Rotax 125 owners manual

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Mailchimp newsletter registration. Youtube Videos. You can specify your settings here for targeted cookies. Social Media Widgets. Next Page. Equipped with breakerless dual ignition system and bing carbureto 40 pages. This chapter of the Repair Manual contains general and safety informa- Table of contents tion concerning the operation of the kart engines. For additional information on engines, maintenance or parts, you can Documentation also contact your nearest authorized ROTAX -Engine distributor.

Page 16 Indicates supplementary information which may be needed to fully complete or understand an instruc- tion. A revision bar outside of the page margin indicates a change to text or graphic.

Page Safety Notice Non-compliance can result in serious injuries or death! Torque wrench tightening specifications must be strictly adhered to. Page 20 This number e. Page 21 Non-compliance can result in serious injuries or death!

Any other use renders the BRP-Powertrain factory limited warranty null and void. Use for intended purpose also includes observation of the operational, Observe the condition from the operator of Kart! Coolant capacity 0. Some Table of contents overlapping maintenance instructions are treated as generally valid infor- mation at the beginning of this section.

Page Maintenance Maintenance of engines and systems requires special knowledge and Special tools special tools. Use only the special tools recommended by BRP-Powertrain when disassembling and assembling the engine.

Before using new and unknown cleaning agents check the compatibility of materials. Page 29 If not respected, damage may be the conse- quence.

Page Consumable Materials g 0. Page 34 Replace the baffle in the exhaust system Every 10 hours of operation silencer. Page 35 Every 10 hours of operation gear assy. The description is divided into sections.

Subject Page System description Page Page Preparation Procedure Disconnect tension springs 1 with spring hooks part no. Loosen the nuts 2 on the shock mountings and remove the exhaust system.

Page Dismantling The Ignition Unit Free the ignition transformer 2 at the locknut 5 , washer 6 and 2 round buf- fers 8. Loosen and remove the starter 4 at the two screws 9. Page 44 Disconnect the cable bowden 2 from the nipple screw 3. Page Preparation Before installing the engine on the chassis the instal- lation instructions for the engine the installation in- structions of the chassis manufacturer must be read and understood.

See also Chap. Page Installation Of The Exhaust System Before starting the engine, the operating instructions for the engine and the operating instructions of the chassis manufacturer must be read and understood. Page Cylinder Removal Remove the cylinder with the socket set by unscrewing the four M8 collar nuts 1 from the crankcase. Remove the cylinder 2 from the crankcase. Remove the cylinder base gasket 3. Page Dismantling Cylinder Remove the combustion chamber insert 12 by unscrewing the 5 hex screws 13 crosswise the lock washer Lift away the combustion chamber insert with lower 15 and upper O-rings Page 58 O-ring x2.

Page Removal Of Exhaust Socket Remove the carburetor flange 5 with hose clamp 6 from the cylinder with the 5 cyl. Remove the reed valve 8 and gasket 9 from the cylinder.

Page 60 Reed valve Gasket Figure 3 K 2. The exhaust pressure controls the valve bel- lows via the impulse bore. The exhaust valve piston pulls up the exhaust valve and thus provides a longer outlet control time.

Remove the gasket Remove the exhaust valve 14 with O-ring 15 and stud Removal of exhaust valve MAX only Graphic 16 Page Removal Of Piston Pull out the circlip 1 with the circlip puller 3.

Use safety glasses! Press the piston rod out of the piston and con rod with the point of the special tool 3. Page 67 Check the needle cage 2 for cracks and abrasion. The circlips 3 are replaced at every repair.