kengentry5000
Active Member
- Messages
- 36
- Location
- Greensboro, NC
I was running the other day fine. The next time out I switched by to Coleman camp fuel and Yamaha dirt-bike 2 stroke oil (oil used for several gallons now) at 25:1 ratio. The engine ran the same as always for 10 minutes and then it slowed down over a few seconds and then shut off. I restarted it after a few pulls and ran it again but when I came off the throttle it died again.
I dumped the camp fuel mix and went back to gasoline and oil at 25:1 because that is the only variable that had changed and I didn't have any wrecks on my last outing. I couldn't get the engine to turn over.
Finally I got it going but it won't idle. It just dies if left at idle. I got it going and kept the throttle up and it runs fine at moderate to high throttle but will die if allowed to idle.
I took the carb apart somewhat and did not find any debris on the diaphrams. I put the engine back together and tried it again and it still won't start.
I switched out my plug for a spare CMR7H that I'm pretty sure is a good plug. Both plugs have visible spark if held outside the engine against the head while pulling the starter cord.
The way the engine died off like it did and the way it will run at moderate to high speed I am confused at what I am fighting here. I have not checked for dirt or gapping on the coil yet. My engine is going to be a real pain to remove because the engine screw heads are partially cammed-out.
I did not know how many parts I should remove from the carb because I want to be able to get it back together. I could take it apart again and take off the low and high screws this time. I could soak it in carb cleaner to try and clean it. The diaphrams did not have much debris at all on them, though.
What do you guys think?
I dumped the camp fuel mix and went back to gasoline and oil at 25:1 because that is the only variable that had changed and I didn't have any wrecks on my last outing. I couldn't get the engine to turn over.
Finally I got it going but it won't idle. It just dies if left at idle. I got it going and kept the throttle up and it runs fine at moderate to high throttle but will die if allowed to idle.
I took the carb apart somewhat and did not find any debris on the diaphrams. I put the engine back together and tried it again and it still won't start.
I switched out my plug for a spare CMR7H that I'm pretty sure is a good plug. Both plugs have visible spark if held outside the engine against the head while pulling the starter cord.
The way the engine died off like it did and the way it will run at moderate to high speed I am confused at what I am fighting here. I have not checked for dirt or gapping on the coil yet. My engine is going to be a real pain to remove because the engine screw heads are partially cammed-out.
I did not know how many parts I should remove from the carb because I want to be able to get it back together. I could take it apart again and take off the low and high screws this time. I could soak it in carb cleaner to try and clean it. The diaphrams did not have much debris at all on them, though.
What do you guys think?