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United States

Electronics and engines requiring inspection or repair should be shipped to the following 
address:

Horizon Service Center

4105 Fieldstone Road

Champaign, Illinois 61822

USA

All other Products requiring warranty inspection or repair should be shipped to the 
following address:

Horizon Product Support

4105 Fieldstone Road

Champaign, Illinois 61822

USA

Please call 877-504-0233 or e-mail us at [email protected] with any 
questions or concerns regarding this product or warranty.

W

ARRANTY 

& R

EPAIR 

P

OLICY

Consumer Warranty and Repair Policy

Saito 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. Warranty repairs will not cover:

Normal engine wear

• 

Damage due to insufficient maintenance

• 

Damage related to over-revving of engine due to small prop size or unreasonable use

• 

Rusted bearings

• 

Crash damage

• 

Damage due to use of improper oil and/or oil ratio

• 

Damage due to lean runs, such as rusted bearings, seized connecting rod or piston, etc.

• 

Damage caused by foreign objects (dirt or other debris)

• 

 Damage caused by unreasonable mountings or running conditions (dust, insufficient 

• 

cooling, improper mounting, improper propellor size, or lack of balancing, etc.)

Damage due to improper disassembly

• 

Modifications of any kind

• 

Repair or replacement and any warranty coverage is Horizon’s sole decision

• 

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Summary of Contents for FA-170R3

Page 1: ...INSTRUCTION MANUAL Multi Cylinder Four Stroke Engines FA 90R3 FA 170R3 FA 325R5 D FA 200R3 FA 450R3 D _ _MCFSE cs3 indd 1 2010 11 04 10 01 46...

Page 2: ...VERY IMPORTANT Failure to read and follow these instructions before you proceed may result in engine damage and the voiding of your warranty _ _MCFSE cs3 indd 2 2010 11 04 10 01 47...

Page 3: ...be sure that all spectators especially children are at least 20 feet away 2 Use the correct size and pitch of propeller for your engine refer to the propeller chart in this man ual 3 It is extremely...

Page 4: ...ly harm Also all loose objects screwdrivers pencils nickel cad mium starters stc Should be removed from your pockets so they do not fall into the propeller 4 Glow plug clips and cords are kept away fr...

Page 5: ...ons This will assist you in easily and rapid ly identifying the respective parts of your Saito engine SUPPORT EQUIPMENT The following items which are not included with your Saito engine are necessary...

Page 6: ...he glow plug connector to the terminal of a 125V 10A micro switch not supplied b Solder a lead from the micro switch to the positive terminal on the Ni Cad battery c Attach the single lead from the gr...

Page 7: ...uded with the glow dri ver you ve selected NOTE The use of an on board glow system is highly recom mended This will guarantee a smooth reliable idle If an on board glow system will NOT be utilized rep...

Page 8: ...f applicable and down the pushrod tubes 40 will ensure proper lubrication for the first run Regardless of the mounting met hod chosen for break in the following procedures are applicable 1 Use a break...

Page 9: ...rush washers and that the lines are properly connected See Figure 3 below 5 Fill the fuel tank 6 Check to make sure the glow plugs are not connected to the heat source glow plug clip lock ing socket N...

Page 10: ...d After priming be sure to install the plug START THE ENGINE 11 Close the throttle to 1 4 to 1 3 open position 12 Rotate the propeller clockwise until it s against the compression stroke 13 Rotate the...

Page 11: ...e becomes hydro locked simply remove the glow plugs and turn the engine over a few times with the chicken stick or electric starter The excess fuel will be forced to exit the engine via the cylinder h...

Page 12: ...ed at this time Refer to the Engine Maintenance Section on page 12 for information on the valve adjustment The use of a tachome ter is encouraged for setting the high speed needle valve 85 prior to fl...

Page 13: ...he throttle trim of your transmitter NORMAL ENGINE OPERATION If break in was accomplished on a test bench your engine is ready to be mounted to the aircraft and flown The initial flight should be perf...

Page 14: ...issible without voiding the warranty however disassembly of the cylinders crankshaft and cam gear assembly should be done only by the Saito Service Center because of the special jigs andtools reguired...

Page 15: ...or to use 4 Use a tachometer for precise engine adjustments 5 Use an after run oil EVOX 1001 when you re finished flying for the day 6 For long term storage make sure there is no fuel left in the tank...

Page 16: ...iming proce dure Disconnect battery remove glow plugs and rotate propeller several times to clear cylinder s Disconnect battery and rotate propeller several times to clear cylin der s Close high speed...

Page 17: ...on version of your engine Should you ever need to order a part or have a question pertaining to your engine specity this letter along with the engine type This will allow for easier identification of...

Page 18: ...5 FA325R5D 100 30 49 170 220 79 77 93 225 5 2 FA450R3D 110 30 49 200 237 79 100 100 250 5 2 SPECIFICATIONS Items Displacement Bore Stroke Weight K Cyl HP EX cu in mm mm oz ISO Dia FA90R3 0 9 15 9cc 2...

Page 19: ...170R378 325R578B 781 Flex Muffler 1 Cylinder 250mm 90R3781 170R3781 170R3781 see 78B1 see 1111 782 Flex Muffler 2 Cylinder 100mm 90R3782 170R3782 170R3782 thru 78B6A thru 1113 783 Flex Muffler 3 Cyli...

Page 20: ...PARTS LIST FA 90R3 18 _ _MCFSE cs3 indd 18 2010 11 04 10 01 50...

Page 21: ...PARTS LIST FA 170R3 FA 200R3 19 _ _MCFSE cs3 indd 19 2010 11 04 10 01 51...

Page 22: ...FA 325R5 D PARTS LIST 20 _ _MCFSE cs3 indd 20 2010 11 04 10 01 52...

Page 23: ...PARTS LIST FA 450R3 D 21 _ _MCFSE cs3 indd 21 2010 11 04 10 01 53...

Page 24: ...Horizon reserves the right to inspect any and all equipment involved in a warranty claim Repair or replacement decisions are at the sole discretion of Horizon This warranty does not cover cosmetic da...

Page 25: ...ses and a brief summary of the problem Your original sales receipt must also be included for warranty consideration Be sure your name address and RMA number are clearly written on the outside of the s...

Page 26: ...ars from the original date of purchase This warranty is limited to the original purchaser of the engine and is not transferable Warranty repairs will not cover Normal engine wear Damage due to insuffi...

Page 27: ..._________________________________________________ Street Address ________________________________________________________________________ City State Zip _______________________________________________...

Page 28: ...Exclusively Distributed by Horizon Hobby Inc Champaign IL 61822 Copyright Sep 2010 Stock SAIMAN3 C _ _MCFSE cs3 indd 26 2010 11 04 10 01 53...

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