if my 450cc i just install. does not leak gas them there should be know vaccum leak. right or wrong

 

I think this is a better question than most people are thinking...

Umm the injector sits on the seal, but it practically sprays the fuel stright into the cyliner when the valve is open.

If the seals fit tight on the injectors and you tightened the rail down, i dont see there being a problem.

I would take some carb cleaner and spray it around the base of the injectors while the car is running. If the idle changes, you have a leak.

 

i got chipped po6 basemap for 450cc and 8psi. is the timing advanced for turbo, i havent put charge pipe on let but it idle for 15k 28k over and over.

 

bump