new motor

Discussion in '2-Stroke Engines' started by gauge, Oct 3, 2007.

  1. gauge

    gauge Guest

    ight guys i got mu new dax 70 sent to me i put her on started her up and she runs smmother but with 3 miles on her she pulls harder than my old 70 with i186 miles . but all i sent dax was the blown motor THATS IT I BOLDTED MY OLD CARB AND EVRY THING ELSE UP AND THS NEW ENGINE HATES IDLING AND I THINK I HAVE A INTAKE LEAKwhen im on the throttle and i let off it keeps going for a few seconds and hold high idel and when i floor it ,it will bog , my old engine never did that and i even put the needle on the 4th slot wich is the richest setting and the pluug is barley bron and not oiley considering im breaking this one in o a 16;1 oil gas mix, i also sprayed the intaek with starting fluied when i had it runnig it and the idel went up so i know its the intake gasket any ides what i should do , maybe liquid gasket , sorry fro this long 5 paragraphs
     

  2. azbill

    azbill Active Member

    use gasket material (from any auto supply)
    also use a sealer (I use permatex copper)
    my intake is on second bike and second engine (swapped cylinder, piston & rings)...still no leaks :D
    there are numerous threads dealing with gaskets here do a search and add to an existing thread
    (let me know and I will delete this one)
     
  3. gauge

    gauge Guest

    but azokronic do u think that all it is is that intake gasket i dont get that cause its brand new and no rips or tears but anyhow i do have rtv copper and i made a new intake gasket
     
  4. azbill

    azbill Active Member

    you could try checking the carb is sealed to the manifold as well
    they tend to leak through the slits on the side of carb
    I use a rubber o-ring inside the carb to seal it
    if you go that route, push hard on carb when tightening so it makes a good seal
    good luck !
     
  5. gauge

    gauge Guest

    allright the new gasket is in and dry and this hi idel is still rolling im realy mad im going on vaction tomarow so can anyone help me i neednthis fixed by tonight!!!!!
     
  6. gauge

    gauge Guest

    Ok Id Die Cheack The Seal And Every Thing Its Still Has This Hi Idel **** And Bogs Real Bad And The Carb Is Set On The 4th Clip And The Plug Is Brown And Drie But That Peratax Cooper I Use Has Me Wondring If It Will Hold Up To Gas On It , Wont It Deterate
     
  7. gauge

    gauge Guest

    im going on vacation at 3;00 tomar with the bike so will see if she goes or blows
     
  8. gauge

    gauge Guest

    ight guys im back from vactaion the bike is still runnig :p but that permatax copper gasket didnt hold up the intake is still leaking :-x should i make my own gasket ouf of cearal box cardbord or wat
     
  9. minibiker

    minibiker Guest

    did you let the permatex set for a while i usually go with 6 hrs on mine. my brothers has the problem with revving after you let off the gas and pull in the clutch its like the throttle is sticking but ive looked and it isnt
     
  10. gauge

    gauge Guest

    i let that permtex sit for 24 hrs and basically it reves by itself i have the needle on the 4th postion and also 2 warshers under it and the plug is no wet does tha tell u something is wrong lol, but this engine makes more noise like the piston doesnt have a close tolerence comparing it to my other 70 and bascally runs rough at low rpm at steady throotle until u hit the powerband then it smoothens out
     
  11. minibiker

    minibiker Guest

    try spraying starter fluid (with the fancu nozzle) around all the gaskets if it acts differently (dies or revvs) you have a leak and need new gaskets also check your plug gap i keep mine at .035 and it works good for me
     
  12. azbill

    azbill Active Member

    is this engine still under warranty ?
    it seems to be giving you a lot of probs
    if still warrantied, I would ask for a replacement
     
  13. gauge

    gauge Guest

    yea it still warentied i get the worst luck basicalyy its the gasket ill try making one if not ill tell dax and ill be on my third engine WOWOWOW
     
  14. gauge

    gauge Guest

    well the new gasket works better but ive been hering a hissing noise comming from so were and im seeing oil seeping thourgh the top of the heads cooling fins is make a high pitched sound like a turbo only at idel at speed i cant hear it cause of my CHAIN
     
  15. azbill

    azbill Active Member

    is the plug tight enough ?
    also check the head bolts
    no other place oil can come from up on top
    (unless the head is cracked)
     
  16. gauge

    gauge Guest

    yep plug is tight headbolts r tightand there no oil around the gaskets idk were its goming from
     
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