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| Hi All
I have an old G-38 on my modified Roadrunner. It's not a hovering aerobat, but it is a lot of fun & can do quite a bit. The engine is old & my friend put a carb kit in it last summer and used the setting guage to get it just right. It ran really nice, but after a few flights, it got hard to start. You really had to choke it & then it would die after it ran out of the fuel you just choked in it. If I put my hand over the carb intake while it was running & choke it a few times, it would start running fine and run great through the flight. We just had a nice day here, so I got it out and couldn't get any fuel to choke into the carb. I finally squirted some fuel in the intake and did the hand over the intake quickly a few times after it started to get it running. I tweaked on the needle valves to get a smooth slow idle and a good top end. There was just a tiny bit of hesatation on idle to full speed & if the motor sat idleing for quite awhile, it would lag worse. I'm getting 8640 rpms with a APC 18-8 and no cowl around it.
Any ideas on what to try? About a month ago I had it out, choked it & it started on the first flip - gotta get that back somehow!
Thanks
Terry Peterson | |
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Terry,
ANYTIME your engine changes in how it starts IE: just like you describbed, there's a problem lurking within your carb. The
most common problem is the internal filter screen. Remove it, clean it, or replace it. Also, check the float diaphragm. If its stiff OR if its wavy looking, replace it too.