⟐ Answered Ağustos 02, 2025 at 17:06 GMT-7

fails to start....no spark at the spark plug

⟐ Answer edited Şubat 05, 2023 at 10:32 GMT-7

⟐ Commented Eylül 12, 2023 at 14:40 GMT-7

⟐ Answered Ocak 17, 2026 at 12:24 GMT-7

⟐ Answered Temmuz 28, 2025 at 16:22 GMT-7

⟐ Commented Şubat 26, 2023 at 13:38 GMT-7

⟐ Answered Şubat 11, 2023 at 5:52 GMT-7

⟐ Commented Ocak 05, 2026 at 19:14 GMT-7

Background: I have used this generator for over a year at a remote site to power my camper and tools. It has always run well and been a good purchase choice. I will say that I believe the CO detector is WAY too sensitive and shuts the engine down far too easily most of the time. My generator is located under an "open" shed, away from anything resembling a full enclosure, but it still shuts down if I don't constantly have a fan connected and blowing directly across the unit! It is simply WAY TOO SENSITIVE! That, and the fact that EVERY generator I have ever owned, including this one, uses/burns too much oil. I'll put it this way: an "oil change" is pretty much redundant because they all require almost a quarter cup of oil for every 6 to 8 hours of run time. It's just been that way for every brand (last count 4 brands, 5 generators) I have owned. But all in all, it's been good.

The Problem: The last time I used it, it ran as usual and shut down without incident. I went back to the property about ten days later. Followed my usual "startup routine", reconnect battery, turn on fuel, check engine oil, check for wasps...maybe not in that order; and when I went to start it, the engine only made a partial spin and stopped abruptly. It didn't even turn over enough to attempt to "fire up". The battery was/is fully charged. Fuel tank full; fuel (gasoline) flowing and clean. I use the electric start on the side panel (sometimes, I go inside the camper and use the remote control to start it, but usually not on the initial time. When it did the same thing on the second attempt, I then tried the pull cord to start it. Again, it came to an abrupt halt, which nearly separated the cord and/or my wrist. This "lockup" was instantaneous and without any forewarning signs or symptoms.

I pulled the start recoil unit off and checked it for problems but it was okay. I inserted a tool through the piece on the end of the crankshaft and attempted to turn the engine manually. Same result. The engine will rotate normally in either direction, I estimate, about 340 to 350 degrees of rotation then stops; a "mechanical stop", not soft or mushy. It just stops moving.

Removed the spark plug and checked for any fuel/liquid or other debris which may be prohibiting piston/crank movement. Checked valve(s) movement and push rods; piston travels freely up and down with the bit of rotation that is there; all seems well. Removed the oil fill plug AND oil drain plug (there is no sign of metal in the oil whatsoever), used a probe/scope camera in each opening (including spark plug hole) and have not seen any signs of anything out of the ordinary -- actually, remarkably clean! No stuck valves (valve lash seems ok, as the piston seems to make it to almost TDC on compression stroke when it stops moving). No loose rod bolt, no bent push rod, certainly no liquid lock. Cleaned, sanded, and inspected flywheel, magneto alignment, etc. No apparent issues there.

I have been informed that there is a nylon gear on the camshaft and I'm wondering if there may be a broken tooth/teeth that are somehow blocking rotation. Has anyone any experience with such an occurrence? Which brings me to: Does anyone have a repair / service manual for this engine? Even detailed diagrams of engine parts and design would be helpful.

My next line of thinking is, "Is there anything in the generator itself that can be locking the rotation at the same spot each time the shaft is turned?" I can't recall having ever heard of such a thing, but guess it could be a possibility. I've been told that there is no such thing as a simple set-screw/bolt or shear-pin connecting the engine and generator shafts; but it seems like that would have been a great idea in someone's engineering class. Just saying. The same source said that one must take the generator apart from the opposite end, a bit at a time, to reach the point to where the engine and generator shafts can be separated. Does anyone have information on this?

Sorry this got so long, but it's been my experience that more details get more accurate responses. I will be very grateful for any assistance or helpful information that is given. My belief is that helpful forum members are the best folks there are!

⟐ Commented Ağustos 30, 2024 at 14:59 GMT-7

⟐ Answered Ocak 30, 2026 at 21:29 GMT-7

⟐ Answered Ocak 24, 2026 at 18:05 GMT-7

⟐ Commented Aralık 05, 2023 at 12:09 GMT-7

What may be wrong?

⟐ Answered Mart 07, 2026 at 19:45 GMT-7

⟐ Answered Şubat 28, 2026 at 19:05 GMT-7

⟐ Answer edited Şubat 05, 2026 at 7:33 GMT-7

⟐ Answered Ekim 18, 2025 at 15:55 GMT-7

Also no acceleration on generator

⟐ Commented Ağustos 20, 2025 at 12:21 GMT-7

IG 3000 model number I didn't see where that thick metal spacer came from it fell when I pulled it off. Had it running once then next day right back where I started. Cleaned everything but I think it's sucking air so I got new gaskets . Want to be sure of the order so I don't beat gaskets up redoing it. get gas to the bowl cleaned jets and float stuff but it doesn't seem to be getting gas. Runs on starter fluid. Any help is appreciated

⟐ Answer accepted Temmuz 24, 2025 at 8:48 GMT-7

⟐ Commented Mayıs 01, 2025 at 19:50 GMT-7

⟐ Answered Ocak 09, 2025 at 12:58 GMT-7