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  #41  
Old 03-04-2011, 08:17 PM
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ok will do that first thing tomorrow. ill try to get as much done as possible tomorrow and post some pics
  #42  
Old 03-04-2011, 09:22 PM
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Don't try using electrolysis with just a transformer unless you use/the transformer has a rectifier as well... Transformers output AC current.
  #43  
Old 03-05-2011, 07:56 AM
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Ooh. I was assuming it was a 120VAC to 12VDC transformer. Good thing you pointed that out!
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  #44  
Old 03-05-2011, 09:27 AM
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toystory yoour right its actually a 120vac to 12vdc. and i got some work done on the motor today. i took most of it apart to clean it and such but i cant get the thingy behind the starter cup off. i think its the flywheel but im not sure. http://thumbs.ebaystatic.com/pict/400198723456_0.jpg

and in the process of trying to get it off i broke a fin. is that bad??
  #45  
Old 03-05-2011, 09:49 AM
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That's the flywheel, and yes, that's bad. How'd you break the fin off?
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  #46  
Old 03-05-2011, 10:38 AM
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uh oh... i would say get a new one, with a broken fin its unbalanced.
  #47  
Old 03-05-2011, 11:26 AM
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That, AND there could be an unseen fracture in the casting- the balance issue could possibly be dealt with, but an unseen flaw could spell disaster. Okay you spell disaster "D-I-S-A-S-T-E-R". But you know what I mean. I'd start looking for a new flywheel.
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  #48  
Old 03-05-2011, 07:10 PM
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well to take the flywheel off i banged it a couple of times with a hammer and then used a a crowbar to pry it offf well yeah i was able to get it off and just left the carb how it was and tried to start it up. i also took the head off and clean off some of the grease that built upp in there. well yeah the engne didnt strt when i tried it. what other problems might i have? is it because the choke doesnt work and the carbs not in too great condition?? i didnt put a lot of gas through it either. how do i check for spark?
  #49  
Old 03-05-2011, 07:20 PM
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to check for spark you need to turn over te flywheel. a puller is the right way to remove a flywheel, but i dont have a puller and the way i do it is loosen the nut half off the shaft, pick up the engine by the flywheel only, a few inches off the ground, and have a buddy tap the nut with a hammer. with small 2 strokes you can hold the flywheel and do it with one hand tho.
  #50  
Old 03-05-2011, 07:26 PM
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Quote:
Originally Posted by Bluethunder3320 View Post
to check for spark you need to turn over te flywheel. .
i can turn the flywheel over but then what do i do?
  #51  
Old 03-05-2011, 07:30 PM
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There's a couple ways to check spark. Easiest is with a spark tester. If you don't have one, remove the spark plug, and reconnect the lead to it. Now- there's a couple ways to handle this, here is the best way I have found- Take a length of copper wire, and strip 1" of insulation off one end, and 2-3" off the other. Loosen a bolt on the engine, wrap the short-stripped end of the wire around the bolt and retighten. Now, wrap the long end several times around the threaded portion of the spark plug. In low light, yank the pull-start a few times. Spark will be obvious if everything is okay. Make sure plug is in good condition and correctly gapped before testing. If unsure of spec, 0.030" is a good ballpark gap. You can skip the whole wire thing and just hold the plug tightly against a clean bare metal part of the engine, but it is difficult to do while pulling the starter. The wire trick makes that much easier...
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  #52  
Old 03-05-2011, 07:40 PM
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ok ill have to check that out tomorrow. what can i do about the carb because thats my main concern right now? i left it sitting in some wd40 all day and the choke still doesnt move, everything else in the carb looks good, but that choke is really killing me.
  #53  
Old 03-05-2011, 07:51 PM
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Be patient, let it soak a few days. You can try applying gentle heat, too.
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  #54  
Old 03-05-2011, 07:58 PM
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can i just let the whole carb sit in some sort of solution?? like a mix of water and something else thatll work kinda like wd 40, because thats not too cheap and neither is gas soo. maybe water and like baking soda??? idk give me ideas
  #55  
Old 03-05-2011, 08:07 PM
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I'm not sure I'd soak in water. But I've never had to do that, so I don't know...
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  #56  
Old 03-05-2011, 08:26 PM
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how abot giving it a good spray with some wd 40 and then leaving in some really hot water so that it breaks it down while cleaning it at the same time. ill try it out tomorrow and let you guys know how it goes.
  #57  
Old 03-06-2011, 02:33 PM
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Quote:
Originally Posted by toystory_4wd View Post
There's a couple ways to check spark. Easiest is with a spark tester. If you don't have one, remove the spark plug, and reconnect the lead to it. Now- there's a couple ways to handle this, here is the best way I have found- Take a length of copper wire, and strip 1" of insulation off one end, and 2-3" off the other. Loosen a bolt on the engine, wrap the short-stripped end of the wire around the bolt and retighten. Now, wrap the long end several times around the threaded portion of the spark plug. In low light, yank the pull-start a few times. Spark will be obvious if everything is okay. Make sure plug is in good condition and correctly gapped before testing. If unsure of spec, 0.030" is a good ballpark gap. You can skip the whole wire thing and just hold the plug tightly against a clean bare metal part of the engine, but it is difficult to do while pulling the starter. The wire trick makes that much easier...
okay so when i took the sparkplug off to test it, and went to put it back on it wouldnt go in. and then i notices some of the threads from the head are gettting off as i try to put the spark plug in. WTH!!! how bad of a situation am i in?
  #58  
Old 03-06-2011, 04:24 PM
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Oh he//. Google "Helicoil insert for spark plug". It's either that or a new cylinder head.
How'd the spark test go?
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Wrench, Wheel, Wreck, Repeat...
  #59  
Old 03-06-2011, 04:30 PM
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found this on ebay. should i take it? seems pricey but idk what a cylinder heads worth?

http://cgi.ebay.com/KOHLER-K91-4hp-e...item483f4ea5f2
  #60  
Old 03-06-2011, 04:35 PM
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I would... Looks like you have to act pretty quickly. The Helicoil kit would probably cost more.
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Wrench, Wheel, Wreck, Repeat...
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