PARTS FOR M21 & M25 PULL START AND ELECTRIC START

1 - HEAD
2 - CYLINDER
3 - PISTON COMPLETE WITH PISTON-PIN AND LOCK
4 - PISTON RINGS - 2 per set
5 - DRIVE SHAFT COMPLETE WITH CONNECTING ROD
6 - BEARINGS FOR THE DRIVE SHAFT – 2 per set
7 - HALF-CRANKCASE
8 - HALF-CRANKCASE
9 - TIE-ROD HEAD/CYLINDER – 4 per set
10 - CRANKCASE STUD - 4 per set
11- HEAD GASKET
12- BARREL GASKET
13- JOINT DECOMPRESSER WITH VALVE
14- DECOMPRESSER
15- SEAL-RING OF DRIVE SHAFT – 2 per set
16- COVER FOR BACK SUPPORT BASE
17- BACK SUPPORT BASE
18- STARTER
19- COUPLER FOR STARTER
20- HAND WHEEL
21- COIL (M21)
22- REED VALVE
23- FLANGE FOR CARBURETTOR BED
24- CARBURETTOR
25- FLANGE FOR AIR FILTER
26- ADJUSTER FOR ACCELERATOR WIRE
27- * PINION (50 or 52.2 mm)
28- * PULLEY (115 or 130 mm)
29- BEARING FOR THE RE DRIVE PULLEY – 2 per set
30- CAM FOR THE RE DRIVE PULLEY

N.B. BOLTS AND NUTS ARE NOT MENTIONED SINCE THEY ARE INCLUDED IN THE PACKAGE OF THE SPARE PARTS.
* FOR THE PARTS MARKED WITH AN ASTERISK PLEASE SPECIFY SIZE.


PARTS FOR M25 BLACK DEVIL WITH ELECTRIC START

31- DRIVE SHAFT COMPLETE WITH THE CONNECTING ROD
32- ELECTRIC STARTER
33- FLANGE FOR THE ELECTRIC STARTER
34- COVER FOR THE BACK SUPPORT BASE
35- IGNITION
36- CHARGE REGULATOR
37- COIL
38- CROWN WHEEL COMPLETE WITH THE PINION
39- COIL COMPLETE WITH THE SPARK PLUG CAP


RE DRIVE RATIOS AVAILABLE

RATIO PINION/RE DRIVE SIZE(mm)
2.2/1- 52.5/115
2.3/1- 50/115
2.5/1- 52.5/130
2.6/1- 50/130

There are a lot of variables that contribute to the final thrust that a paramotor engine will deliver. The general rule however is that a larger propeller spinning slower will deliver more thrust and be a lot quieter than a smaller propeller spinning faster which will give a lot more propeller noise - so the re drive ratio of 2.5/1 or 2.6/1 with a 120cm to 130cm propeller gives greater thrust and less noise. However it also needs a bigger cage on the paramotor frame.
If you give us an email we can assist with the correct selection of props and re drive ratios dependent on factors such as your height and weight.

To access a picture of the engine parts please open the download below

Click here to download this file