Reply To: Bike doesn’t have power – Hyosung GT125
Compression test done (with a flex tubem didn’t have the metal type near me)
Front Cilynder: 90 PSI (6,4 kg/cm2)
Rear Cilynder: 91 PSI (6,5 kg/cm2)
Check valve clearence and everything checks okay in both cilynders (done it previously to warming up the engine)
What does that mean?
Do it 1 more time again, and this time try:
- Pour a little tiny oil inside front and rear intake pipes for the carb, so that oil goes in the cylinders , then see if compression is improved ?
(piston rings or possible slight damage to cylinder walls of the piston cylinder) - Try to get it done with a “metal pole” as it is far more accurate , flexi-hoses have always given me mixed results (sometimes good, sometimes bad) , so i always try to use a metal pole.