Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Honda HS621 advice
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
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smp22
Joined: Nov 23, 2010
Points: 9
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Honda HS621 advice
Original Message Dec 14, 2010 10:35 am |
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Hi all. I recently purchased a used HS621 that wasn't running too good and have begun getting it back to (or trying to) reliable service. I purchased it for my folks so it needs to start easy and work consistently. There are problems with the carb, it only runs with the choke on. I got it to a point where it'll run with the choke almost off but it surges at that point. So, a complete carb dissassembly is in order and I'll be tackling that once the gasket set comes in. In the meantime, I wanted to ask whether any of the other HS621 owners could comment on the air cleaner on this thing. This is all new to me but there doesn't seem to be any kind of air filter on this thing. Not sure if it's related, but the float bowl on the carb was full of debris and sediment. This either came from the gas or could it come from the air intake?? Like I said, I'm new to this.
The parts diagram here: http://www.boats.net/parts/search/Honda/Snow%20Blower/0/HS621%20AS-B%20SNOW%20BLOWER%2C%20JPN%2C%20VIN%23%20SZAN-1038359%20TO%20SZAN-1099999/AIR%20CLEANER/parts.html
shows a strainer of some sort but I don't have that. Also, they don't sell it (part #8 is not in the list). So, is the diagram correct? Does anyone else have this snowblower that can comment? If i am indeed missing this piece can I just improvise something and what would be an appropriate material to use?
Thanks Steve
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smp22
Joined: Nov 23, 2010
Points: 9
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Re: Honda HS621 advice
Reply #2 Dec 14, 2010 10:55 am |
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Thanks for the fast response! There's actually a youtube video of a guy cleaning out a carb from the same motor:
http://www.youtube.com/watch?v=n_eTqL0C3gQ
Being that I'm new to this I thought I would order the gasket set to be sure. It's only $11 or so and I need a new choke cable and some other random bits as well (bolts, clips) to put this thing into top shape. I would rather not take the carb apart only to find that I need the gaskets at that point so better safe than sorry is how I feel about it I guess (especially since I've never done this before).
When installing an in-line fuel filter, do you just splice the existing fuel line and install it there? The replacement fuel line for this thing is like $70 or something ridiculous.
Thanks, Steve
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chefwong
Joined: Dec 18, 2004
Points: 175
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Re: Honda HS621 advice
Reply #4 Dec 14, 2010 11:49 am |
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I'd follow Borats advice. Remove the carb, wire, spray all the orifices, etc clean (my preferred Card cleaner is Berrymans) and just make sure the pin is set before you button the carb back up ;-) With this crazy 50 state rule complaint, some of the cleaners don't seem like the cleaner of yesterdays...
I would relook, but the last time I looked at a GX200 or GX160 parts breakout, there were 2 fuel filters inline . I may be wrong as I don't see a screen on inlet but right now I have other pressing matters at hand, but if I recall on the pic I saw, there was a filter on the inlet and outlet.
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smp22
Joined: Nov 23, 2010
Points: 9
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Re: Honda HS621 advice
Reply #6 Dec 14, 2010 12:40 pm |
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There is a valve yes, what I used to call a petcock on my old motorcycles anyway. There is a drain on the carb of course and indeed it does appear that the thing was never "summerized" properly. I'll be sure to do so after every winter and probably even drain the carb between uses if it doesn't snow a lot. I'm in Toronto, ON Canada by the way. The carb cleaner I'll be using is some Motomaster stuff that I've used before and seems pretty strong though I have nothing to compare it to. It did a good job on the bowl the other day. Thanks for the continuing advice. edit: oh, and if anyone can chime on in the need for a air filter of some sort. Again, judging by that parts diagram there seems to be some strainer type thing ahead of the air-cleaner box (what's in that box??? a filter?). One of my buddies told me that "snowblowers don't use air filters there ain't no dust in the winter" but that doesn't sound right to me.
This message was modified Dec 14, 2010 by smp22
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smp22
Joined: Nov 23, 2010
Points: 9
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Re: Honda HS621 advice
Reply #9 Jan 10, 2011 11:07 pm |
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Back again.
I have replaced the choke cable and I removed the carb tonight and cleaned it and replaced a couple of the o-rings. Now, I didn't remove any of the jets because I was nervous about breaking them and this is probably where I went wrong. I was nervous because I know one of the jets (is it the pilot jet?) breaks if you take it out and I don't have a replacement. In any case, the thing is running way better now and it starts no problem but it's still surging :/
Here is a video to show you what I mean....
http://www.youtube.com/watch?v=pi5SdAsWZYQ
I'm guessing this is still some sort of carb issue. If I dismantle the carb again, which jet should I really be focusing on and should I be worried about busting any of them? Thanks!
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