Rotax original guillotine stud (6 x 30.5 x 12 mm)

The exhaust valve system Rotax requires absolute precision. This Specific stud (marker # 3 on burst engine) is the essential link part for sliding your guillotine in the cylinder.

The strengths of the original room:

• Certified dimensions: 6 mm in diameter for a total length of 30.5 mm (12 mm smooth part). This geometry is studied for perfect alignment without constraint.

• Optimal sliding: The surface finish allows the guillotine to mount and descend without excessive friction, even under the effect of heat and calamine.

• Reliability Rotax : Designed to withstand intense motor vibrations and high exhaust temperatures.

Engine compatibility:

• Rotax 125 Max EVO & NON-EVO

• Rotax 125 Junior

• Rotax 125 Mini / Micro

• Rotax 125 DD2

? Michel's Tip (Magickart):

"Be careful not to force the assembly! A 30.5 mm stud must be perfectly perpendicular for the valve to not be bridle.

My Pro Council: Each disassembly of the valve for cleaning, check if the stud is not marked or "dug". If you feel a finger asperity, change it. A valve that hangs, it's an immediate torque loss output from turn!

The little more: Remember to check the status of your [Écrou de valve] and [Soufflet] To leave on a 100% waterproof basis. "

?️ Why this update is vital?

Specifying well 6x30,5x12, You avoid the control errors of customers who confuse with other engine studs. The reminder of the "number 3" of the splutter is the best way for them to confirm their basket with confidence.

This sheet is validated with the new dimensions? You have another one to complete the series Rotax ?