Honda HRR216

1saxmanApril 13, 2007

One of my son's buddies gave him a 'lightly-used' Honda mower for his new house. We were trying to diagnose it over the phone because he couldn't get it started - you know why - stored for two years without draining the gas. After draining it through the carb bowl and putting in fresh gas, still no start, but he got a strong gas smell out of the muffler. Obviously, gas is getting in, but no fire. He had to go to Sears to get tools to take the plug out. He also stated the oil was black. I'm thinking 'Lightly used?'. I got him to change the oil before trying to start it again, which he did, thinking he would change it again after one use. He got the old plug out, which was terribly fouled. This was a surprise to me, as my OPE spark plugs are generally 'for life'. My 2-cycle plugs don't even get dirty. Anyway, he put the new plug in and the thing fired on the first pull. I have him using my 'witches brew' in the gas (Sta-Bil + MMO), so it will be clean before long. The good news is that it blew no oil smoke, doesn't vibrate, doesn't leak and runs like new. Pretty good for free! I expect he will be cutting his yard this evening. I congratulated him for hanging in there and solving it himself rather than taking it to the shop. What is still undetermined is why the plug fouled in the first place. It could be running rich, but I highly suspect the previous owner ran it with the choke on, a common occurrence with the type of throttle lever where 'choke' is all the way down just past 'fast', with no clear detent between the two. I constantly am checking this myself on the LB 10550 - very easy to get the choke a little closed when trying to get full throttle. Most of the complaints of poor running on 10323s and 10550s are because of this operator error.

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like_my_yard(Central NC.)

My neighbor had a HRR216 that his son had put weedeater fuel mix in (Dad didn't know this). He tried to get/keep it running for at least 2 hours. Finally brought it over to me and asked for help. I took off the gas cap, you could smell the fuel mix in thr tank. We tipped it over and drained the tank. The spark plug was really fouled out.
Cleaned the plug,changed the oil and put fresh gas/oil in it. When we started it, all the insects within a half mile were killed. Still running to this day

    Bookmark   April 13, 2007 at 1:57PM
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bill_kapaun

I'd also check the air cleaner. If they didn't change oil, it's unlikely anything else was maintained.

    Bookmark   April 13, 2007 at 3:14PM
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1saxman

'I'd also check the air cleaner. If they didn't change oil, it's unlikely anything else was maintained.'

All obvious trouble spots were checked. I now believe that thinning of the oil (reducing to 10W base stock) from never changing oil (it was like black ink) is what fouled the plug and probably combustion chamber and valves too. This is one of the potential drawbacks of using multi-vis oil, but all drawbacks are nullified by regular changes. It'll get clean over time with my gas mix. This engine also has the typical early GCV oil leak around the governor shaft at the left rear of the engine - mainly an appearance issue.

    Bookmark   April 13, 2007 at 6:21PM
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mike9476

Properly mixed weedwacker mix shouldn't foul a plug that badly. I have often run leftover weedeater or snowblower 2-stroke gas in a 4-stroker. It barely even smokes most times. They must have put standard motor oil in it or something.

    Bookmark   April 13, 2007 at 6:22PM
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nevada_walrus(Boulder City)

Saxman, I would be inclined to agree with Bill on the air filter. GC filters do a better job of filtering then most brands. It will intercahnge with the Brigg Quantum Power filter size wise and the brigs will last much longer, but will allow dirt to pass.

The GC filter is a sorta lime green. The very outer rim will remain the original color most times and when the rest of entry side has any discoloration it is time to replace. They will richen up the fuel mix very quickly once going off color and foul the plug. They won't be all packed in with crud, just off color because they stop all dirt from passing.

You can trade engine life while gaining filter and plug time by using the Briggs filter but the Honda filter is no more if not actually less to purchase so I would advise to just replace them more often.

    Bookmark   April 13, 2007 at 8:33PM
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1saxman

Good thoughts on the filter. It's been replaced now but certainly could have caused a problem in the past. I didn't know they were that sensitive on a GCV.

    Bookmark   April 14, 2007 at 12:21AM
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