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unirambler

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  1. I would say that the smoke gets worse - thicker and cloudier - the warmer the engine gets. But I don't think it is any worse than when I first got it running. It may be a little better - or I am just driving faster so I don't see it as much!
  2. Well, I cleaned the plug to see if it got black very quickly but it really didn't in the ~10 minutes I ran it to warm it up. It still seems to me that the longer I run it, the thicker the smoke coming out is. Anyway, I tried the compression test. It looks to be reading low - about 123psi - though I tried it multiple times and one time it read 150 but the rest were 123. I tried putting in some oil and it didn't seem to really change - might have gone up to around 125 or 126. The manual says it should be 142-199 and the lower limit is 114. So, I am going to do as you suggested, Mech, and pull the head and barrel and go from there. 🙂 What timing! As I was typing the above, you just replied again. I am not really sure about the drive line. Everything seems to work but it definitely has drag but that could be the brakes. The clutch sometimes seems that it may be slipping and then seems to grab, but sometimes it seems to work fine. Once in a while, it will rev up but not really move and then suddenly take off - mostly it seems to happen if I am trying to turn sharply. I haven't checked the transmission fluids yet though. I am planning on getting it jacked up and going over the drive train now that it is running. I will probably do that before rebuilding the top end so I know whether it will be worth it. I wouldn't mind running it with the burning of oil but it really puts out a lot of smoke. My neighbors don't really appreciate having to close their windows when I ride by. 😉
  3. Unfortunately, the King Quad has a vacuum-driven petcock without an off position. I'll try disconnecting the vacuum line and see if that stops delivering fuel to the carb.
  4. One question for you all. I have the compression tester now. How am I supposed to keep fuel from being pumped in to the cylinder when testing the compression or doesn't it matter if it is? Asking because I pulled the manual starter to clear out the marvel mystery oil and got a lot of oil sprayed everywhere but after that cleared out, I was still getting clouds of gas as the engine turned.Since the petcock doesn't have an off position, do I need to disconnect the fuel line or vacuum line or something?
  5. Here is a pic of the spark plug. This is the same plug that was in it when I got it and I haven't cleaned it at all. With how much smoke is coming out the exhaust, I would think it would foul the plug fairly quickly if it was burning it in the cylinder but this things starts and runs well. I should be receiving my compression tester today so hopefully I can check the compression in the next couple of days and let you know what I find.
  6. I hoped to get back more quickly but life has gotten on the way. I sprayed some carb cleaner in the cylinder to soak for a couple of days to try to loosen the rings up. I then put some marvel mystery oil in before starting it. The quad started easy, ran well and had no issues. I drove the quad around to warm it up. I didn't detect any crank case pressure when I undid the oil filler. However, it seemed to smoke more once it was warmed up. After running it, I parked it and put more Marvel Mystery Oil in the cylinder while hot and it has been sitting that way since. I hope to find time soon to run it again and see if that helped at all. While reading on here, I also found another thread about a smoking quad and they mentioned the possibility of oil leaking directly in to the exhaust pipe - maybe from a leaking head gasket or exhaust port, I can't remember which. I am wondering if that is the issue more than the rings. How could I determine which it was without ripping the engine apart? If it smokes as bad after this next ride, I am going to just do a tear down of the top end and rebuild. While I am at it, I may pull the entire engine and go over the quad from top to bottom. This will allow me to get a better idea of the shape of every system on the quad and hopefully end with a great running quad that will last for a while. If I do that, I will start a new thread and document it all.
  7. Not very much. Without the throttle cable, I basically idled it some - maybe a few minutes total. With the throttle cable yesterday, I had it running for about 5-8 minutes. It was running better by the time I finished. In fact, I had to turn the idle down because it started idling really high.
  8. I believe that in the attached picture, the hose that is circled in red and not connected to anything is going in to the crankcase, so I don't think it is pressurized. I could see the rings being oiled up and sliding instead of scraping. I'm just not sure how to get it under load with the state it is in currently. My driveway is on an incline, so I could try to use that or, if that isn't enough, we have a fairly steep hill right behind us and I could go up that. I'll try that tomorrow. If those don't put enough load on the motor though, I can't think of how to put more since it is still in pieces. I also have to be careful because the brakes don't really work currently and what goes up the hill, must come down! 😮 Gwbarm - I also got Marvel Mystery oil and can put some of that in. Should I wait until after I try to give it a load though so I don't compound the issue of floating rings, if that is what is happening?
  9. Welp, I finally had some time to put a throttle cable on the quad. I was able to try running it and it seems like all of the modes work (2W, 4W, 4W locked, forward, reverse, etc.). However, I am now able to say without doubt that the smoke is burning oil. I didn't see the blue-ish tinge to it before but with the longer running, I had black oil dripping from the exhaust. I was surprised it was so black since the oil in the sight glass is clean but I guess that is from going through the cylinder. A little more info that I didn't know might be important until I saw the oil coming out of the pipe. When I first got it, I couldn't get it to turn over via the pull rope unless I opened the compression release. Even then, it was super hard to pull - I couldn't even get a spark. I got a battery connected and even then, it wouldn't turn over unless I opened the compression release. Once I did that, it would start up and run fine. After a little running, I could then pull the rope much easier - though still needing the compression release open - and start it. Also, the electric start now works great - I don't need to open the compression release with the electric start - and it starts right up and runs well (other than the cloud of smoke). So, I am assuming that I will need to re-build at least the top end. I am wondering if the rings were slightly seized when I got it and that was why it was hard to move. Is that how you all that know more than I do about these engines see it? Could there be any other reason that it is burning so much oil but running great if not an issue with the rings? I don't have a compression tester yet but hope to get one soon. Thank you all for your help!
  10. Gwbarm - Yes, I believe it is about the same as the Suzuki I have. The end of the cable was there (though hidden by the frame) but the cable was broken further up in the sheath. That is why I didn't know it was broken until I tried reconnecting it. Once I receive the new throttle cable and end part, I'll be able to try to ride it. In the meantime, I'm going to change the fuel and fuel filter, add the new voltage regulator, add an air filter and do some general cleaning up and re-connecting of vacuum lines and cables.
  11. Good thought. I'll check and see if it happens to be there. As I was beginning to try to re-connect the throttle, I found that the throttle cable is broken also, so got to order a new one. I wonder if that was the original problem?
  12. This pictures are helpful. I looked through the can of parts that came with the bike and that part is not there. So, I'll have to find one before I can re-connect the throttle cable. I've been really surprised how well this thing runs, even with bad gas! It starts up super easy and runs great. I don't understand why they were ripping it apart and saying it didn't run. I haven't fixed anything yet and have no problem with it running. I expected to be ripping it apart even more and troubleshooting, not having it running already!
  13. Thanks for responding, Mech. Is the brass barrel removable or permanently fitted? I'd like to at least temporarily re-attach the throttle cable if I can. If it is removable, I'll have to figure out where to get one. I was able to get the quad to start with some starting fluid. Once I did that, I was able to get it to run with the fuel tap in the reserve position (there isn't much fuel in the tank). The starting fluid was able to start the quad, however, it wouldn't run without the choke all the way up (from my reading, it sounds like the choke is off there). I then found that if I worked the throttle plate by hand, the quad would run and responded very well. However, there was a lot of smoke. Could it be the super old gas or from sitting so long? I haven't drained and filled the tank with fresh gas yet because I was planning on taking the carb apart to clean it. I think the smoke was white, but it may have been slightly blue??? Not sure. It didn't smell like burning oil, more like a carb that isn't adjusted right and is running super rich. I'll try to get a video of it tomorrow if that would help identify what is causing it. The oil level looks good (I haven't changed that yet either - I as just trying to get it running first) and it looks clean in the sight glass. It also still does not have an air filter or voltage regulator on because I haven't gotten them yet.
  14. My son and I were "gifted" a KQ300 that doesn't run. I am beginning to try to figure out what is happening - and what is missing/disconnected. I connected a battery and found that it does have spark. I was able to get it to fire briefly when I sprayed some carb cleaner in to the carb. So, I am assuming that it is just a fuel issue. I'll begin by checking the stopcock and fuel pump and then take the carb off and clean it. However, I am finding other things that are missing and not sure if they might affect this. I tried to test the voltage regulator/rectifier only to find there isn't one. I know there are a bunch of hoses disconnected and possibly some missing. Also, the air box was removed and all parts of the air filter are missing. The throttle cable is disconnected but I did get the cover that needed to be removed to disconnect it. Do you all see anything else that looks like it is missing from the pictures below? Is there anything else I should test for it not firing? Thanks for any help. This is my first quad so I am learning as I go.
  15. Nice! Gives me hope I'll get ours running. I found last night that it turns over but there is spark, so I'll begin troubleshooting that this weekend. I'll start a thread in the Suzuki ATV forum soon.
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