Here is the complete liquid kit from DOPPLER for Peugeot 103, this small 50cc model is really a good high engine for a price to match its performance .
In relation to an origin, here are the parameters which have been improved, first of all the diagrams have been improved, then the combustion chamber is a high compression hemispherical model with polished finish, and finally,
The piston is a thin mono-segment (thickness 1mm) to allow high speeds.
Cylinder head in foundry aluminum which has a bi-hemispherical chamber, and without decompressor.
5-transfer architecture with a booster exhaust. Cylinders in aluminum foundry, Nikasil treated.
This kit is delivered complete as in the photo, with its pack seal, segment, piston, cylinder head ...
We recommend this kit with: 15mm carburetion with 0.30mm valve strip, expansion muffler, variator modification in order to fully exploit the power regime higher than an original, original shape base gasket because not delivered with the kit, spark plug B9HS.
As an option we offer a stage 1 preparation, this preparation is a modification of the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!
