Engine Attachment On Chassis; Attachment Via Engine Pedestal; Fitting Of The Drive Chain; Installation Of The Intake Silencer With Integrated Airfilter - Rotax 125 MAX evo Betriebsanleitung

ROTAX 125 MAX evo, Junior MAX evo, Mini MAX evo, Micro MAX evo

11. Engine attachment on chassis

11.1.

Attachment via engine pedestal

Using an engine pedestal for the ROTAX engine 125 MAX evo / Junior MAX evo / Mini MAX evo /
Micro MAX evo, the engine is inclined at 0° to 15° in the driving direction.
 Drill 4 holes (8.5 mm dia / 0.315 in. = drill size) on the coordinates 80 mm x 102 mm
/ 3.15 in. x 4.016 in. in top plate of the pedestal suitable for the chassis.
 Warning: When drilling the holes in the pedestal pay attention to advice of the chassis
manufacturer.
 Connect pedestal with engine crankcase by 4 screws M8 (min. strength grade 8.8).
Tighten screws to 24 Nm / 212 in lb.
 Note: Engaged thread length in crankcase to be between 16 / 5/8 "- 24 mm / 1 in.
 Warning: Pay attention to chain alignment as advised by chassis manufacturer.
 Note: Do not fasten engine on chassis until chain is in position and properly aligned and
tensioned.

12. Fitting of the drive chain

The required length of the drive chain depends on chassis and transmission ratio and the chain is
therefore not included in the supply volume of the engine.
 Note:
BRP-Rotax recommends O-ring drive chains by ROTAX Premium.
 Use a chain with the length corresponding to the selected transmission ratio of
dimension 7.75 x 4.6 x 4.5.
 Place chain on sprocket at the clutch and on the sprocket on rear axle.
 Verify chain alignment between front and back chain sprocket with a straight edge.
Correct as required by shifting sprocket adapter along rear axle.
 Warning: Pay attention to instructions of the chassis manufacturer regarding the drive chain
alignment.

Establish required chain tension (Sag = +/- 5 mm / +/- 0.20 in) by shifting of the
engine.

Fasten engine on the chassis
 Warning: Take note of advice of the chassis manufacturer regarding engine suspension on
chassis.
 Warning: During kart operation beware of any contact of body or clothing with moving parts of
the kart (drive chain, rear axle and wheels). Risk of injury.

13. Installation of the intake silencer with integrated airfilter

See Fig. 42.
Page 24/53 Edition 07/2016