Join Date: Sep 2007
Location: Melbourne, Florida, USA
I have had a problem that I posted previously about the bike losing power when hot. I checked the heat problem and I am confident that the cooling system is fine. Using a pistol grip thermometer, I found that after warm up, radiator temperature went from about 180 F at the inlet to 110-115 at the outlet. Seems more than adequate.
The other thing that people suggested was the pulse coils, but I have found that very confusing, so I need a little help to sort out the truth.
Pulse generator and pulse coils seem to be used interchangeably for this part, so I'll take that as true.
One forum said that the pulse generator is the same unit as the crankshift position sensor. Is that true? I replaced the crankshift position sensor (located under the timing belt cover) a couple of years ago and I'd be surprised if it's gone bad again, so I probably need to look for something else.
The shop I go to ordered a part (Honda OEM 36142-mg9-951), which is labeled a pulse generator. The parts schematic is attached to this post. This, apparently, is mounted on the back of the engine based on the direction shown to the front. However, I can locate no such assembly on the rear of the engine. Both manuals I have consulted (Haynes and Clymer) say that Honda moved the pulse generator to the front under the timing belt cover beginning with the 1985 model year. The Clymer manual shows the attached schematic, but labels it the camshaft position sensor for the 1984 model. 1985-87 are shown under the timing belt cover on either side of the crankshaft.
But several online parts fiche sets do show this part for the 1986 GL1200 SEI, with the attached schematic as the location.
Can anyone shed light on the actual location of the pulse generators on the 1986 GL1200 SEI? Are they the same as the crankshaft position sensor?
This is getting more desparate as the problem has progressed to the point that the like now runs erratically even before it is hot, and craps out completely much sooner.