Pulling a .82 K&B out of 10 years of storage?...
#26
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Location: Canandaigua, NY
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RE: Pulling a .82 K&B out of 10 years of storage?...
Well, it wasn't a fluke! I started it again tonight to tune the engine more. This time I had cooling water running through the engine. It got dark before I finished, but I noticed that I had a hard time getting the engine to shut down even with the throttle all the way closed. The carb still had a small opening for air to enter. There is a low speed adjustment on the carb. I think it adjusts the throttle stop. Should I adjust this so that there is no opening when the throttle is all the way closed?
I think I am still rich as the engine hesitates a bunch when adding throttle. Could a rich setting make the engine harder to shut down? I'll definitely tune the engine more, but it sure doesn't seem responsive.
The reason for this concern is that my test pond on my property is on the small side. I want good throttle control to help avoid an accident.
Thanks for all the help!
I think I am still rich as the engine hesitates a bunch when adding throttle. Could a rich setting make the engine harder to shut down? I'll definitely tune the engine more, but it sure doesn't seem responsive.
The reason for this concern is that my test pond on my property is on the small side. I want good throttle control to help avoid an accident.
Thanks for all the help!
#27
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RE: Pulling a .82 K&B out of 10 years of storage?...
Sounds like all you need is to adjust that throttle stop and you should be OK. It might even run with the throttle all the way closed. Some will, if they were made loose between the barrel and the body of the carb. It lets lots of unmixed air to bleed through into the engine with the mix and makes it stumble around at idle, or make you hold a higher than wanted idle to keep it running. I have used red grease with good results on the end of the carb barrel to help seal it to find out if theres a difference in idle to single it out as a problem.
That throttle stop screw can be backed out more than needed. Now that your setting up your throttle the way to go is make sure your trim lever is all the way down for the throttle, and adjust the linkage for the throttle to be just past closed. Check this also by turning the engine side to side also while keeping an eye on the throttle barrel and see if it moves. That will tell you if your throttle cable is mounted solid. Things like that have played tricks on me before.
When you start it, just remember to turn your throttle trim up and it should idle high enough not to stall out on the pond when your off the throttle (personal choice here on that).
If not, change the arm length to get more travel. Some radios have end point adjustments you can just program in the TX.
That throttle stop screw can be backed out more than needed. Now that your setting up your throttle the way to go is make sure your trim lever is all the way down for the throttle, and adjust the linkage for the throttle to be just past closed. Check this also by turning the engine side to side also while keeping an eye on the throttle barrel and see if it moves. That will tell you if your throttle cable is mounted solid. Things like that have played tricks on me before.
When you start it, just remember to turn your throttle trim up and it should idle high enough not to stall out on the pond when your off the throttle (personal choice here on that).
If not, change the arm length to get more travel. Some radios have end point adjustments you can just program in the TX.
#28
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RE: Pulling a .82 K&B out of 10 years of storage?...
ORIGINAL: Blackout
Well, it wasn't a fluke! I started it again tonight to tune the engine more. This time I had cooling water running through the engine. It got dark before I finished, but I noticed that I had a hard time getting the engine to shut down even with the throttle all the way closed. The carb still had a small opening for air to enter. There is a low speed adjustment on the carb. I think it adjusts the throttle stop. Should I adjust this so that there is no opening when the throttle is all the way closed?
I think I am still rich as the engine hesitates a bunch when adding throttle. Could a rich setting make the engine harder to shut down? I'll definitely tune the engine more, but it sure doesn't seem responsive.
The reason for this concern is that my test pond on my property is on the small side. I want good throttle control to help avoid an accident.
Thanks for all the help!
Well, it wasn't a fluke! I started it again tonight to tune the engine more. This time I had cooling water running through the engine. It got dark before I finished, but I noticed that I had a hard time getting the engine to shut down even with the throttle all the way closed. The carb still had a small opening for air to enter. There is a low speed adjustment on the carb. I think it adjusts the throttle stop. Should I adjust this so that there is no opening when the throttle is all the way closed?
I think I am still rich as the engine hesitates a bunch when adding throttle. Could a rich setting make the engine harder to shut down? I'll definitely tune the engine more, but it sure doesn't seem responsive.
The reason for this concern is that my test pond on my property is on the small side. I want good throttle control to help avoid an accident.
Thanks for all the help!
I've been running gas lately since it is way easier but I've got 6 nitro engines begging to be run !
You might be a bit rich right now but I wouldn't go too lean on the stand. I'm sure the other guys with nitro success will chime in on this.
#29
My Feedback: (1)
RE: Pulling a .82 K&B out of 10 years of storage?...
I am anxious to try out my third channel mix after a season of beginning without one. If I didn't have nitro tuning experience (airplanes) before trying it, I would have been totally lost.
Even knowing where and what all the variables were (prop, fuel, plug, ect.) I still had a hard time guessing how fat the needle should be when its in the water.
It almost does take bringing it in at least a couple times after your running and up to temp to get it dialed in. The third channel will be sweet and seems almost necessary now. It controls the very heart of the system that carries a big price tag.
Even knowing where and what all the variables were (prop, fuel, plug, ect.) I still had a hard time guessing how fat the needle should be when its in the water.
It almost does take bringing it in at least a couple times after your running and up to temp to get it dialed in. The third channel will be sweet and seems almost necessary now. It controls the very heart of the system that carries a big price tag.