1E40QMB KSR Toxic 50

[alexi]

Hello guys , 
So i read a lot on this fourm , big help for me and i have this question, because i dont know anybody who can help me with my scoot.
So i have this question / problem. I put on my scoot a 70cc Top Performance kit ( 1E40QMB engine ), Tehnigas RR deresticted , 5g Rollers and everything its stock. Should i make more modification for my scooter ? 
When i start its a little slow ( full throttle ) but after 2 3 sec its starting really fast, like huge power and after the 50km 55km/h its feel like more power, and its stop around 80km/h but the engine feel like it wants to go a little bit higher. My mecanic has experience with changing parts but when it comes to tune for the best run, has low experience. 

Anyone has some advice ? i dont want to blow the engine or something like that.
I will buy a tachometer to se the RPM, but until then i request your help.

Thank you !

[aeroxbud]

I have no experience with the RR pipe. Are you sure it's not the next R exhaust. As I couldn't find it.
You will need stiffer clutch springs to help keep the revs up when launching. Especially if you have an expansion chamber type exhaust.
You can buy a pack of three different strengths. This gives you a choice of revs to match the power band of the pipe.
Did you increase the jetting when the kit and exhaust was installed? Otherwise you will be running dangerously lean.

[alexi]

It is the next R actually, my bad. I didnt do any modification of anything. I will look to buy the springs. i dont know what type of carb i have , so i dont know what is the main jet. Before i have a 70cc TP, stock exhaust , same carb, but it didnt run like now. Now has and it feel like it have more power, i think it consume more fuel. My mechanic says the old kit was 70cc, i thought it was a 50cc, because when i need to change it , i want to put a 50cc, but it informed me it was a 70cc. I just want to ride safe and do some unknow damage to my scoot. This is the reason i requested your knowledge.

sorry for bad english....

[aeroxbud]

Your English is fine.👍
The next R is not the highest performance exhaust. But works well for a low raving sport build. But usually you would expect to increase the main jet but about 5-10% for an exhaust. Then the same again for a cylinder. Perhaps make the needle richer by moving the clip down.
There are so many variables it's hard to give an exact spec for your bike.
I guess it's air cooled? I would get a CHT gauge to keep an eye on the temperature. Just in case it's lean.