If your machine is performing poorly, starts hard, backfires, or has a noisy valve train, it may be time for a valve adjustment. The valves are timed to the piston movement by the timing chain and other components. If your valves are out of adjustment, the motor’s intake stroke, power stroke, or exhaust stroke may stop working correctly. Only available for 4-stroke Arctic Cat snowmobiles. Call 860-628-2728 for information on other equipment servicing.