05-04-2020, 08:48 AM
Hi KK, first your video's are unavailable for me; it says it's a private video.
The clip is also very short and does not show more than two positions, if you want to show a fault it needs to be held for at least 20 seconds steady in one position and moved around the entire engine and make it possible for us and other viewers to see where the noise comes from from.
So we have eliminated the exhaust seals and you mention the disconnected sparkplug cap ( it's not a solinoid, they are under the tank ) makes the sound go away.
That tells me that it is not a ticking valve or injector but has to do with the ignition or the combustion inside the cylinder.
It sounded like a sharp spark sound to me but was difficult to determine from the short video.
if you connect another external spark plug to the no4 cylinder ignition cap and ground and it produces the sound again it is likely the sound is produced inside the cap, it could be the ignition wire has been pulled out of it's original position.
To measure if this is the case you need to unplug both ignition caps from the spark plugs and measure between the no1 and no4 ignition cap electrical terminals with a universal meter on the k ohm scale and measure the resistance, see what the value is and repeat this for the no2 and no3 ignition caps, if the values are not the same the connection has been lost somewhere.
The Honda system uses one coil for cylinders 1 and 4 and another coil for cylinders 2 and 3, the spark plugs are connected on either side of the coil.
The clip is also very short and does not show more than two positions, if you want to show a fault it needs to be held for at least 20 seconds steady in one position and moved around the entire engine and make it possible for us and other viewers to see where the noise comes from from.
So we have eliminated the exhaust seals and you mention the disconnected sparkplug cap ( it's not a solinoid, they are under the tank ) makes the sound go away.
That tells me that it is not a ticking valve or injector but has to do with the ignition or the combustion inside the cylinder.
It sounded like a sharp spark sound to me but was difficult to determine from the short video.
if you connect another external spark plug to the no4 cylinder ignition cap and ground and it produces the sound again it is likely the sound is produced inside the cap, it could be the ignition wire has been pulled out of it's original position.
To measure if this is the case you need to unplug both ignition caps from the spark plugs and measure between the no1 and no4 ignition cap electrical terminals with a universal meter on the k ohm scale and measure the resistance, see what the value is and repeat this for the no2 and no3 ignition caps, if the values are not the same the connection has been lost somewhere.
The Honda system uses one coil for cylinders 1 and 4 and another coil for cylinders 2 and 3, the spark plugs are connected on either side of the coil.