Hi RussellBooth. Sounds like you have done a thorough job. Once you open up the engine it makes sense to replace the additional parts that are ready to be swapped out. The nice thing about these engines is they are easy to work on. They seem to have fewer parts and a simple design which has been around for a while. I have the same size engine in my pressure washer. I bet your Dad is happy to have the repair done so he doesn’t have to go and get a new mower. I hope the video gave you some direction and confidence to tackle the repair. I can see you did your homework regarding parts and specifications. Nice job. Thanks for checking out the video and posting. Roger

First and foremost, thank you for sharing your experiences and problems. I am an experienced user of mainly Honda lawn machines, including an HR217 more than twenty years ago. Currently a Honda HRH 536 HX and 2417 Riding Mower with a GCV530. From experience I know and can confirm that a regular 5w30 is not sufficient. A Rowe Hightec Synth RS 5W-40 or even better an Amsoil XL Boosted or SS Diesel (the best) 10w30 or 10w40 are recommended. The above have an ideal HTHS which is necessary. As well as a low NOACK or evaporation loss. These small adjustments will save you future problems and the engine will last a lifetime. Changing the oil before the winter and again in the summer is ideal. Always use gasoline without ethanol, and add a shot of B&S fuel stabilizer. You're doing good with it. Good luck and have fun with it! A Belgian.

@@laurapalmerTDGE Thanks for the great post full of information. There is nothing more valuable than experience. Since I’m not a specialist, when doing videos I try to use what the manufacturer states in their manuals. I’m not saying there is not a better way to do things but I need to be careful. You know it can’t hurt to change the oil to much. As you stated, I also change the oil at least 2 times a year. Originally I wasn’t going to do a video on this lawnmower. However I turned on the camera and felt there was some decent footage. This was the first time I had ever completely taken a mower apart. I was pleased that my oil change schedule was good enough that the insides looked pretty good. My moto is to promote fixing things rather than throw stuff out. I’m going to use your recommendations for my lawn mower. Let see how it goes. Thanks for checking out the video and posting. I really enjoy reading the comments. Thanks again. Roger

​@@repairitdontwreckit4257 - Glad to read that it is useful to you and that it interests you. Over time you will notice the benefits, and you should take good care of that Honda or a Honda in general. To illustrate, my Honda HRH costs $2,358, the means for proper maintenance are negligible in price. And mainly you have to think about maintenance of the spark plug, the air filter, oil, and especially sharp blades. For the blades you can search for "flap disc grit 40 mower blades". You should also know that engine oil serves to cool the engine, oil absorbs and dissipates heat, as an optimal compression of the piston, etc. With what I recommended you will hardly have any oil consumption, but you can still check the level periodically. A quick expl. about a 10w30 : 10W: The "10" refers to the oil's viscosity at cold temperatures (lower temperatures). The lower this number, the thinner the oil is at cold temperatures. A lower number here means the oil will circulate more easily when the engine is cold, which is important for engine startups in colder climates. The "W" stands for "Winter". It's an indication that this number pertains to the oil's cold temperature characteristics. 30: This number refers to the oil's viscosity at 100°C (212°F). The higher this number, the thicker the oil will be at high (operating) temperatures. A thicker oil at high temperatures can be beneficial because it provides a better protective film between engine parts at those temps. So, in the case of 10W30 oil: The oil behaves like a 10-weight (thinner) oil when the engine is cold, ensuring it circulates easily and provides lubrication. At operating temperatures, it behaves like a 30-weight (thicker) oil, ensuring it provides adequate protection under the heat and stress of the engine. In summary, multi-grade oils like 10W30 have been formulated to protect the engine under a range of temperatures, making them versatile and suitable for many driving conditions. It's always essential to refer to your vehicle's owner manual to see which oil grade is recommended for your specific engine and driving conditions. Enjoy!

Thanks Jerry Maroulis. I glad you liked the video. Roger

Jessebunker. Very good point. This was my first time doing this. It’s always good to hear from viewers with suggestions on how to do things better. Thanks for watching and posting. Roger

Hi Phillip. Thanks for checking out the video and posting comments. There’s definitely more than one way to keep the valves in place. Not everyone has a compressor. For me it was a little scary thinking what next if the valve dropped. At the end of the day I ending up taking the thing apart. It was a good experience. Every time you do something like the rings you always learn and build your confidence. Roger

Hi Mr Tumbleweed. I totally agree. These engines are air cooled. The oil has to do a lot of work. Thanks for posting. Roger

@@repairitdontwreckit4257 that's very true Roger. I'm currently rebuilding one of these and am encountering the same thing as you did. I'm going to see if I can get a flex hone tool like the one you have as I too am going to be fitting new rings. Could you tell me what size you bought? The cylinder is 69mm diameter but I understand that you have to buy something larger than that 🤔 Flex hone are harder to find here in the UK but Amazon have some listed so maybe they will be able to post one out to me if I can find the right one.

@@MrTumbleweed22 I went to the flex hone website. They state to order the honing tool the size of the diameter of the bore. It will be delivered slightly oversized. In your case the bore is 69 mm. They don’t make a 69 mm diameter, but the next size is 70 mm. This is what you should order. If the cylinder is aluminum the site recommends a honing tool that is made from aluminum oxide. I used a 240 grit. The damage on the cylinder walls for my lawn mower wasn’t to bad overall. I used motor oil to lubricate the tool and the cylinder. It doesn’t take much time to hone the cylinder. Start at say 20 seconds or less and check how it’s going. Always keep the tool moving. There are videos on the flex tool website and on utube. The flex tool website also has recommended rpm speeds to help you get the best results. It’s not hard as long as you follow the basic instructions from the manufacturer. Have a look at some of the videos to get an idea of what to expect before ordering. Also double check what I have said to make sure I didn’t miss anything. It’s been while since I did this video. It doesn’t take much to get the cross hatch going on the cylinder walls. I hope this helps you. If you have any more questions just post them and I will do my best to answer them. Thanks . Roger

@@repairitdontwreckit4257 thanks so much Roger. That's really helpful advice 👍😊 I managed to find a 70mm one on Amazon so when it arrives I'll let you know how it goes.

Sounds good MrTumbleweed.

Hi Dean. The grit in the video was 240 and the composition was silicon carbide. It was real easy to use. Check out the flex hone website as they have excellent videos on how to properly use the tool. Thanks for checking out the video. Roger

Hi @oodeeps. I just lapped them. They were in good condition. Thanks for posting. Roger

Hi Matt Caldwell. No I didn’t. I went on utube and found a video where a guy used a gear clamp. Something you would use to secure hoses to fittings. Usually stainless steel. It was a little tricky but if you take your time it will work. It took a couple of tries to figure it out but I got it to work. I didn’t feel like buying the tool for one job unless I had to. Any hardware store will carry them. Thanks for watching the video and posting. Roger

Hi Joelmb. You got me thinking. It’s been a while since I did the video. I went back to the engine parts list. It shows one seal on the intake valve. Just to be safe if your doing work on your engine double check your set up. I’m thinking a seal on the exhaust valve wouldn’t last long. Also, on the intake, oil is drawn into the combustion chamber as there is vacuum. That’s why they have a seal there to control the amount of oil on the the valve stem. On the exhaust you need lubrication also. From what I’ve read there’s a little bit of pressure so it’s not a problem with oil getting into the combustion chamber on the exhaust side. I pretty sure the engines have to meet emissions standards at the time of manufacture. The engine has been designed to pass emissions without a seal on the exhaust side. Whew. It’s a topic in itself. Thanks for watching and posting. Roger

If you install old seal on exhaust you must remove the rubber seal and it’s ok then to keep guide from moving up

timdenton I’m looking at the part number for the piston you have. It doesn’t look complete. For example the piston number for my mower is 13101-Z8A-900. The rings that I used were 13010-ZOL-014. These are Honda part numbers based on the serial number on the engine. The Honda website for parts was not to bad to use once you got the hang of it. If the piston is a Honda part I seen no reason you can’t find the rings for it. With parts it’s all about the numbers. From my experience a lot of the parts were the same for different years and models but the engine size was always the same such as the GVC160. You still need to check the numbers as there’s a ton of parts out there and there can be subtle differences that are not noticeable to a visual examination. Thanks for posting your question. Roger

Don't know age or model number. The number was on top of the piston. Call US HONDA?

@@timdenton2067 I think calling Honda is the way to go.

Hi metallitech. Thanks for looking at the video. I’m not an expert but the bore was not plated. It certainly was aluminum and responded to the honing with excellent results. Today I cut the grass and everything was running smooth. Roger

No there just cheap

Hi there cma8165. I purchased the Flex Hone tool on Amazon. I used the silicone carbide , 240 grit brush. I would go to the Flex Hone website to determine the correct diameter you would need. It’s been a while since I posted the video so I’m not sure of the diameter that I used. However the website is excellent for any information you would need. One advantage of going to the Amazon listing is you can read the reviews to get a good idea of what people think of the tool. I took a quick look. It had a lot of 5 star ratings. It’s was easy to use with excellent results. Here’s the link. a.co/d/6muBBKx Good luck with your project. Thanks for watching and posting. Roger

M Gomez. So do I. Thanks. Roger

Hi @menortheledge. Originally the plan was to video replacing the valve stem seals the solve the smoking problem. When doing that didn’t fix the problem I started looking at other utube videos to learn how to do the ring replacement. There is a lot of good videos out there already. I felt that I couldn’t do a better video. I’m not a professional engine rebuilder and didn’t want to give bad advice by accident. However what I did was to take some video on what I was comfortable talking about. I hope this answers your question. Thanks for watching and posting. Roger

@Tintoycar. Your right. I seem to have bad luck. It’s amazing that your machine is still going. Thanks taking the time to post. Roger