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Old 09-29-2013, 12:27 PM   #1
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Angry Kyosho inferno gt.....engine

Hi.....I am trying to rebuild my grandson kyosho inferno gt. I have it all together except I am have problems getting the stock engine to run. I need help with the factory settings for the carburator of whats a inexpensive engine replacement. Whats the best engine for a easy swap out. I own 9 other nitro vehicles but this car is getting the best of me trying to get it to run.......Thanks in advance.....
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Old 09-29-2013, 01:54 PM   #2
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Hi.....I am trying to rebuild my grandson kyosho inferno gt. I have it all together except I am have problems getting the stock engine to run. I need help with the factory settings for the carburator of whats a inexpensive engine replacement. Whats the best engine for a easy swap out. I own 9 other nitro vehicles but this car is getting the best of me trying to get it to run.......Thanks in advance.....
If you have the GXR .28 pull start motor then one full turn in from flush on both needles will get you up and running bud !! If you want to upgrade get any buggy .21 motor bump start motor (Dynamite mach 2 .21 for $139.00 ) and get the stock motor mount or Dragon racing has an excellent one on ebay for $15...you will need to upgrade to the stock 3 shoe clutch setup from the current generation race spec also...my .02 cents...
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Old 09-29-2013, 02:28 PM   #3
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Hi.....I am trying to rebuild my grandson kyosho inferno gt. I have it all together except I am have problems getting the stock engine to run. I need help with the factory settings for the carburator of whats a inexpensive engine replacement. Whats the best engine for a easy swap out. I own 9 other nitro vehicles but this car is getting the best of me trying to get it to run.......Thanks in advance.....
If you were looking at keeping the pull start, here is an inexpensive alternative:

http://www.amainhobbies.com/product_...ipe-Turbo-Plug

If you have a starter box, then you could go the Werks B2 or OS 21VG/OS 21 XR-B. They are all reliable and easily tunable engines that should last you a while if you break them in right.
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Old 09-29-2013, 03:03 PM   #4
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Thanks for the reply...........did you mean one full turn in for the low speed and idle screws?
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Old 09-29-2013, 06:05 PM   #5
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Default adjustment screws

Thanks for the reply...........did you mean one full turn in for the low speed and idle screws?:....confused:
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Old 09-29-2013, 07:19 PM   #6
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Thanks for the reply...........did you mean one full turn in for the low speed and idle screws?:....confused:
yes one turn in or 1mm in from where its flush with the carb body....on both needles !
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Old 09-30-2013, 05:01 PM   #7
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Default Installing new carb.

I am planning purchasing a new engine on this inferno gt 1. I was hoping that someone could give me a decent engine type thats not to expensive and a list of everything that I will need to make the swap......Thanks in advance....
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Old 09-30-2013, 07:54 PM   #8
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Originally Posted by gold69 View Post
Hi.....I am trying to rebuild my grandson kyosho inferno gt. I have it all together except I am have problems getting the stock engine to run. I need help with the factory settings for the carburator of whats a inexpensive engine replacement. Whats the best engine for a easy swap out. I own 9 other nitro vehicles but this car is getting the best of me trying to get it to run.......Thanks in advance.....
If you have pulled down the engine, rebuilt it and it has good compression.
Ensure you have ample fuel pressure and no air leaks anywhere in the system, specially exhaust and tank nipples. If you are certain there is fuel flow, you have compression and you have a spare new plug on hand. Check your starter with spare plug.
  1. Set IDLE gap, looking down carby throat to 1mm.
  2. Setup your linkages and servo subtrims and put a rubber band between carby linkage and top needle.
  3. Unwind top need 1-2 complete turns to open up maximum top fuel pressure*(you wont be revving until you sort out the idle mixture)
  4. Glow Spanner handy, prime the car with three good pulls or blow into pressure tube. Attempt to start it, if there's no sign of ignition, remove the plug, "unflood" engine by turning it over and observe the mix comping out of the engine.
  5. Lean the bottom mixture some more, try starting again. If no combustion, go back and unflood. (It's never nice to screw a NEEDLE all the way into a SEAT, so dont go too far ok!) Keep repeating until you get a puff and then lean bottom 1/4 turn more and it should fire.

A good race tune will stall an idling engine in 4 or so seconds. If you really feel it needs more idle/air then consider that it also changes the mix when you do. From there, lean the top on the bench until it stops choking and put on track for a warm-up before final tune.

I believe any decent cold engine can be started, even shagged one's will start and then flame out through lack of compression when hot. But.. If it's sucking air in via bearings, boots, seals or carby, it's just not worth trying.
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Old 10-03-2013, 05:27 PM   #9
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I finally got the engine started......Thanks......But I am having problems trying to get it to idle down without shutting off......Thanks again
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