Saved from scrap! Appraising & successful repair/maintenance of a GMC two stroke 850W Generator. 

This is probably the best video I've seen on this type of 2-stroke generator on RU-vid. I've owned one of these for years, and have watched dozens of videos of them being repaired. I know this video is 2 years old at this point but you've earned my subscription because of it. 👍

I bought one at a garage sale today for $10. I changed the fuel but unfortunately I didn’t clean the car by out before trying to start 😖. At least I know what I need to do tomorrow. Very informative thank you.

Genuinely enjoyed that tutorial. Big thumbs up Chris 👍

Your video was so good and thorough. With the help of videos like yours I have been inspired to try these jobs myself these days. I have the exact same generator that has been sitting idol for many years. Your in depth video has me itching to get it out now. Thank you 👍

Clearly conveyed information. My old GMC 850w had a cracked fuel bowl and I was close to scrapping it. Your pull down and reassembly of this model generator has helped me to effectively repair the generator rather than scrap it. Thanks.

Thanks for taking the time to make this video. It's very detailed and informative. You provide a methodical approach to check and repair the 2 stroke engine.

I litterally just repaired the same genny the other day. Mine was bought in 2008. Carb rebuild kit was twice what a new carb was so replaced the whole carb. Threw a new magneto and coil at it. Cleaned the spark plug. Pulled the cylinder head off and wire brushed and fine sanded it and put it all back together. Runs like a champ now.

Thanks for demystifying two stroke engines Chris. A great video again.

Well done, I wish mine would start as easy as yours, even after doing what you did.👌

This was great! I just pulled exactly the same genny out of one of my Mobile Skips. Watching this has convinced me it's worth a bit of my time getting it going. After hearing it running I don't think I'll be taking it to any campsites! Many thanks.

great video,... i have 2 in the shed to look at sometime when i need a change from mowers ,snipers, dryers,chainsaws washing machines etc,etc....

After watching your video I started up my two stroke whipper snipper (Stihl) after I had not used it for well over 12 months. It ran for a minute and then made more smoke than a fog machine. It then it stopped so I removed the plug and it was clean as it would have come out of the factory. So I squirted some petrol down the plug hole and refitted the plug and it ran after that. It must have had some oil build up some where in the engine. Thanks again for your video.

I only needed to check the spring and rod was attached to the carb correctly, but the carb bowl clean and carb blowout really was in need of doing as it’s now running a bit smoother now thanks!

Very informative and clear video i have found so far. I just found an old Genset we were using some 9 years old. Its in very bad state and i am no mechanic man ...but thought i would used it to learn about engines together with my 12 year old twins. Am a complete newbie 😂. But willing to learn. Thanks for this!

A very good result and an enjoyable video. I learnt a lot! Thanks again buddy :)

I really enjoyed that Chris. Thanks mate.

Thank you so much. I got an old one of these and now I'll be able to follow your instructions to make it work 😜

Wow, this is so good! I could seen how its built without breaking mine, also mine had a low bvoltage problem, which you shown how to adjust the RPM`s, which I guess gonna fix mine. Great tutorial, great knowledge, vell presented! Thank you!

Thank you so much sir. Best blooming video of its kind and there are some good ones. Your explanations very clear and exemplary. I’ve subscribed.

Red Armor Oil 2 Cycle 45:1 ratio. Will help cleaner inside engine and no buildup carbon.

Great video Chris! I learned from it :) 👍🏽

Thumb's up for that look over your shoulder. Those old 2-stroke "fussbuckets" are just the ticket for running most power tools off-grid. I've got a couple of near-identical ones here in the States, albeit in our 115VDC flavor here. They're also handy in weather or other emergencies if the power goes out for a time. They won't run the whole house, of course, but with a decent extension cord through the window you'll at least have a few lights, maybe run a fan or small space heater on "medium", and every couple of hours it'll even put its back into running most refrigerators (but nothing else) for an hour or so to keep everything from defrosting or spoiling. Every homeowner should have one for those short term emergencies. One trick to keeping them happy, especially if there's any ethanol in your fuel, which can clog them up pretty quickly if they sit unused even for just a few weeks, is to shut down the engine by turning off the fuel tap and just letting the carb run dry. That really helps keep the carb from getting a case of "the ethanol snots". I also try to run ethanol-free fuel in mine. Sadly, one of my two gensets like that one (a StormCat 900 sold here by Harbor Freight) has developed a very poor spark. I've replaced the spark plug with a new and also a known working one, installed a new coil (actually two, in case of defect, along with its accompanying spark plug lead), tested and also disconnected the engine on-off switch, but still get only the very faintest of sparks--hardly visible at all. It may start and run for a moment or so, but soon dies, after less than a minute, usually. Frankly, I'm a little stumped now. Any advice from you or your viewers would be greatly appreciated.

You made that look very easy mate, better in your shed than the tip.

Really great video. Thanks, it helped a lot!

That was an excellent video for troubleshooting and maintenance of this little generator - thanks mate. I can answer a couple of questions you asked: Q: How old and how much? A) They were sold in Bunnings in 2005 for $98 so that gives you an idea (don't know how long the selling run lasted). I have my Dad's which has the receipt attached in the manual, trying to get it going . . . can't remove the spark plug (corroded in by looks) with normal spark plug long sockets and can't get an adjustable spanner on it as spanner edges too thick to fit in between plug & fins. Going to have to buy a new special socket or ring spanner (22mm?) sigh as I don't have that size in my set.

Extremely helpful. Thank you.

Great save

Thankyou. I have exactly this model and the governor seems to be closed so the motor wont start without putting fuel in the plug hole.

Great video. Thanks

I did a whole check up on mines and now is working like a clock, looks like themost common problem is the carb clogs either when fuel is left in it, dirty gas or just any dirt build up in the carb jet.

Good vid mate. How many turns out on the carb adjustments screws. The new one came and was 4.5 turns out I think it was the only adjustable carb screw on it. Also definitely not getting a spark like like that one is, I replaced the top coil guess I need to pull off the fly wheel and look at that electronic mag.

Mines not putting out power. The cap looks old and crusty so I tried a spare one I had laying around but still didn't work. The original cap was 15uf and the spare one I had was 12uf. Do you think it matters that much? Great video by the way

I have a question what will happend if i pulled it because i actually pulled it a couple of times and i think we both have the same problem with the un used two stroke fuel

Hi, Do you know what type of spark plug you use in the Ginny, ie, type and number.?🤔😊

hello just wondering where can you buy parts for this as my petcock is totally destroyed

Two strokes are there own animals 🤣..great video TEACH .. I wonder if everything comes easy to you .. again the Secret of life hasn’t been solved yet 🤣👊🏻..

Nice

Really helpful thanks!

Love the full brake down. But other then doing sonfor RU-vid is it worth doing all this? I just got one on side of road. In box....very little use. Startes first pull the fuel tap fell apart