carb not getting gas???

[Basscat 1]

Re: carb not getting gas???

Compression looks ok. Thats good.<br />Sounds like your on the right track. You need to clean the magnets with some crockus (sp?) cloth. <br />Let the dealer test the coils for you.<br />Do you have a manual? If not you need to get one. <br />Keep working the spark issue.

 

[mcarlito]

Re: carb not getting gas???

Thanks Basscat,<br />Thanks for the input, I'm taking the magnito completely apart tonight and give a good cleaning. BTW I only have one coil. I have two manuals and I refer to both. I also have a parts manual. I'll let you know what I find.<br />thanks again.

 

[mcarlito]

Re: carb not getting gas???

So I just came back in, I ran out of sunlight. I have to coment on the inside of the magneto. The magnets that rotate and receiving magnets on the housing of the magneto is very rusty and pitted. I took some 400 wet dry sand paper and carefuly sanded the surfaces dry. I got them as clean as I can. wiped them clean using a lint free rag and Q-tips to gather up the dirt. Tomorrow I will try to get the coil checked. In my manual it talked about the distributor cap having a spring that makes contact with the rotor. Mine doesn't have a spring, should I be conserned?? I mentioned that I have a small crack in the coil, wonder if this is a bad thing or not.<br />Thanks for all the input. I let you know what I find out.

 

[jfm1]

Re: carb not getting gas???

a crack in the coil can cause weak spark it could jump to ground

 

[Basscat 1]

Re: carb not getting gas???

One way to check that would be to crank the engine at night in the dark, or your case attempt to start the engine. Look for sparks or arks around all of the ignition parts.<br />I am not sure about the spring, my boat doesnt use that type of ignition.<br />Maybe somebody else knows?

 

[mcarlito]

Re: carb not getting gas???

So it's Sunday and this is what I've done so far. I took the magneto off and cleaned it real good. There was much rust on the inside so it took some time to get it clean. I put it back together and reinstall the old coil, which I only have one of, and with out reinstalling it onto the boat I took a volt amp meter and set it to a scale of 20DCV. I had my son turn the rotor/pully on top of the magneto while I took readings as I touched the negitive probe to the top of the rotor and the positive to the top of the coil. The readings I got were 8.0, 6.0, 12.0, all in that range. It depend how fast my son was turning. Also I did one other experiement. I went out to the motor, placed the distribitor cap on the magnet and turned the pulley/rotor. I had a spark plug hooked up and I getting a spark, also I got a shock because I was grounding out. The spark was not a bright blue and after a few turns it stopped creating spark at all. Tomorow I'm having the coil tested. As I said there is a small crack on the coil approximately 1/4" long. It's not open but it is a crack non the less. Any input so far would be a great help. I have to hang some blinds for my wife then I'm going to take the magento out and do a complete hook up and turn the motor over to see what happens. As long as it doesn't rain.<br />Thanks greatly.

 

[mcarlito]

Re: carb not getting gas???

I just want to do another post in hopes of getting some feedback. My son and I reinstalled the magneto onto the motor. Please read my previous post to get the complete story. So we double checked the point setting, we made sure the timing makes were where they were supposed to be, we sprayed gas into each cyclindar and into the carb, then we tried to start it. Nothing, not a burb or a pop. So I took off out oneof thespark plugs and grounded it to the engine, then I slowly turned the engine to find TDC on that cyclindar, I put a soft wooden dowel into the cyclindar to mark TDC. Then I had my son try to start the engine, every time the piston hit TDC, I got spark from the spark plug. I would say that the timing is set to a point where I should be getting something. THEN I took same plug wire and put a screwdriver into the cap, I had my son turn the engine over while I held the screwdriver next to ground. The spark was very weak and I could only get spark at 1/16" away from ground. <br />Any input to all would help me when I go and get t he coil checked out. Do you think it's the coil?????<br />thanks again.<br />Mike and son Zach

 

[tabbott]

Re: carb not getting gas???

Probably so. Have the coil checked and post back. I'm interested in seeing if you get to the bottom of this problem. It appears that weak spark seems to be the redundant in this case. Perhaps the fuel pump may be at fault or faulty but with the spraying of fuel manually into the carb you should at least get a cough. Test the coil. Whats to lose? <br /><br />tabbott

 

[jmc03021013]

Re: carb not getting gas???

i had one that had a similar problem, slowed down on lake, really rough idle, once i shut it down, it would not restart. how is your woodruff key?

 

[rwise]

Re: carb not getting gas???

sounds like you are getting close to finding the problem. bad coil? are the magnets good and strong?

 

[mcarlito]

Re: carb not getting gas???

Thank you for responding to my two posts. Here is more answers and some questions. I have been working on the fuel pump, but I moved to electrical when I sprayed gas into the cyclinders and didn't get anything. I might have to return to the fuel pump but not at this time.<br />My question is what is woodruff key?? where is it located?? The key on the magneto is there and in good condition if that answers this question.<br /><br />Quote: are the magnets good and strong? <br /><br /> I don't have enough hands on experience to answer this question. This is the first magneto I've taken apart. But if I had to take an educated guess, I would say that I would expect the magnets to have a stronger feel to them. If I use the expression that they feel tired, I hope this helps some what.<br />thanks again for all your help I'm bring the entire magneto into the shop during lunch to have it checked out including the coil and spark plug wires and the magnets as well. I will certainly do a follow up post on my trip.<br /><br />We may not be on the water but my son and I are learning quite a bit. This may be the only way to get to know your engine.

 

[jfm1]

Re: carb not getting gas???

the woodruff key is the keyway on the flywheel

 

[mcarlito]

Re: carb not getting gas???

Thanks Jim,<br />I haven't look under the manual pull start yet! I might have to get to that and check. Is it something that is just a visual inspection or do I have to pull the flywheel??

 

[Basscat 1]

Re: carb not getting gas???

You will need to pull the fly wheel to inspect it. It should be tight with no wear to it. <br />Its sounding like you may have a weak coil. Keep us informed.

 

[mcarlito]

Re: carb not getting gas???

<br />My son Zach and I got the motor running last night. As some of suspected it was the coil. The magnets on the magneto are good and I have great spark now. That motor couldn't wait to start, one or two cranks and it was off. <br />Observations we made in reinstalling the magneto to the engine were these. We attached the magneto to the engine, then I wanted to check for spark one more time before trying to start it. Without connecting the kill switch wire and the other wire to the magneto {I believe it comes from the ignition} I stuck a screw driver into a spark plug cap and turned the top of the magneto. We got good spark, things were good. So I hooked up the wires to the kill switch and to the magneto and I got no spark????? We started to look for a short some where but what I did was to disconnect the wires from the magneto and then connect them again and we got spark!!! My only observation was it was the capasitor. After finding no shorts, no open wires, we proceeded to connect everything up. That's when the engine just kicked right over. It's running rough, could be the jets, I'll have to spend time adjusting those. We still don't know what happened to that spark at the beginning of our test?? Is it the capasitor?? It is new. <br />I went in to have dinner then came out and it started right up again. A very nice feeling. Now it's been sitting all night and will be sitting all day so I'll see what happens tonight again.<br />In closing, I just want to thank all the people on the list that offered their advise and opinions on this topic. I know it started out with a carb problem but because on my lack of experience it me longer then most people to get to the heart of the problem. A real mechanic would have seen this very quickly. It was a good learning experience and it's not over yet. But it's running and that is a very good thing.<br />Again thank you and I hope other boaters will get something from this post. I know I have. Now the kids want me to get on water skies, Oh brother.<br /><br />"So what did the buddist monk say to the hotdog vendor, make me one with everything"

 

[mcarlito]

Re: carb not getting gas???

delete message

 

[jfm1]

Re: carb not getting gas???

Way to go glade she fired-up , hope you and the kids can enjoy the rest of the summer on her good luck

 

[Basscat 1]

Re: carb not getting gas???

Glad you found it. Hope yall enjoy it.

 

[rwise]

Re: carb not getting gas???

its a good fealing to fix it your self, now tune it up and off to the lake to relax!

 

[tabbott]

Re: carb not getting gas???

Hello, <br /> Glad to know its running. A little fine tuning and you'll be on the water in no time. I would really like to say that I am impressed that you have included your son in this venture. I'm sure that he'll never forget it. You should be commended for sharing this experience with Zach. If we had more dads like you we would probably have less troubled youth in America. Good job and lots of luck to you both.<br />tabbott