Engine Trouble engine bad noise

Discussion in '2-Stroke Engines' started by welshlad27, Jul 26, 2015.

  1. welshlad27

    welshlad27 New Member

    hi guys new here so bare with me ,im on my 2nd bike build 1st engine was fab even tho it was the 66cc from china

    my new kit turned up fitted to bike no problems started bike let it tick over for 10 mins to warm up etc,took it for a test drive and engine made a whining sound and the faster i got the louder it got ,this does it wen rideing and standing still if u rev it,when ticking over u can still here it,
    things ive checked

    took head of and barrel and piston out ,tried to move crank shaft and very stiff so striped complete engine ,cleaned it all out checked bearings all seem ok ,the problem i found is wen u fit casing back on and tighten it bk up the crank shaft goes tight till i let of the screws a bit

    anyone shed some light pls