BobRip
Elite Member
We have had complaints about problems with the Robin Subaru engines.
I would like this to be a thread that someone could use to quickly find a solution to an engine problem. Let's try to keep this to solutions that you are sure of and have personally tested. Here is the example format.
Problem #: 1
Problem: Engine runs on one cylinder, runs rough at all speeds and stalls when idled.
Safety Concerns: The spark on the ignition coil can give you a nasty shock. Handle with care.
Test: Run engine at medium speed. Pull one plug wire and see if engine stops. If it keeps running put that wire back and pull the other plug wire. If it stops there is a problem with the ignition on that side. Test for a spark by putting a screwdrive in the spark plug wire cap. Hold a portion of the screwdriver near a ground, crank the engine. If there is no spark then the ignition coil or wire is bad or the magnets are dirty. If there is a spark then check the spark plug.
Solution: I found a bad ignition coil. It was originally erratic but then failed completely.
I would like this to be a thread that someone could use to quickly find a solution to an engine problem. Let's try to keep this to solutions that you are sure of and have personally tested. Here is the example format.
Problem #: 1
Problem: Engine runs on one cylinder, runs rough at all speeds and stalls when idled.
Safety Concerns: The spark on the ignition coil can give you a nasty shock. Handle with care.
Test: Run engine at medium speed. Pull one plug wire and see if engine stops. If it keeps running put that wire back and pull the other plug wire. If it stops there is a problem with the ignition on that side. Test for a spark by putting a screwdrive in the spark plug wire cap. Hold a portion of the screwdriver near a ground, crank the engine. If there is no spark then the ignition coil or wire is bad or the magnets are dirty. If there is a spark then check the spark plug.
Solution: I found a bad ignition coil. It was originally erratic but then failed completely.