A proper squish clearance can give your motor 10% more power. Most aftermarket cylinder kits are not made to this close tolerance of 0.6-0.8mm proper piston clearance. We check the squish band clearance and usually have to close the gap from .18 -.13mm down to .8mm gap for proper squish band function to work properly.
(3)- Mating the 54mm cylinder to Stroker Crank
This is the tricky part of compressing both rings while trying to manouver
a 4 kilo iron cylinder above them. It does not help with my slightly stiff,
50 year old hands. It should be a snap for you young guys. RH
EXPANSION CHAMBER VISUALLY EXPLAINED
(EXACT English TRANSLATIONS have been uploaded to Closed Captions for
VIEWERS interested in accurate translation in THEIR LANGUAGE -thanks). I am
continually trying to get the perfect version of how an expansion chamber
piper works. I may make a few of these little videos until I get the right
one. This one looks rough and I may not keep it up on the youtube. I hate
to practice or prepare for a video too much, because it ruins the
spontaineity. I need to find just the right words to explain this expansion
ScooterNations - Fitting A 70cc Cylinder Kit/Big Bore Kit
scooternations.com is the fastest growing and the friendliest scooter forum
on the net, we welcome everyone.
Fitting A 70cc Cylinder Kit/Big Bore Kit
Also removing a 50cc kit, tips on the crank and torquing up also!
Easy to follow!
For more info!
Check out the forum!
motor bike 6 cylinders : incredible sound by Guy Coulon
invité par Guy Coulon dans son atelier de GP Tech 3.
Une rencontre inoubliable d'un ingénieur et d'un génie, d'une simplicité
Il nous a fait l'honneur de démarrer son chef d'oeuvre : un proto 6
cylindres de 300 cc, fait entièrement à la main. Magnifique ! avec un son
Europ'Touring BMW Motorrad
Maxxess Arras Accessoires motos et occasions
CR500-AF compression testing
Compression test on the big CR and a weather report. Groutaone official
race gear found here http://www.groutaone.com/
2 stroke transfer ports information, along with porting and polishing tips
Information about the transfer ports on 2 stroke engines. An explanation of
the how the transfer ports on a 2 stroke cylinder work, along with tips for
porting 2 stroke transfer ports. 2 stroke transfer port timing and
trajectory are critical to power production results.
brought to you by CC Specialty Tools, world leader in porting and polishing
How to install pistonrings on a twostroke
Here I mount piston rings on a piston to a Speedfight 100cc and 50cc.
Surf to http://www.twostroke.se if you need new piston
Some hints, tricks and other things you should know at piston replacement:
Things to consider when installing an aftermarket Piston, is that you very
carefully to make sure it is identical with the piston as it is ordered in
the dimensions of the piston pin, both upwards and downwards, this so that
it can not turn the crank, push or hit the top when it rotates in the
Compare with your old piston before installation.
One must also carefully check every holes on the piston rings ports so that
they do not go over any channel in the cylinder, then the chances are that
the ruling in this case, sticking and breakage, leading to the cutting
cylinder. The arrow on the piston is at assembly towards the Exhaust port.
Choosing the piston:
B-piston recommend it for all used cylinders.
A piston for new cylinders or cylinders with new nicasil.
A B piston is slightly larger than an A piston in order to compensate for
wear. C piston is greater than B-piston etc..
Here you can see when I change the cylinder
Pro Circuit Engine Porting
An inside look into the Head Modification service offered by Pro Circuit.
There is a fine line to building an engine. If limits are pushed too far
there are reliability issues. Pro Circuit's goal is to give you the very
best in high-performance service without any loss of reliability. Pro
Circuit engine modifications will give you increased from bottom to top.
For more info and pricing (in New Zealand) on 2 or 4 stroke engine work by
Pro Circuit please contact Crown Kiwi Enterprises Ltd. Ph: 06-751 4550
Pro Circuit products are proudly imported & distributed in New Zealand by
Crown Kiwi Enterprises Ltd.
Video courtesy of Pro Circuit Inc.