Summary of Samurai 321B
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Www.Protekrc.Com copyright © 2014 321b nitro engine instruction manual.
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I n s t r u c t i o n m a n u a l it is important that before attempting to operate your engine that you read, understand and strictly follow the outlined guidelines in the “safety instructions, warnings and notes” section on pages 1-3 of this manual. • study the information provided in this manual ...
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Model engine fuel is poisonous. Do not allow it to come into contact with the eyes or mouth. Always store fuel in a clearly marked container and out of the reach of children. Model engine fuel is highly flammable. Keep it away from open flames, excessive heat, sources of sparks, or anything else tha...
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W a r n i n g 33 02 • this engine is intended for use in model cars. Do not attempt to use it for any other purpose. • mount the engine in your model securely. Always follow the manufacturer recommendations, using the appropriate screws and locknuts. • install an effective throttle return device. Th...
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N o t e s 03 32 • before starting the engine, verify that all fasteners, especially those at joints and moving parts (such as the throttle arm) are tight and secure. Loose fasteners are often the source of catastrophic problems and could lead to injury or property damage. • to stop the engine during...
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31 04 e n g i n e c o n s t r u c t i o n this engine uses a chrome plated brass sleeve with a tapered cylinder wall. When the engine is cold, the piston will feel tight when rotated through the top of its stroke, or top dead center (tdc). This is normal. The cylinder will expand and will achieve co...
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05 30 n o t e s w h e n a p p ly i n g t h e s ta rt e r b o x do not over prime the engine. This could cause a hydraulic lock and damage the engine when the starter is applied. • if over-primed, remove the glow plug, close the high speed needle valve, cover the head with a rag and apply the starter...
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29 06 a b o u t t h e e n g i n e the protek r/c samurai 321b is a 3.5cc high performance short-stroke nitro engine produced and assembled in japan by one of the most highly respected model engine manufacturers in the industry. Designed for off-road radio-controlled competition racing, the engine is...
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07 28 s ta n d a r d i n c l u d e d a c c e s s o r i e s • protek p3 - ultra hot turbo glow plug (ptk-2542) (1) • 0.1mm cylinder head shim (ptk-2509) (1) • high temp exhaust gasket (ptk-2528) (1) • 7mm “elliptical” carburetor restrictor (ptk-2524) (1) 8mm “elliptical” carburetor restrictor (ptk-25...
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R e q u i r e d i t e m s & b a s i c e n g i n e pa rt s the following items are required to operate the engine. Fuel the user should only use high quality fuel for two stroke glow type engines that contains 10-30% nitromethane. Fuel with 20% nitro content is recommended for break in. Then, change ...
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09 26 s ta r t e r b o x b at t e r i e s use the battery type that is recommended by the starter box manufacturer. Ensure that the battery is fully charged before use. Recommended: ecp-lph-5000-2s30 (x2) - ecopower 2s li-poly battery pack f u e l b o t t l e use this to fill the fuel tank. Recommen...
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25 10 b a s i c e n g i n e pa rt s cooling head exhaust back plate mounting lugs crankcase front bearing crankshaft carburetor i n s ta l l i n g d u s t c a p s when storing the engine install the cap on the exhaust port, carburetor, etc. To prevent dust from entering the engine. This can cause pe...
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11 24 c a r b u r e t o r c o n t r o l s the following procedure is recommended for this engine when the protek r/c p3, ptk-2060 or ptk-2090 tuned pipe and fuel containing up to 30% nitromethane are used. H i g h s p e e d n e e d l e ( n e e d l e va lv e ) use to adjust the fuel mixture when the ...
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23 12 g l o w p l u g since the chosen glow plug and fuel type will effect performance and reliability, it will be worthwhile to test with different plugs to find the best plug for your application. We recommend the protek r/c p3 plug. Carefully install the plug finger tight before final tightening ...
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13 22 i n s ta l l at i o n o f t h e s ta n d a r d a c c e s s o r i e s i n s ta l l t h e g l o w p l u g insert the included plug into the heatsink head carefully making sure that it is not cross threaded before tightening firmly. Install the included exhaust gasket. One 0.1mm cylinder head shi...
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21 14 i n s ta l l at i o n o f t h e c a r b u r e t o r the carburetor is only lightly installed into the intake boss when it leaves the factory. Follow the steps below to complete the installation. 1 loosen the retainer screw, rotate the carburetor into the position that best suits your applicati...
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15 20 e n g i n e i n s ta l l at i o n make sure that the vehicles engine mount surfaces are level, and on the same plane. Poor installation may cause distortion of the crankcase, bearings, etc, resulting in erratic performance and permanent damage. The recommended screws for securing the engine ar...
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19 16 s ta rt i n g & b r e a k i n g - i n t h e e n g i n e w h i l e o p e r at i n g • do not drive the model on a public street! This can cause serious accidents, personal injuries and/or property damage. • do not operate near pedestrians or small children. • do not operate in small or confined...
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17 18 the following procedure is recommended for this engine when the protek r/c p3, ptk-2060 or ptk-2090 tuned pipe and fuel containing up to 30% nitromethane are used. • identify and note the flywheel position when the piston is at bottom dead center (bdc). • fill the tank completely with fuel. • ...