Tuning Kit Top Performances cylinder 85cc + crankshaft 44mm AM6

AM6 Engine Top Performances

This Top Performances Tuning Kit 85cc Cast Iron Cylinder + Crankshaft 44mm AM6 includes a cast iron 49.5mm bore cylinder kit and a 44mm stroke crankshaft which will give you a displacement of 85cc.

We recommend combining it with a 21mm carburetor and a racing exhaust. This cylinder + crankshaft kit is very powerful and can, when pushed to the max, give you appr. 17 to 18hp. Acceleration and torque will be considerably improved, especially at mid to high rpm range. As a cast iron kit. it is also very dependable and long-lived.

Technical Specs AM6 Kit:

• Exhaust timing: 191°
• Inlet timing: 132°
• Squish clearance: 0,9 +/- 0,1 mm
• Compression ratio: 8:1
• Recommended ignition advance: 17° (1 mm vor OT)
• Recommended spark plug NGKBR10EG

AM6 Kit Contents:

• Cast iron cylinder with 49.5mm bore
• 1-ring piston with domed head
• Modular cylinder head
• Reducer bush 28/25 mm
• Cylinder gaskets
• Crankshaft with 44mm stroke
• Small end bearing

Note: crankshaft bearings and oil seals are not included. As one of the crankshaft's journals has a 20mm diameter, 2 different sized bearings are needed; article no. 6303 and 6204 (an AM6 and a Derbi bearing).