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NGH GT25 25cc Gas Engine With Rcexl CDI Ignition (2.7HP)

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NGH GT25 25cc Gas Engine With Rcexl CDI Ignition (2.7HP)


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This is the GT25 25cc (1.52cu) Gas engine from NGH. Well suited to 1.20-1.50 sized glow models, this engine offers lightweight and fantastic power output for it's size; 2.7hp @ 11,000rpm.

This is a good quality gas engine and comes complete with the reliability of an RCEXL CDI ignition system. Full installation and run-in instructions are also included. The GT25 is not only a great little performer, it looks great too! Featuring a sand cast crankcase, contrasting blue anodized prop driver and a Walbro carburetor for easy tuning.

This package is economical to run in comparison to similar sized glow engines. Get some gas engine economy for your model today!

NOTE: Do not run with less than the manufacturers recommended fuel : oil ratio!

• Electronic ignition system included
• Walbro carburetor
• Beam type mounting for easy glow engine replacement
• Compact muffler

Engine type: Single cylinder, 2-stroke, air-cooled
Bore/Stroke: 33.2 x 29
Piston displacement: 25cc
Max. power: 2.7HP/11,000rpm
Min. idle Rpm: 1600rpm
Practical RPM: 1600-11000rpm
Ignition: Rcexl CDI with auto advance
Spark plug: 1/4 x 32 Rcexl
Carburetor: Walbro WT series
Lubrication oil: 2 cycle Engine Oil API TC / JASO FD or better specs. (Mobil + M2T)
General use fuel: 25:1~30:1
Propeller range: 15x10 ~ 16x10

Length backplate to propeller boss: 120.1mm
Mounting: 58mm x 25mm
Height from crank centerline to spark plug tip: 110.6mm
Weight: 1065g (including ignition and muffler)

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Boz1911 | Verified Buyer

  • Quality
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Good value

Mar 31, 2022

Strong good running engine. Just haven't found a home for it

assosix | Verified Buyer

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tres bon moteur

Jan 27, 2022

tres bon moteur 25cc essence demarre tres bien tres bon ralenti pas encore rodé entierement mais tres bon rendement 8650 tours bon reglage d usine rien a toucher rapport qualite prix super

Pardak | Verified Buyer

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Sehr gute Qualität

Jan 16, 2022

Sehr hohes Preis-Leistungsverhältnis

Flyoz | Verified Buyer

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NGH25 Nioce Power plant

Nov 20, 2021

Beautiful little engine Only issue if you could call it that was the Muffler was a tad bulky for my Qtr Scale Cub The wrap around aftermarket muffler proved perfect and this engine easily fitted in place of the Orig 120 4s Glow engine like a glove!! Direct fit !! The tiny sparkplug is the size of a 4s Glow plug amazing.

Lars | Verified Buyer

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Sep 26, 2021

I have no problems the only thing is the mufler is noysy

G | Verified Buyer

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  • Value


Aug 18, 2021

Working good. Check out my videos on You Tube RC Roland (Precedent T 240)

Macca | Verified Buyer

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Time will tell

Jun 19, 2021

Two test bench runs and one maiden flight, all good so far, runs rough at 1/2 throttle (no mid range needle) but idle and full ok, can't source walbro carb kit as yet needed for annual rebuild as advised.

Gjp | Verified Buyer

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Nice easy motor to mount

May 06, 2021

Great running motor, easy to mount the exhaust being in two is no good but going to use a canister exhaust anyhow.
Great idle and good transition on the ground haven't had it in the air yet

CBC | Verified Buyer

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Good engine for the money

Mar 24, 2021

I picked this engine up for a project P-51 I was given. After receiving the engine I ran it on the test stand, and had no problem whatsoever flip starting it. It ran great, was plenty responsive. The muffler it comes with makes it kind of sound like a chainsaw. I noticed that through the exhaust opening, the piston below the rings looks a bit "scratched", not exactly like fresh hash markings but more like random scratches. So far that has not affected performance. The engine is now in the plane, however mounted inverted and using the wrap-around muffler. I spent hours trying to flip start it in this position, but there's just not enough airflow through the carb to get the air/fuel mix into the combustion chamber. Using an electric starter has solved that issue. I'm still going through the break-in process on the ground and can tell that it will have plenty of power for this aircraft. Idle is finally getting down nice & low and smoothing out as I'm able to lean the idle screw down; previously it was vibrating quite a bit with the initial rich mixture. The wrap-around muffler does sound different, and I suppose less like a chainsaw and perhaps more like a weed-eater, but we'll see how it sounds once in the air. Overall I'm happy and can't wait to get that Mustang in the air.

David | Verified Buyer

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Dec 07, 2020

Once primed fired right up, zero change to carb. Maiden was fantastic, loads of power.....

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Customer files
NGH 25 owner's manual Download [1]
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