Power problems?

[hoecake]

Hello, my Derbi Atlantis is having some problems (as usual). Whenever i full throttle, the scooter seems to bog down. This problem was way worse before i reduced the main jet from a 67 to a 62, but is still there. The scooter also seems to run way better when cold. When cold it seems i can full throttle, and it isn't as slow from standstill. Me not being able to full throttle also creates problems like going up hills. Since i am quite the big guy it dies down and goes about 30km/h up hills, on significantly lower revs than i would like. Everything is stock, but i have removed all restrictions including the brass plate in the carb, the rubber doohickey in the airbox and ive put on a new exhaust. A Yasuni Eco with the restriction still in place. Im confused in what im supposed to do. Thank you guys so much🙏

[aeroxbud]

You need to remove the restriction from the eco pipe. It is seriously limiting your power.
The Yasuni eco is not a bad pipe. All its power is low down, so it should climb hills well once sorted.
I take it you have got the Piaggio engine with the 17.5 Dellorto?

[hoecake]

May 30, 2024 2:41:15 GMT -5 aeroxbud said:

You need to remove the restriction from the eco pipe. It is seriously limiting your power.
The Yasuni eco is not a bad pipe. All its power is low down, so it should climb hills well once sorted.
I take it you have got the Piaggio engine with the 17.5 Dellorto?

yeah, stock 17.5 carb

[Zino]

Take the restriction out of the pipe it is seriously holding you back
Dave54 noticed a big differnece
reference this 49ccscoot.proboards.com/thread/32218/1999-yamaha-zuma-cw50l