QUOTE(ycgoh123 @ Nov 25 2017, 11:35 PM)
haha. i heard alot of times i need to change the head. but then the head need another 1K+ right.
ya now the pickup is good. but the top speed really not so good. this few day even more gg. the speed will drop when 4th gear, feel like the carb oil is too much. very mafan o the uma carb like cant pull oil at traffic light or cant suddenly pull more oil will mati engin. lol
and for the uma paip actually i really can feel the uma paip is not enough for this but then i dun like the open paip also. polis will kacau
btw, may i know where are you from? maybe can suggest some shop that can do nice setting for carb and cdi? i around seri kembangan area.
else i might thinking to change back all to ori already. tired already haha. feels like dunwan to spend too much money on bike again.
Bigger carb and race cam is meant to increase power 6000 - 12000rpm. Anything below 6000rpm will have drop in power, so u cannot suddenly go full throttle when launching bike at start, due to vacuum around intake area (race cam character). Stock cam and stock carb can do it as they are designed to have good power from 3000rpm to 7000rpm. So, when you ride the bike, first must understand the mechanics of race cam and bigger carbs. Of course, I am suspecting the carb setting isn't accurate too.
Besides, it is a weird combo: your race cam and big carb is meant for 6000 - 12000rpm power, but the head and pipe doesn't allow it. That's why the carb and CDI setting is tough, not easy to get accurate one.
Speed drop when 4th gear is because the exhaust (head and pipe) backpressure is too much, limiting the airflow. Pipe and head need to lepas more gas at higher rpm, so the engine can breathe in new fresh air.
stock pipe is even worse than UMA pipe. Open pipe need to custom make, I DIY ownself and ask fren to make it. Not expensive, just around RM250+
For my case polis no kacau bcoz when I cruise, the bike is very silent. Only when going all out, then the bike will scream (which sounds very nice).
Im from Penang. I only know Tuneboss fella in PJ, but they are not setting CDI/Carb.
This post has been edited by charge-n-go: Nov 27 2017, 09:19 AM