You can get a compression gauge at your local auto parts store for around $20 or $30. The compression should test out to be at least 85 or 90 pounds but probably less than 100 psi.
Waxaad ka heli kartaa eeg riixo ah ee xaafaddaada dukaanka qaybo auto ilaa $ 20 ama $ 30. riixo waa la tijaabiyey in ay ugu yaraan 85 ama 90 pounds laakiin malaha ka yar psi 100.