I have recently purchased a stolen and recovered dtr 125 which is a 2002 model i just use it off-road it ticks over as it should but when i am riding it the bike seems to go really boggy just before it wants to come into the band it eventually does come in but today i had the bikes plastics off and the ypvs isn't connected to anything could this be the reason why it is bogging when I'm riding it ? :/ there is no battery on the bike and i think wires have been removed i haven't had one of these bikes before so apologies for not much info i just wanted to know is there anyway round this problem thanks.

put this in workshop