|
Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
|
Thread Tools | Display Modes |
10-19-2011, 09:02 PM | #1 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
|
G1 Problems: cranks, but will not run
My G1 was running great about a week ago. Then...I started to have to run with the choke on. Now....it will crank like crazy, but it will not run.
Muffler has been BBQ The air filter is clean and sealed The fuel pump is clean and fuel is flowing to the carburetor My plug looks good and getting spark The spark is jumping about a 3/8" gap The spark is orange if that matters (I seem to remember reading that the spark should be bright blue) I am getting compression At first I thought something might have 'broken loose' inside the muffler and my exhaust was stopped up, but that is not the case. I even shot a tiny bit of ether/starting fluid into the carb just to see if it would fire, and nothing! So....what do I do next? Thanks, Kevin |
Today | |
Sponsored Links
__________________
This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum |
|
10-20-2011, 05:06 AM | #2 |
Gone Wild
Join Date: Jun 2009
Location: Heluvabump,VT
Posts: 623
|
Re: G1 Problems: cranks, but will not run
Sounds like you covered all the possibilities except crank seals:
http://www.buggiesgonewild.com/gas-y...tting-old.html |
10-20-2011, 07:56 AM | #3 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
|
Re: G1 Problems: cranks, but will not run
Thanks GMB74! I guess it is time to get a SM and get to work on that little bitty engine. I just finished working on my Subaru Forester last weekend. My front crank seal was leaking on that sucker, but it was time for my 105K maintence too. So I ended up replacing my TB, WP, front seals, and fixing a leak in the OP. I guess I am warmed up now, and ready to work on my Yamaha! I will pull it and start working on that sucker this weekend!
|
10-20-2011, 05:25 PM | #4 |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,442
|
Re: G1 Problems: cranks, but will not run
what was your compression? it might not be the seals, usually with bad seals it will run just not have much power.
|
10-20-2011, 07:11 PM | #5 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
|
Re: G1 Problems: cranks, but will not run
I do not know the actual compression #s. I am just saying that I have compression based on the fact that I have resistance when the piston is moving. I do not have the means to get the actual compression. I do not have that gauge.
I have been running the cart with the choke pulled all the way out for some time now. It was running strong until about a week ago. I was climbing a big hill when it did die a slow death. |
10-24-2011, 08:38 PM | #6 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
|
Finally did Compression Test...
I finally did a compression test this afternoon, and it is not good news.
I did it several times and the numbers varied between 65 psi to 80 psi. So I guess it is time for a rebuild. So my question is, What do I need to do next? Are there any good rebuild threads out there? videos? Thanks for any advice. Kevin |
10-25-2011, 09:53 AM | #7 |
Not Yet Wild
Join Date: Nov 2007
Posts: 39
|
Re: G1 Problems: cranks, but will not run
I did a G1 rebuild write up a while back, here is the link to it.
http://www.buggiesgonewild.com/gas-y...html#post69310 |
10-25-2011, 11:19 AM | #8 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
|
Re: G1 Problems: cranks, but will not run
Thanks Porterc39! It is always good to follow in someones footsteps, and I am pretty good at reading directions.
|
10-26-2011, 07:56 AM | #9 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
|
Re: G1 Problems: cranks, but will not run
I have gotten loads of good advice, and it looks like I am going to start out by replacing the crank seals and going through the top end. I will start this weekend. Thanks for all the great advice I have gotten. I am sure I will be looking for more before it is all over with!
Kevin |
10-26-2011, 09:08 AM | #10 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,445
|
Re: G1 Problems: cranks, but will not run
Usually you can look behind the flywheel and behind the clutch and see oil leaking out the crank....that is bad seals. Note a 2 stroke the intake air (air and fuel actually) goes into the crank, the piston comes down and pushes the air up the transfer ports into the cylinder, the piston closes the ports to get compression while sucking the next cycle of air into the crank. This is how the bad seals mess things up, they can change the air/fuel mixture as well as leak compression out of the crank area. This does not mean you have bad rings, though if they are not fresh I would do them anyway because worn rings have a much larger effect on power than in a 4 stroke, a 2 stroke will only have max power with a new bore and rings. Usually bad seals starts as needing choke to get it started and poor running at low rpm. Also check for any leak at the intake area, make sure the reeds are closing.
|
|
|
Similar Threads | ||||
Thread | Forum | |||
93 Club Car cranks, fires once, then nothing | Gas Club Car | |||
94 gas DS club car - cranks but gas engine won't fire | Gas Club Car | |||
can i swap cranks to fit clutchs | Big Block Talk! | |||
No Start-just Cranks-98 Ezgo Gas | Gas EZGO | |||
cranks fine | Gas EZGO |