For quality reasons! We do not sell this engine with the original, budget-type ignition; we require the installation of an MVT PREMIUM or MILLENIUM ignition!
For mounting on your PEUGEOT 103 SPX, RCX, MVX, CLIP, SPECTRUM, FUN... we recommend you also purchase this motor spring!
The ECO EVO version of the 70cc sport engine minimizes costs by incorporating CARENZI crankcases, an AIRSAL cylinder, and a DOPPLER crankshaft. This EVO version also features a ported cylinder, an MVT cylinder head, a flexible side-exit intake manifold, and a 21mm POLINI CP carburetor...
This engine for PEUGEOT 103 is complete and very well equipped; it includes :
-70cc air-cooled aluminum kit, 6 transfer ports, dual-ring AIRSAL T6 FOX version, tuned 190° / 129°
MVT 1mm base spacer
-MVT high-compression MVT head
-CARENZI crankcases with large valves and integrated support
-CBE side outlet pipe
-Genuine MALOSSI VL6 reed valves
POLINI CP 21 carburetor with flexible mounting
-Reinforced C3 bearings with polyamide cage
-Reinforced crankshaft with solid masses DOPPLER ER1
-Crankcase screws, cylinder head screws, studs... High quality
MVT PREMIUM internal rotor ignition, small cone electronic
-Motor supplied without a motor spring; we highly recommend a DOPPLER motor spring! Use a yellow spring, as the white one won't be able to handle the power!
Everything is assembled to the highest standards (squish clearance, cylinder volumes, improved lubrication of the connecting rod head and foot bearings, etc.), and thoroughly tested. To further enhance this complete engine, you can install the new MVT SP3 exhaust or another model.
In short, it's still evolving but already very efficient! If you want to install a decompression valve, plan to buy one separately as the unit comes with a plug!
Give it a proper 400km break-in period, and gradually increase the power while adjusting your variator to try and make the most of the 9,000 to 10,500 rpm range across the entire rev range. Also, check your carburetor settings. MOTUL 800 ROAD 100% synthetic oil is highly recommended, starting at 3% for break-in and gradually reducing it (from 200km onwards) to 2.5% or even 2% (too much oil lowers the octane rating and therefore engine performance, too little risks engine seizure and premature wear)!
As an option, we offer engine tuning that allows you to reach approximately 10,000 rpm, compared to 8,500 rpm for the stock version. This tuning includes modifications to the port timing and exhaust port, slight adjustments to increase the intake port timing (lateral), improved intake porting on the piston and rear cylinder skirt, and general piston improvements. The intake manifold/reed valve assembly is also upgraded. Proper engine spring/variator tuning is essential to fully utilize the 10,500 rpm mark!
*Delivered without interference suppression, the MALOSSI kit with cable is very good!
*Supplied without spark plug; a B10HS is recommended for break-in, adjustments, and running. We do not recommend iridium spark plugs for this engine with this ignition system.
*Supplied without a variator, the ER3 Doppler is a very good variator.
*Delivered without a belt; you will need to purchase a good quality belt such as the DOPPLER
*Delivered without motor spring; ideally, use a DOPPLER which we will assemble on the motor.
*Delivered without an exhaust, you can pair the engine with an MVT SP2, especially if you have opted for the STAGE 1 preparation.
*If your original 103 is 6V, you will need 12V bulbs and a voltage regulator to work with your MVT PREMIUM ignition.
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