This can occur if the unloader is stuck or adjusted too high, gasoline flow is impeded, the engine has been throttled down or the carburetor needs cleaning.
Steps to take:
- If your unit is under warranty take it into the nearest Campbell Hausfeld service center. If it is not under warranty you should take it into the nearest service center for evaluation or call Campbell Hausfeld Technical Support at (800) 543-6400.
- If it can be determined that the issue is associated with the engine, please refer to your engine manufacturer's manual or web site; or contact a local service center or small engine repair shop.