Industrial Engines > Service & Support > FAQ
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My Subaru/Robin engine is not electric start, but I’d like it to be. Do you sell a kit so I can make mine electric start?  
No, we do not sell a conversion kit. Most of the time is not economical to purchase the necessary parts to make the conversion. The parts required would include a new ring gear equipped flywheel, a starter motor, solenoids, switches and wiring. Also, some engines are not machined to accept the starter or mounting hardware. Another factor to consider is: do you need to have a battery charging circuit? If so, this would require more special parts, including alternator, flywheel and regulator, along with more wiring.

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How do I register my new Subaru/Robin Engine Warranty?  
You are not required to register the engine to be covered. If warranty service is needed at any time during the warranty period, you have to present the original copy of the receipt or invoice that you received at the time of the product purchase. This will have to be presented to the servicing dealer, when engine/machine is brought in for repairs.

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How often should I perform oil changes?  
The oil should be changed every 100 hours to remove potentially harmful sludge. The exception is when the engine is new — the oil should be changed after the first 20 hours of use to remove assembly lube and the metallic particles created during initial break-in.

The 100-hour interval doesn’t mean that daily checks should be skipped. The engine oil should still be checked before each use. This is especially critical because the oil also acts as a coolant in air-cooled engines.


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Do I need to adjust my engine maintenance routine based on the outdoor temperature?  
Yes. Operators should check and change the oil more frequently in hot weather. The heat should also be factored in when choosing oil viscosity. Make sure dirt is not obstructing the engine’s cooling mechanisms, and absolutely DO NOT attempt to cool a hot engine with water — the temperature difference can cause serious damage.

Oil viscosity is also important in cold weather. If its gets cold outside before you can adjust viscosity, move your machine to a warm, well-ventilated space before starting the engine or changing the oil. Keeping the fuel tank full and the battery well-charged will also help prevent potential problems with the cold.

Altitude is another environmental circumstance to be aware of. The engine may need some simple modification when working in altitudes over 5,000 feet.


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When an engine’s life cycle has ended, can it be rebuilt or should it be replaced?  
Replacement is usually the most ec onomical choice for engines under 10-horsepower, depending on the time required for repairs and the cost of parts and labor. Purchasing a new engine is often less expensive when considering how time intensive it can be to rebuild several worn components. However, if a newer engine’s components have not been damaged, simply replacing the block may be a less expensive option.

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What are the important considerations when selecting an engine?  
The engine is critical to the life cycle of equipment, so durability is a key consideration. A good engine should have an efficient air cleaner and a dust-proof carburetor as backup in case the air cleaner clogs. Heavy-duty parts won’t wear as quickly, so an engine with a cast iron cylinder liner, steel alloy components and ball bearing support of the crankshaft will naturally last longer than a unit primarily built with aluminum and plastic. And since operators often overlook basic maintenance items like oil checks, a low oil sensor is also an important feature.


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