Description
ARC Flywheel for GX390features: – SFI Certified – 2.85 Pounds – 3hp Diameter – 5 3/4″(Stock Flywheel size for the GX390 is 7 3/4″) – Finless – ARC’s signature indexed adjustable hub which allows easy timing / ignition changes – Timing adjustments from Stock (25deg.) to 39deg. BTDCusing the stock crank key – Powerful Earth magnets* * Quick Power * * Drag Racing * *Use ARC 5980 coil bracket for non-UT2 coils
