No Speed!

Discussion in '2-Stroke Engines' started by Fishinglie, Nov 1, 2007.

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  1. Fishinglie

    Fishinglie Guest

    Hey guys,

    I'm officially stuck. I have an 80cc motor that seems almost like it could be getting to much fuel i don't really know. I have checked the fuel filter. I have replaced the spark plug. I have Re sealed all the gaskets.

    I hit a point and it'll act like it's bogging down. If i hit a slight down hill it'll kick over and pick up speed. Could this be a muffler problem? I have done everything i can find/research wise.

    Any help will be greatly appreciated.

  2. azbill

    azbill Active Member

  3. Fishinglie

    Fishinglie Guest

    Yes, It was on the second and i moved it down to the third and it just boggled down and had no speed. I moved it backed to the second and it seems to be running a little better. How fast should you say it should go on an 80cc 42tooth? Any other suggestions?
  4. Alaskavan

    Alaskavan Guest

    Have you pulled the plug? What does it look like?
  5. srdavo

    srdavo Active Member

    Is your engine still on break in?
  6. Fishinglie

    Fishinglie Guest

    I'm almost through my fifth tank of fuel. The plug was black last week so i replaced it and sealed all the gaskets well and it helped a little. How much speed should i be getting? 80 cc on a beach cruiser. Sometimes my muffler rattles really loud at high speed. Should i replace?
  7. tfhudson

    tfhudson Guest

    There are a couple brackets inside your muffler that can come loose and rattle. It causes no real problem that I know of, other than the fact that it's really annoying. But make sure the muffler is not loose from the block!

    Someone else recently started a thread about engine lurching, but I dunno if it will help out. The fact that it gets better on the downhill perplexes me. An 80cc/42T/26" wheel should take you into the mid 30's mph.
    Last edited by a moderator: Nov 6, 2007
  8. Fishinglie

    Fishinglie Guest

    I went and ordered a new muffler just because it was annoying as **ll. SO i decided to take the one i have now apart and it has a kink right in the middle of the pipe. Could this have done any damage to my engine?
  9. Scottm

    Scottm Guest

    How in the world did it get a kink? I doubt it caused damage. Reminds me of a melted catalyic converter on a car. Just boggs down until replaced. I hope that was your problem.
    I have not noticed or located and Introduction post by you. Would you please be so kind as to do that for us in the "introduce Yourself" thread.
    Last edited by a moderator: Nov 6, 2007
  10. Fishinglie

    Fishinglie Guest

    I think it was manufactured wrong or something when i get back home i'll take a picture and post it. I ordered one from dax and i was told he sjips on tuesday so maybe i'll see it this week. Yes i'll introduce myself i have been waiting to get home to get my camera to put a picture of my ride also.
  11. Alaskavan

    Alaskavan Guest

    I think the restriction (kink) in the pipe may be part of the design. I think the idea is for the exhaust to exit the pipe into the chamber before the restriction (there are little holles in that portion of the pipe, no?, then exit the chamber back into the pipe after the restriction (more little holes in the pipe?) and on out of the muffler.

    You did not indicate whether you found loose brackets inside the muffler, nor whether the exhaust was well bolted to the motor.
    Last edited by a moderator: Nov 6, 2007
  12. Fishinglie

    Fishinglie Guest

    Nothing was loose! Usually there are two circle disc with pipe in between. Well when i took it apart mine had no top circle disc and it looked like the pipe had been cut. Maybe this could be the problem. I'm not to knowledgeable about this side of things. Could it be a shortage of back pressure?
  13. Scottm

    Scottm Guest

    Did you bike this motor new or used? Who would have cut it? Are you 100% sure it's the maffler rattling. My gas cap rattles and drives me insane, the clutch plate rattles against the cover, my chain guard lost a screw and rattles.
    Last edited by a moderator: Nov 7, 2007
  14. Fishinglie

    Fishinglie Guest

    I bought the motor new!I bought an O-ring for my gas cap adn that stopped that raddle. I made a new bracket for my chain guard and that fixed that raddle. I'm just wondering if the guy i bought it from on ebay packed a messed up muffler. as of now i used soem jb weld to hold the end back ontill i get the replacment muffler. When i get it i'll break it apart again and take some pictures. Right now i'm only going maybe 22-24mph full throttle. 80cc 44 teeth.
  15. drimpact

    drimpact Member

    An Intro with detail of your motor, not I bought it on-line, would go along way with this group! Almost all of us bought ours on-line.

    Who did you buy it from?

    have you contacted the seller with your problems?
  16. My neighbor bought a motor from Spooky Tooth, the exhaust also had a kink but it was also drilled multipule times before and after the kink...He's hit the big 40mph once or twice running a 32 tooth and 26inch wheel.............