Solana 49cc gos to 10 to 15 but no faster By kaminoryu (Read 1,089 times)

[kaminoryu]

Hello I'm having the same issue but with a 2016 vitacci solana 49cc yn50qt-8 it has vacuum petcock and I don't really know if all of the vac hoses are there and I'm not even sure if the evac tank is supposed to be Hook up to anything all the hoses are not cut or anything the air filter is clean the carb is clean and has a welch plug it has oil and new fuel filter it cranks up good and it idling good just when your going down the road you can give it full throttle it bogs and losses speed and trust to die keep throttle in a sweet spot and it go 5 to 10 mph get to a hill and it starts bogging down unless you constantly rev the throttle like a mad man just to get going if you want me to upload pictures I can try and I'm sorry if I hi-jacked a post or posting in wrong place

[kaminoryu]

Hi me and a friend put a new carburetor on it it's a 150cc carb and found out the carb that was originally on it didn't have a vacuum line going to it so now it seems to be doing better just still very hard to crank up and seems to have a bog when you turn throttle wide open and doesn't ideal very well it goes to ideal and then revs up it will do that afew times then die and when it revs up if your not on it or holding the brake it will take off

[kz1000st]

I would review the carb situation. A 50cc GY6 has an 18mm carb while the 150 carb is 24mm. The engine could be struggling breathing through the larger orifice.It sounds like vacuum issue and you discovering the original carb could be an indicator. Trace the vacuum lines you have to see if they are damaged or disconnected.All you are describing sounds like a vacuum leak.