Hard starting TLE 43

Discussion in '2-Stroke Engines' started by duivendyk, Jul 19, 2008.

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  1. duivendyk

    duivendyk Guest

    My Mitsubishi TLE 43 takes close to 10 pulls to come to life,wether on the choke or not,which at 80+ degrees makes little sense.Otherwise it runs fine.I use the starter bulb religiously so that can't be the problem.Apart from the aggravation,I am concerned that I'll wear out the recoil start.Has anyone had a similar experience ?
    I've had many 2 strokes over the years,but never had starting problems like this at normal temps.These all had battery ignitions. Could it be that the magneto ignition has something to do with it?,seems unlikely.
    I am tempted to try the "Jemma" approach,adding some nitromethane to the gas and see if that has the same dramatic effect as she reported.Is there any downside to doing this?
    Last edited by a moderator: Jul 19, 2008

  2. BSA

    BSA Guest

    Is your exhaust free from excessive carbon buildup

  3. Mountainman

    Mountainman Active Member

    Seems like this could be a gas problem -- unless your spark is weak -- have taken small engines with weak spark -- cleanned the part or parts embedded in the magneto that generate the spark -- great improvement in spark at times -- not good having to pull that cord so much -- I don't like replacing them.. Happy riding from - Mountainman
  4. duivendyk

    duivendyk Guest

    Tried reducing plug gap some,only 4 pulls,that's more like it!!.So there seems to be something to weak spark hypothesis.Magneto output proportional to (cranking) rpm !.Hard to check in open air,need widen gap to produce meaningful eqvt. conditions,how much?,good question.Subaru engines have clever scheme to limit pressure when cranking,higher speed& easier firing and are easy to start.
  5. 5-7HEAVEN

    5-7HEAVEN Guest

    Are you squeezing the priming bulb under the carb before starting?

    I also have a sle43 and a Subaru. I always thought the Subaru was easier to pull-start because of less compression. My SLE MIGHT start on the 2nd pull, and most likely will start on its 3rd attempt.
  6. loquin

    loquin Active Member

    I had left gas w/o stabilizer in my TLE43 for several months once. (Following knee surgery.) It was hard starting until I cleaned the carb.
  7. Mountainman

    Mountainman Active Member

    soooo adjusting your spark plug made some improvement.... Very interesting..... As mentioned above -- maybe some -- fresh gas and a new plug ??? Please let us know what you did -- once repaired and running strong... Happy Riding from - Mountainman
  8. SirJakesus

    SirJakesus Guest

    3 or 4 pulls from dead cold should be good. But I would change the plug and clean the carb, air filter and gas. Maybe run some stabil through it to clean it out before you go through the trouble of tearing the carb apart. Mine takes 2 or 3 pulls to start if its been sitting a week. After that its first pull all day.
  9. duivendyk

    duivendyk Guest

    You mean hook up carb fuel intake line to source of stabil and operate bulb to clean out carb?
  10. Warner

    Warner Member

    My new TLE43 usually starts on the first pull after priming and choking it. If not the first pull, it will ALWAYS start on the 2nd pull.

  11. JemmaUK

    JemmaUK Guest

    I wouldnt use NM to be honest - it seems that it might have hurt my engine - its suddenly today gotten smokey (blueish and very wispy) and the plug was completely black - but not wet black a sorta fluffyish dry black...

    It *might* have been because I moved the seat down and this caught on the throttle cable and screwed the idling up - im not sure - any one got any thoughts

    I have cleaned the plug off and rerun the engine for a little while and it doesnt seem to be fouling the plug again but the engine is still a little smokey :(

    Just hope I havent wrecked it - and more to the point if I need to get rid of the rest of the fuel what on earth am I going to do with it?

    Jemma xx
  12. duivendyk

    duivendyk Guest

    Looks like engine is running cold,NM has a high heat of evaporation,cooling things down inside cylinder,seems highly questionable to me that such a low concentration could have adversely affected anything.You could mix it in with petrol in a car,diluting it further,it's only 2% to begin with I believe.