ThomW
Chief Petty Officer
- Joined
- Aug 8, 2016
- Messages
- 615
Alright Duke...Still a no go. Played with the timing again this weekend and it still won't go to specs. Bought a new light too! Tried using the strap...nada. It will move from 0 TDC to almost 10 BTDC and that is it!
I decided I would take it to the lake and see about setting it on the water. It starts up fine, idles great. Won't go above 2000-2500 rpms. Tried using timing light while hanging of the back of pontoon, and still no good. Of course, when you can't go over 2000 rpm's, setting WOT timing may be impossible anyway.
So...here's where I am at. On the water, idles fine, and runs normal up to about 2000 rpm's. Then, even when I try full throttle, it wont pass 2200-2500 rpms, and will sometimes die when I try and give it full throttle. if you cruise at 2000 rpm's, seems to run fine and not sputter at all. If I pump throttle lever, it will bump up to almost 3000 rpm's, but then falls back down. Pressing choke does nothing for the issues.
Here's a question--if I had weak spark from a plug, would that prevent the timing from being able to be set and or contribute to these symptoms? What I mean is, say I am checking spark and have spark on all 6 plugs (which I do), but one or more was weak (say wouldn't quite make the 7/16 gap), would that screw up timing setting? I am planning on buying a new spark tester and re-check that I get the spark at a heavy 7/16 gap on each plug.
Really running out of Ideas here. I guess I could start it up and pull the plugs one at a time and see what each does to the running? Thoughts? Ideas? I really don't want to bring this into a shop and wait 3-4 weeks for them to even look at it. Thanks again!
I decided I would take it to the lake and see about setting it on the water. It starts up fine, idles great. Won't go above 2000-2500 rpms. Tried using timing light while hanging of the back of pontoon, and still no good. Of course, when you can't go over 2000 rpm's, setting WOT timing may be impossible anyway.
So...here's where I am at. On the water, idles fine, and runs normal up to about 2000 rpm's. Then, even when I try full throttle, it wont pass 2200-2500 rpms, and will sometimes die when I try and give it full throttle. if you cruise at 2000 rpm's, seems to run fine and not sputter at all. If I pump throttle lever, it will bump up to almost 3000 rpm's, but then falls back down. Pressing choke does nothing for the issues.
Here's a question--if I had weak spark from a plug, would that prevent the timing from being able to be set and or contribute to these symptoms? What I mean is, say I am checking spark and have spark on all 6 plugs (which I do), but one or more was weak (say wouldn't quite make the 7/16 gap), would that screw up timing setting? I am planning on buying a new spark tester and re-check that I get the spark at a heavy 7/16 gap on each plug.
Really running out of Ideas here. I guess I could start it up and pull the plugs one at a time and see what each does to the running? Thoughts? Ideas? I really don't want to bring this into a shop and wait 3-4 weeks for them to even look at it. Thanks again!