OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Honda Engines chonda i think

Gday from hervey bay, I have a this motor which has had a good clean .


The numbers on the motor are g200f. 1005031168. e13*97/68sn3g2/88*0155*01 I had this motor running beautiful and then a small clicking noise come in to it . I then shut the engine off pulled the cowl off checked the coil. The coil was still tight ,I clanced over at the flywheel and pushed the plate where the screw is in the photo and noticed it was a bit loose so I undid the srew and the magnet underneath the plate was shattered. Please tell me I can buy this part sitting at the bottom of the motor in the last photo. Regards roebuck.

The 168F is one of the clones of the Honda GX160. Honda claims 5.5 hp (gross) for the original, and the 168F's manufacturer describes it as 5.5 hp but puts a 6.5 hp sticker on it. Remarkable marketing practice. You can get some details of it here:
http://www.alibaba.com/product-gs/999192129/168f_1_6_5hp_honda_type.html

You may be able to get a magnet from one of the importers of the engine. Otherwise a Honda GX160 magnet will probably fit.

Thankyou Grumpy ,I started to get a bit panicy about part as I'm just helping a friend out and I wasn't quite sure what to tell him. It only needed a valve ajustment. I wonder if this happens on the chonda regularly or it's just a freak thing. Try and get a part Monday.

I suggest you talk to the Honda dealer about installing it. It is possible there is a trick to it - for instance Honda might, say, put some epoxy on the underside of the magnet before installing it, so it has a full bearing area onto the flywheel. If the Chonda folks left out a step like that, it could work out just the way yours has.

Grumpy, I've been to honda and they do not sell these magnets and I have been looking on a forever list on the net and have had no luck so I was wondering does anyone have one of these flywheel laying around that they might like to sell me . Ithought I was in luck when I found one on the net but they refunded me my $33 to good to be true.please help.

Remember, you are looking for a flywheel for a 163 cc chonda - I don't think it matters whether it is horizontal or vertical crankshaft, the magnet at least will be the same, and probably the whole flywheel will. That means most of the chondas sold in Australia should suit. There are vast numbers of them out there. Outdoorking members seem to flick them aside with their feet when they run across them, and just keep walking, because they have a reputation for being difficult to keep running. You could just as easily use a GXV160 or GX160 Honda flywheel, but people are less prone to throwing genuine Honda engines away, even when they have problems.

Have you tried a tip shop? From what people report here, chonda-engined mowers seem to spend most of their time in tip shops.

Yes I'm going to the recycle centre on Thursday ,but I've only ever seen one 160 gcv that was at least 6 months ago and don't recall ever seeing a chonda but I have been lucky just of late I picked up another GV 150 . I'll keep trying though. Thanks and ill let you know if I ever get one.

The GCV160 is nothing like the GXV160, and nothing like a chonda. Personally I'd be disinclined to pick up a GCV160 if somebody abandoned it on my nature strip. I'd rather have a chonda.

I'll look forward to hearing from you when you get the flywheel, roebuck.

Hi Grumpy, moving a little off topic, in your opinion what is it that makes a GCV160 an inferior honda engine?

Hi bigted. The Honda engines with the C in their designation are the "residential" series, where those with the X are the "commercial" series. The Cs are overhead camshaft instead of pushrod, and are designed quite differently. The rubber cam belts wear and jump after a while, and the engines have to be split to replace them. They have an integral cylinder head, so the crankcase splits diagonally to enable the piston to be removed from the bottom, and this makes splitting the engine more difficult than usual. Of course, valve lapping is awkward from underneath, and the piston ring compressor has to be removed from inside the crankcase after installing the piston. Oil sealing is minimal - there is no oil seal on the governor shaft, which not-infrequently leaks - and the plastic camshaft and cam-sprocket is all in one piece with just one lobe: intake and exhaust rockers run on opposite sides of the same lobe, like on the old Triumph Dolomite Sprint car engine. The plastic camshaft is just a large sprocket with the single cam lobe moulded right on the back of it, so it is quite flat, but despite that has a reputation for fracturing. The camshaft rotates on a loose steel bar pushed through its center: you can just pull out the bar to lower the camshaft so you can time it on the belt. The carburetor is a slightly cheaper version of the Keihin, with a pressed-in tin idle jet that is quite awkward to service.

That is a basic outline of what I don't like. I see it as having been made as a throwaway engine for residential users, who are satisfied if it runs well for a few years. There is a market for that, but I don't admire the approach.

Grumpy do you have any pictures of the internal of a chonda. I'd just be interested in seeing what it looks like. Incase I come across one.

I don't have any internal chonda pics, blumbly. I've seen a few, and they look identical to a real GX or GXV Honda. Most of the parts are interchangeable with Honda ones.

Well grumpy ,though I had got one but it turns out the shaft size dosent match . This is the mower I got .

They match up in circumference the original a little taller but not a match sure what brand of engine is on this . 1P64F5Y25585. Never mind I will come across one I hope.

That is interesting roebuck. Can you just change over the crankshafts as well?

I wouldn't like to do this because it isn't mine but I'm going to ask what might be a silly question . The new Flywheel shaft size on the bottom is the same as the original but the top shaft size is slightly smaller so it wouldn't be practicle to drill a bit out of the top about a mm? So that it could drop a little.

No it's a silly question I'll just wait till I get another to suit either gx/gxv 160 thanks for your time.

I haven't understood the question yet roebuck. Is the taper the same? (Will the new flywheel sit on the taper and lock onto it when you press it down, with a large contact area?) Is the problem that the new flywheel has a smaller bored taper of the same angle, so it sits higher on the shaft?

It is essential that the taper has the same angle as the original, so if you put blue on the shaft, then carefully sat the flywheel on it then pulled it off without moving it, you would have close to 100% blue transfer to the inside of the flywheel's tapered bore.

Fits on nice but just won't go dowm far enough. It has the same taper so no point in drilling . They are not the same diameter across the bottom.where as before I said they where my error.

I'm slightly surprised they have made the diameter different - I don't see what the point was. However the outcome is that the flywheel won't fit on the crankshaft you have. Did you take a look at the magnet in the new flywheel, to see if it is the same except for not being broken?

Grumpy the magnet appears to be exactly the same size. 3 pics the first one of the flywheel with the original magnet plate just sat over the other . The second pic the Flywheel with good magnet in it . The third with both flywheels underneath side faceing up. Idont know how to go about getting the good magnet off as it looks really well glued.

To me it looks as if the glue just runs for the depth of the flywheel, and you could easily run a hacksaw across the gap and remove the glue without affecting either the magnet or the flywheel. However I might be missing something.


See the red ovals. That is where it looks as if a hacksaw would cut the glue without touching anything else?

Grumpy I have drilled the screw surgically then hacksawed the two spots you pointed out ( great minds think alike) and found that it was glued underneath aswell so I then put some heat into it and after a few minutes ave it a light tap and off it came so far so good . Next step tmrw is to exstract the magnet out of the alloy caseing which I'm going to try and hacksaw around the magnet but I will wait to see what you think I should do first .
I will give it a good clean first eg the glued side.

That looks like good progress, roebuck. Just one thing though: check that the magnet is still magnetised. Heating magnets can have a bad effect on them.

What I don't understand yet, is how the original magnet carrier attaches to your other flywheel. Can you explain that, with a picture or two?

It does look as if careful hacksaw work is a good safe way to remove the new magnet from the new carrier, but I'm not yet clear on whether the whole of the new carrier and magnet could be installed on the old flywheel. If it fits, it seems like you could remove the glue residue from it, put a new batch of glue on it, and screw it onto the old flywheel as a permanent job, much better than the original one. Of course that requires that the whole new magnet and carrier weighs exactly as much as the old magnet and carrier, to keep the engine in balance, but you'll have to check the balance anyway, and correct it if necessary. We can talk about that once this part is sorted out. Essentially, you would have to either drill a hole or two in the flywheel rim opposite the new magnet to reduce weight, or bolt and glue on a small piece of steel opposite the new magnet to increase weight. It is not a big deal to do.

Ok the original carrier is just a plastic border that fits over the magnet and then the magnet plate over that an then the screw. There's not much quality in these parts .

If the new magnet and carrier is a neat fit into the old flywheel, and the attaching screw lines up nicely with the tapped hole, I think I'd much rather use that and have it rigidly and permanently attached. The only downside is the balancing job, which can be fun anyway. To find out what it takes to balance it, just weigh the old bits (magnet dust, plastic surround, and cover plate, but not the screw), then weigh the new bit (magnet and surround all in one bit, but not the screw). Subtract the weight of the old stuff from the new stuff. You will then have to make up a small mild steel plate to screw onto the opposite side of the old flywheel, in the recess there, that weighs the difference in those weights. Of course you will have to drill and tap the opposite side of the flywheel to mount that small steel plate - you can't rely on glue alone, someone could get hurt.

Have already broke the magnet ,had it cut out neatly and went to clean the edges up to get the metal plate off then wamo a bit flew off it. My fault start again. What a bugger. Looking forward to doing it again as soon as I find another Flywheel . I will try your sainly approach next time.

Grumpy , a mate of mine oldie who frequence outdoorking found a website . He googled Flywheel magnet for 6.5hp and I think I may have one soon. Will let you no how I go. If this was my machine I would be in such a hurry . Thanks heaps for your help and take care .ps hardly ever see a honda at the recycling centre and I think that says a lot,

Thanks for the update roebuck. You can see why I wanted to keep the magnet attached to its mounting block and put the whole thing onto the flywheel. I'll look forward to your next report when you get another magnet.

I understand a trickle of Hondas does turn up at recycling centers, but they seem to be pretty much end-of-the-road examples. A contractor gets what he thinks is the last out of them, then they go to a salvager. The salvager either makes one-out-of-two and sends the offcuts to the recycling center, or fixes them up just well enough for them to run for a while as a home lawnmower, and then go to recycling. Having said that, I've seen examples of ex-contractor Hondas on the way to a recycler that were fairly fixable. Sometimes ex-privately owned ones are not too bad at all, but if they are complete and running, they go to ebay and sell for high prices. I think the biggest problem the salvagers have, is the high price of Honda parts, and the rarity of second hand parts. That is why they tend to make one-out-of-two, which wastes a lot of good components.

Ok Grumpy , I received the Flywheel today . Had a good look at it and it appeared to be a lot more heavily glued. I had a talk to the guy from ASSIESPEED (Mark) and told him what had happened so he said he'd have a good look at it before he'd send it. It works perfectly for a total of $60 including postage the machine is up and running sweet. Thanks aheap for your help Grumpy and a thankyou to Oldie who found the Flywheel .