Okey i have ton of experience with 2-strokers ive owned a derbi senda which is a motorbike in spain and i rebuilt that motor and did pretty much everything from port polishing polishing/matching, polishing inside the crank chamber, reeds, pipes, carbs jetting. there area few things i haven't done.
one of those things is increasing compression, now a method i know of is to take the head of the cylinder and with sand paper on a flat surface start polishing it with oil to decrease volume only slightly. and therefore increase compression.
Another thing i want to know what size carb normally comes with these whizzer type engines. and what type/size carb people used and got away with.
Any one know of racing/performance crank bearings out there, anyone use them, how are the results.
Again i was looking for reed mod, i know there are different thicknesses of these and i was looking for a carbon fiber one.
Last but not least mod, if i take the piston connector rod and sanding it down to decrease weight. was wandering if anyone has done this and how much sanding would i get away with without compromising strength.
Off the topic
how long do people break in their engines for. and is there reason to re-tighten the cylinder bolts after couple hundred miles.
Thanks guys.
one of those things is increasing compression, now a method i know of is to take the head of the cylinder and with sand paper on a flat surface start polishing it with oil to decrease volume only slightly. and therefore increase compression.
Another thing i want to know what size carb normally comes with these whizzer type engines. and what type/size carb people used and got away with.
Any one know of racing/performance crank bearings out there, anyone use them, how are the results.
Again i was looking for reed mod, i know there are different thicknesses of these and i was looking for a carbon fiber one.
Last but not least mod, if i take the piston connector rod and sanding it down to decrease weight. was wandering if anyone has done this and how much sanding would i get away with without compromising strength.
Off the topic
how long do people break in their engines for. and is there reason to re-tighten the cylinder bolts after couple hundred miles.
Thanks guys.
