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Thread: Fixing an idling issue

  1. #31
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    Quote Originally Posted by Kart43 View Post
    Yes and it could be configured to read incorrectly. I am not familiar with MyChrons but there usually is a 2 stroke 4 stroke setting. You want 2 stroke if it is the same as an Alfano.
    Why a 2 stroke because of an Alfano(what is an Alfano)? Shouldn't it be set for 4 stroke?

  2. #32
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    I would guess your mychron reading are being cut in half. If you were only at 700 it would certainly stall. Check your settings

  3. #33
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    Quote Originally Posted by TheLurker! View Post
    I know nothing about these engines but remember reading thishttps://karting.4cycle.com/showthrea...206-won-t-idle
    Thanks for posting this. I was advised to change the c-clip. It was towards the bottom, and moved it to the second from top.

  4. #34
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    Realize that getting it to idle smoothly doesn't mean that it's necessarily going to make the best power and accelerate the fastest.
    Thank You to the 2017 206 Cup Grand National Champions for choosing Faster Motors
    Cayden Fretwell Sportsman Class Champion
    Emily DeMaster Junior Class Champion
    Grant Zimmermann Senior Heavy Class Champion
    Randy Raridon Masters Class Champion

  5. #35
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    Quote Originally Posted by Jimbo View Post
    Realize that getting it to idle smoothly doesn't mean that it's necessarily going to make the best power and accelerate the fastest.
    I want power and speed. That's why I'm trying to get it to the point you suggested, at a minimum of 2000 rpm's. I'll have to go take a look at the settings on the mychron tomorrow and make sure everything is correct. I do have another question for you, when you say "the clutch is engaged", what exactly do you mean by that? Do most racers move that c-clip up on the needle?

  6. #36
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    Quote Originally Posted by gary10 View Post
    I would guess your mychron reading are being cut in half. If you were only at 700 it would certainly stall. Check your settings
    Yeah, I'm going to take a look at the mychron tomorrow. If it is being cut in half, then where I'm at now reading 1300-1400 should be good.

  7. #37
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    You had it idling at 700 RPMs? Most if not all engines will die when the idle is turned down that low. Your Mychron must be wrong. Make sure your Mychron is set for RPM factor X1.

  8. #38
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    A lot of people with the LO 206 don't use a Mycron.
    They know the max rpm is going to be 6050 so they gear the engine for their track accordingly.
    Another way to set the idle is to turn the Mycron off and set the idle where it sounds good and not starting to engage the clutch.
    Since you don't have a dyno if you want max performance you will have to set the slide needle and idle mixture where you get the best lap times. Then you may have to deal with idling as a secondary concern.
    Thank You to the 2017 206 Cup Grand National Champions for choosing Faster Motors
    Cayden Fretwell Sportsman Class Champion
    Emily DeMaster Junior Class Champion
    Grant Zimmermann Senior Heavy Class Champion
    Randy Raridon Masters Class Champion

  9. #39
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    Thanks for the info about the mychron setting. I will check on this. Here's a really dumb question, when I start the engine, it's idling and the chain is spinning and the wheels are turning. Is that supposed to be happening or is it just supposed to be the engine running until I hit the accelerator pedal. I might have to check into getting this engine dyno tuned.

  10. #40
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    If you push the brakes, the wheels should stop easily unless you have the idle set too high. Once they stop, you normally can hold the wheel still with a slight touch of your hand. If it continues to turn, it's idling too high. Or you have the incorrect clutch springs installed.

  11. #41
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    The clutch shoes will touch slightly and make the wheels turn

  12. #42
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    Quote Originally Posted by 01ron View Post
    You had it idling at 700 RPMs? Most if not all engines will die when the idle is turned down that low. Your Mychron must be wrong. Make sure your Mychron is set for RPM factor X1.
    That was the problem. Changed it to X1, problem solved! I've got the rpm's set at 2700-2800.The clutch would only occasionally engage at that rpm level. I could always turn it down a hair. Thanks to everyone that responded with help and advice, I really do appreciate it. My knowledge level has increased tremendously just in about the last 2 months from people on here giving me help. It's amazing how different the kart seems to me now that I understand things better, and I'm sure there's alot more that I don't know. I'll figure that out when I come across it. Hopefully this rain passes soon so I can get to the track and start running some laps.

  13. #43
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    That's too high in my estimation. Too close to clutch engagement. I set mine at no more than 2000 cold and it normally will settle in at about 2200 when warm.

    Last thing I want to happen to my driver is to come into the pits and have the clutch locked up and the kart not want to stop. I've seen this happen before!

  14. #44
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    Quote Originally Posted by 01ron View Post
    That's too high in my estimation. Too close to clutch engagement. I set mine at no more than 2000 cold and it normally will settle in at about 2200 when warm.

    Last thing I want to happen to my driver is to come into the pits and have the clutch locked up and the kart not want to stop. I've seen this happen before!
    At that setting, the clutch was barely engaging, if at all. I can turn it down to around the 2500 rpm mark. That should be ok.

  15. #45
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    You might just want to ignore the tach and set the idle where it sounds good.
    Thank You to the 2017 206 Cup Grand National Champions for choosing Faster Motors
    Cayden Fretwell Sportsman Class Champion
    Emily DeMaster Junior Class Champion
    Grant Zimmermann Senior Heavy Class Champion
    Randy Raridon Masters Class Champion

  16. #46
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    Quote Originally Posted by Jimbo View Post
    You might just want to ignore the tach and set the idle where it sounds good.
    Jimbo, I had the kart at the track today. I ran laps all day. The kart ran real good. No problems all day(knock on wood). Do you have any other tips or advice to dial in the kart and the engine to make it run at its's best?

  17. #47
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    Seat time, Seat time, Seat time!!
    Chassis set up, Chassis set up, Chassis set up.
    Tire Knowledge, Tire Knowledge, Tire Knowledge,
    Thank You to the 2017 206 Cup Grand National Champions for choosing Faster Motors
    Cayden Fretwell Sportsman Class Champion
    Emily DeMaster Junior Class Champion
    Grant Zimmermann Senior Heavy Class Champion
    Randy Raridon Masters Class Champion

  18. #48
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    There ya go! You have a mycron , start recording your lap times . Write date , time , temp , humidity down the your fastest and slowest laps . Then you can tell if your getting faster or slower . Don't change anything till you get a couple sessions in for a base line . Then try different lines . Then maybe air pressure. Last chassis adjustment . Document each change so you know what's what.
    Last edited by flattop1; 05-26-2018 at 01:17 PM. Reason: Predicted text

  19. #49
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    All good advice for sure. Some choose not to make adjustments until there's repeatability in lap times. Seat time IS the best advice one can offer.

  20. #50
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    Thanks for the replies everyone. I am trying to get as much seat time as I can now. Hopefully I can get up to GoPro soon and run some laps there.

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