everything I plan on riding. Although, I'd love to hear an update if you go higher! (10k?)

 

[wallybean]

It will only be another 2 plus months before we go that high.

 

[Pedec]

Where will you ride at more than 10k. Just wondering.

 

[wallybean]

We have a couple of rides that pass through 10K. They are actually mid-July rides.