My Honda G200 has no spark. I've watched all your videos on the subject, replaced spark plug, spark plug boot,, coil, condenser, points and checked all the wiring but still no spark. Any other suggestions would be helpful
Glad to hear you say that because that's what I've already done so they are now identical. I've adjusted coil away from the flywheel all I can (not much to adjust) but it still rubs a little on the flywheel. Any ideas?
That's may be the issue. This'll take you a few times and alot of cussing:
Loosen the coil and make it go out towards the flywheel as much as you can, Tighten the coil screws. Try to install the flywheel, it probably won't fit, if it does and you still have no spark something happened to the flywheel magnets and they aren't as thick as they should be now.
Assuming things work as they should ( give rested the flywheel in its place and it doesn't fit)
Remove the flywheel, loosen the screws and tap the coil inwards,, litteraly a teeny tiny bit.
You'll need to keep repeating this process until the flywheel barely fits over the coil, then move the coil back more, about. 0.5-0.10
That should give you enough clearance to get a spark. Then you can adjust your coil sure gap to strengthen your spark to where you want it.
Also, look for a hole in the flywheel somewhere, alot of those had a small hole that is almost big enough to get a screwdriver in to adjust the coil air gap.
I've installed a new flywheel but it doesn't have a hole in it so I'll try the adjustment method you've suggested. How many magnets should a Honda G200 flywheel have? The old one only has 1 magnet and the new one has two
If you have a cdi unit you'll have 2 magnets in the flywheel, non cdi will only have one. You may need to remove one magnet, as long as the magnet location is correct. Both flywheels have to have the magnet location identical.
Assuming all the electronic parts: coil, plug, points, condenser and wire are new then you'll need to check all the wiring. You said that all looks good, so we can move on from there. It's been my experience alot of times with lack of spark, it's caused by a bad ground. Make sure you thoroughly clean any area in the block where a screw,, coil screw, points screw, screw that holds a ground wire down etc. If any of those areas aren't getting a good ground, that'll have you chasing your tail for days.
Next make sure that your points gap and air gap are right (.02-.04 points gap, non CDI-- the book says. 035 for CDI unit,,.030 is a much bluer spark, I go with .035)
Air gap on those is about .015 or about the thickness of a business card.
Double check your measurements, those are sometimes tough to get just right.
If you know, absolutely, positively sure all those things are good then you gotta go deeper.
Pull the flywheel and inspect the flywheel key, if there's any HINT that it may have moved, replace it. Check the "bump" on the flywheel where the points rub and rise up, make sure it isn't severely worn down.
If all of that seems good then you have to recheck what you've put in.
Check the ohms reading in the coil.
Check for resistance in the coil wire. Make sure every part you've installed is, in fact a good working part.
Lastly, you didn't mention if this is a CDI unit, if it has a CDI, replace that unit.
Thanks for the reply. Obviously I'm missing something but I've done everything you've pointed out. The one thing is that this Honda G200 engine has the coil inside the flywheel so the air gap can't be set. What do I do about that?
Glad to hear you say that because that's what I've already done so they are now identical. I've adjusted coil away from the flywheel all I can (not much to adjust) but it still rubs a little on the flywheel. Any ideas?
That's may be the issue. This'll take you a few times and alot of cussing:
Loosen the coil and make it go out towards the flywheel as much as you can, Tighten the coil screws. Try to install the flywheel, it probably won't fit, if it does and you still have no spark something happened to the flywheel magnets and they aren't as thick as they should be now.
Assuming things work as they should ( give rested the flywheel in its place and it doesn't fit)
Remove the flywheel, loosen the screws and tap the coil inwards,, litteraly a teeny tiny bit.
You'll need to keep repeating this process until the flywheel barely fits over the coil, then move the coil back more, about. 0.5-0.10
That should give you enough clearance to get a spark. Then you can adjust your coil sure gap to strengthen your spark to where you want it.
Also, look for a hole in the flywheel somewhere, alot of those had a small hole that is almost big enough to get a screwdriver in to adjust the coil air gap.
Hi. Thanks for checking in.
Assuming all the electronic parts: coil, plug, points, condenser and wire are new then you'll need to check all the wiring. You said that all looks good, so we can move on from there. It's been my experience alot of times with lack of spark, it's caused by a bad ground. Make sure you thoroughly clean any area in the block where a screw,, coil screw, points screw, screw that holds a ground wire down etc. If any of those areas aren't getting a good ground, that'll have you chasing your tail for days.
Next make sure that your points gap and air gap are right (.02-.04 points gap, non CDI-- the book says. 035 for CDI unit,,.030 is a much bluer spark, I go with .035)
Air gap on those is about .015 or about the thickness of a business card.
Double check your measurements, those are sometimes tough to get just right.
If you know, absolutely, positively sure all those things are good then you gotta go deeper.
Pull the flywheel and inspect the flywheel key, if there's any HINT that it may have moved, replace it. Check the "bump" on the flywheel where the points rub and rise up, make sure it isn't severely worn down.
If all of that seems good then you have to recheck what you've put in.
Check the ohms reading in the coil.
Check for resistance in the coil wire. Make sure every part you've installed is, in fact a good working part.
Lastly, you didn't mention if this is a CDI unit, if it has a CDI, replace that unit.
I hope all this helps.
If you need anything else, I'm here.
Again, thank you for checking in with me.
Papa