This manual provides installation guidelines for mounting the Thunder Tiger PRO-21M-OB engine on a transom. It details specific break-in procedures recommended to ensure long life and high performance, including fuel mixture requirements and throttle settings during initial runs. A critical safety warning advises against operating the engine at high RPM without water load to prevent overheating.
| Engine Type | ABC-type engine |
|---|---|
| Break-in Fuel Requirement | 20% castor oil or castor/synthetic blend with no more than 10% nitromethane |
| Engine Height Adjustment Range | 8mm |
| Propeller Thrust Adjustment Range | 7 degrees |
No, because it is an ABC-type engine precision-made from quality materials; however, proper break-in is recommended for long life and high performance.
Fuel containing 20% castor oil or a castor/synthetic blend with no more than 10% nitromethane is strongly recommended.
No, operating the engine at high RPM without a load (boat out of water) can cause damage due to overheating from lack of cooling water.