ENGINE INSTRUCTION MANUAL G26 Air G26/G231 Marine G26/G231 Heli G38 G62 GT80 Twin G45
NOTICE All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, LLC. For up-to-date product literature, visit horizonhobby.com and click on the support tab for this product.
Introduction Congratulations on purchasing a Zenoah™ engine. Cared for properly, these high-quality, finely crafted engines will offer many years of reliability. This instruction manual has been developed to ensure optimum performance from the Zenoah engine you have purchased. It’s important that the instructions are read thoroughly prior to mounting and running the engine. Support Equipment The following items are not included with your Zenoah engine but are necessary for operation.
Operation Break-In No specific break-in is required. The engine is gradually broken in as it is used, and the output power increases gradually as the engine breaks in. Starting the Engine—Aircraft Before attempting to start the engine, read through all the steps for starting the engine as outlined below: Zenoah engines are equipped with the ultra compact C.D.I. type flywheel magneto ignition system and should be started according to the following procedure.
Engine Care and Maintenance Recommendations To extend the life of your Zenoah engine, the following is recommended: 1. Use an Evolution quality 2-stroke oil mixed at 32:1 2. Use the recommended spark plugs. 3. Use the proper propeller size and balance the propeller prior to use. 4. Always adjust the engine to a slightly rich setting. 5. For long-term storage, make sure there is no fuel left in the tank or the engine. Remove the spark plug(s) and apply several drops of high-quality oil (e.g.
Assembly (Applies to All Engine Types) 1. Apply engine oil (SAE #30) to the inside of the cylinder and the needle bearings on the larger end of the connecting rod. 11. Put back the Woodruff key. 2. Fit the piston ring to the piston. 12. Replace the rotor (flywheel), fitting it to the Woodruff key. Tighten the hub nut after having applied threadlock (Blue Threadlock Z-42 or equivalent) to the threads. 3.
Specifications and Technical Data Item Unit G260PU G260PUM G260PUH G231PUM G231PUH Type — Air cooled Water cooled Air cooled Water cooled Air cooled ë ë 32 x 28 ë ë Bore x Stroke mm 34 x 28 Displacement cm2 25.4 ë ë 22.5 Effective Compression Ratio — 8.4 ë ë ë ë Type (Walbro) WT-645 WT-644 WT-677 WT-644 WT-677 Venturi (mm) 12.
Troubleshooting Guide for Gas Engines Generally speaking, there are very few things that will keep today’s modern engines from starting. Use good quality “fresh” fuel and make sure good plugs are installed. Should the engine fail to start after these items are verified, refer to the charts on the following page.
Propeller Chart This chart enables you to select the best propeller for the initial setup of your Zenoah engine. Remember, it’s imperative to balance each propeller prior to installation onto your Zenoah engine. Failure to do so may cause unwanted vibration in your aircraft. All recommendations are based on engines using APC brand props.
Exploded View - G26/G231 # 1-1 1- 2 2-1 2-2 3 4 5 6 7 8 9 10 11 12 13-14 15 16 17 18 19 20 21 22 23-1 23-2 24-1 24-2 10 New Part # Old Part # Description ZENT207512110 ZENT207012111 ZENT207612110 ZENT207812110 ZENT207612210 ZEN0785100515 ZEN0700013040 ZENT207612320 ZEN116012330 ZENT207513120 ZEN331012281 ZENT207513150 ZEN114813162 ZENT207514120 ZENT207521100 ZEN262921130 ZENT207521140 ZEN216921210 ZEN115521240 ZEN0406502812 ZEN0603406001 ZEN185021220 ZEN0125230530 ZENT208841110 ZENT207041110 ZENT20884
# New Part # Old Part # Description 25-1 25-2 26 27 28 29 30 31 32 33 34 35 36 37-1 37-2 38 39 40 41 42 43 ZEN160041310 ZEN110141310 ZEN126041320 ZEN8488881100 ZEN110141340 ZENT207542000 ZEN115574110 ZEN026210516 ZEN165043230 ZEN116075210 ZEN186175101 ZEN100043240 ZEN114043250 ZEN262971210 ZEN116071211 ZEN115571110 ZEN026030422 ZENT207572210 ZEN190072120 ZEN262971311 ZENT207073110 ZEN369991975 ZEN026330555 ZEN114283110 ZEN848ES08300 ZENT207782000 ZENT207581000 ZENT207681000 ZENT207781000 ZEN115243260 Z
Exploded View - G38 (Standard Accessory for G380PU) # 1 2 3 4 5 6 11 12 13 14 15 16 17 18 19 20 21 22 23 24 12 New Part # ZEN337812111 ZEN333014111 ZEN333014121 ZEN026020520 ZEN333014132 ZEN337815000 ZEN284115210 ZEN333015220 ZEN337821110 ZEN0125230540 ZEN029220510 ZEN312013510 ZEN313013520 ZEN334041113 ZEN334041211 ZEN330441310 ZEN331041320 ZEN165041510 ZEN331041410 ZEN337842000 Old Part # ZEN3801 ZEN3802 ZEN3803 ZEN3804 ZEN3805 ZEN3806 ZEN3811 ZEN3812 ZEN3813 ZEN3814 ZEN3815 ZEN3816 ZEN3817 ZEN3818 ZE
Exploded View - G45 # 1 2 3 4 New Part # ZEN281712111 ZEN281714110 ZEN281714121 ZEN482013180 5 ZEN848C9014C2 6 7 8 9 10 11 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ZEN267014211 ZEN482013180 ZEN281715111 ZEN335615210 ZEN335615220 ZEN285015230 ZEN281721101 ZEN262921130 ZEN040650351550 ZENT401221240 ZEN152021220 ZENT110821220 ZEN267021250 ZEN281721311 ZEN482013180 ZEN281722210 ZEN267041114 ZEN267041211 ZEN335041310 ZEN335041320 ZEN140041410 ZEN267041510 Old Part # ZEN4501 ZEN4502 ZEN4503 ZEN4504 ZE
Exploded View - G62 * (Accessory for G620PU-1) # 1 2 3 Old Part # ZEN6201 ZEN6202 ZEN6203 4 ZEN848C9014C2 ZEN6204 5 ZEN261614211 ZEN6205 6 7 8 9 10 11,12 13 14 15 16 17 14 New Part # ZEN336612116 ZEN848C9014B3 ZEN261814120 ZEN331012281 ZEN281715111 ZEN335615210 ZEN335615220 ZEN285015230 ZEN262921100 ZEN262921130 ZEN040650351550 ZENT401221240 ZEN152021220 ZENT110821220 ZEN2309 — ZEN6208 ZEN6209 ZEN6210 ZEN6211 ZEN6213 ZEN6214 ZEN6215 ZEN6216 ZEN6217 18 ZEN262921311 ZEN6218 19 ZEN3350
Exploded View - GT80 G80A # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 26 27 28 29 30 31 32 33 New Part # ZEN289812111 ZEN289814111 ZEN285014123 ZEN331072150 ZEN289881000 ZEN289814131 ZEN0125230550 ZEN289814210 ZEN0125230520 ZEN289821001 ZEN262921130 ZENT401221240 ZEN040650351550 ZEN0603406202 ZENT110821220 ZEN267021250 ZEN106581100 ZEN289821310 ZEN0125230520 ZEN285041110 ZEN285041210 ZEN285041310 ZEN130041320 ZEN289842000 ZEN130042410 ZEN100043240 ZEN140043230 ZEN149071110 ZEN2
Zenoah 3-Year Limited Warranty What this Warranty Covers - Horizon Hobby, LLC., (Horizon) warrants to the original purchaser that the product purchased (the “Product”) will be free from defects in materials and workmanship for a period of 3 years from the date of purchase.
Consumer Warranty and Repair Policy Zenoah engines are guaranteed against workmanship and manufacturing defects for a period of 3 years from the original date of purchase. This warranty is limited to the original purchaser of the engine and is not transferable.
© 2019 Horizon Hobby, LLC. Evolution and Hangar 9 are registered trademarks of Horizon Hobby, LLC. The Zenoah logo is a registered trademark of Husqvarna Zenoah Co. Ltd. Corporation and is used with permission. All other trademarks, service marks and logos are property of their respective owners. Revised 01/2019 ZZPZ200 ZEN6135.
