I need help to upgrade my bike engine for touring purpose. let say i need to install ~250cc (traffic police's bike) engine in cd100 bike chases.
actually i have a plan to cover 700+ Km in limited hours of a day and that can only be achieved by replacing engine with the bigger one.
so i am searching is " will CD100 bike accept 250cc engine in its chaises without altering it?"
if it not possible then let me know the reasons why it is not possible?
or
what is the safe way to get it done...?
IDEA:
ACTUALLY WHENEVER CD100 BIKE ENGINE MAINTENANCE IS REQUIRED (After tour) THEN IT TAKES RS 7000 +. THEREFORE I WAS THINKING THAT WHAT IF I KEEP ONE SPARE ENGINE (~250 HONDA/CHINES) ONLY FOR TOUR PURPOSE (THAT MAY COST ME 10,000 MORE OR LESS). SO WHENEVER I WILL GO FOR LONG RIDE THEN I WILL INSTALL THAT ENGINE AND WHEN CAME BACK TO CITY, REPLACE IT WITH THE ORIGINAL ONE BACK.
Picture is just to show current state of the bike chaises 
