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Hi Again,
I got some good feedback from everyone regarding my 318 honda repower. I replaced my cables and cleaned up the connections at the batter and no difference, still only turns over ever 4/10 tries. I'm waiting for the starter improvement relay. I really hope that does it. It seems like the reading when I only get a click is under 6 volts, so thanks for that suggestion.

However, I have a couple of other quick concerns about the engine, again this is a brand new Honda GX630/ 24 hp
The engine smokes on cold startup. It is fairly faint but very obvious. The smoke is white and disappears pretty quickly. It does not smoke after initial startup. I was pretty careful about filling the oil as it called for 1.8 quarts in the manual specs, and if I overfilled, it was not by very much. The engine now has about 30-40 minutes on it, and this persists.

Also, the engine does not raise from low idle to full throttle without a little hicup, even if I do it somewhat gradually. IT does this even when warm. Perhaps I am expecting too much throttle response. Is this normal?

Thanks as always for any thoughts!
 

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Not sure on a Honda, the Onan on my 318 and the Yanmar on my 322's have what I call "stepped" throttle response, they aren't always smooth, they tend to jump up a step instead of slowly increasing RPM.
 

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As far as the smoking, sounds pretty minor and I would wait until after it has a few hours of run time before making a judgment.

Regarding the stumble, I'd run a tank or two of fuel through it and adjust the carb if it's still a problem.
 

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You need to get some time on that engine it's going to smoke a little bit till it's got a good 10 hrs or maybe 20 to break in and burn off assembly lube ECT..make sure you have a good ground and good battery brand new engine gets brand new battery...in my book on repowers..also make sure every electrical harness point is lubed with dieelectric and tight maybe new key switch too..is this a kit from the guy that does Honda repowers I did a sew Briggs vanguard 23hp to my 316..
 

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As far as the smoking, sounds pretty minor and I would wait until after it has a few hours of run time before making a judgment.

Regarding the stumble, I'd run a tank or two of fuel through it and adjust the carb if it's still a problem.
Honda carb is probably fixed no adjustment might be wrong..
 

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Slight throttle response will get better with breakin there really designing carbs to day to be on or off so wot or idle my kawi's and Briggs have a slight flat spot then take off little hesitant..but won't fall on its face..
 

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Discussion Starter #8
You need to get some time on that engine it's going to smoke a little bit till it's got a good 10 hrs or maybe 20 to break in and burn off assembly lube ECT..make sure you have a good ground and good battery brand new engine gets brand new battery...in my book on repowers..also make sure every electrical harness point is lubed with dieelectric and tight maybe new key switch too..is this a kit from the guy that does Honda repowers I did a sew Briggs vanguard 23hp to my 316..
I went with "Repower Specialists" which was a mixed bag for sure. They were less expensive and included a new PTO clutch which they claimed was better designed than the original clutch. I guess time will tell about that. They sent me the wrong hub adapter initially, instructions were unneccessarily scant and the hub adapter was poorly milled, but the tech help was excellent and knowledgable, so... as i said mixed review on them. I think I just need to give it some time as you say!
 

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Discussion Starter #9
Also drain all fuel make sure hose in tank is good and not roted off clean fuel lines..
Yuo, I drained and cleaned the tank. I replaced all the fuel lines and even fixed the reserve fuel line which had rotted and fallen into the tank (as they tend to do I understand). So I don't think it's fuel delivery.
 

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I think my GX630 came from repower specialists. It was originally purchased and installed on a Steiner and had 150hrs when I got it. I moved it to my 318 with a few modifications and a home made muffler. I thought the adapters from repower looked well built. The Steiner did not have an electric PTO, so I had to adapt mine to fit. I think you might be better off with the PTO they sold you.

Mine does not smoke at all when I start it - and throttles up well once it warms up a bit. I agree that you might need a few hours of break in to work the lube out.

One weird thing that I've never figured out is that when mine is cold, it does not fire right up like Hondas are known for. If I choke it, let the fuel pump run for a bit (I put an electric pump on), and just turn the key, it will take 8 seconds or so before it fires up. Here's the weird part...If I just barely tap the key once (maybe one rotation of the engine) and then tap the key again to start, it will fire up instantly. I suspect it relates to a decompression valve, but it is amazing that it will literally take 8 seconds of cranking if I don't to the tapping thing.
 
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