Katie Bond asked ... Fixing auto threader on Baby Lock Enlighten Overlocker?    |    Chris. asked ... Miele W800 novotronic washing machine?    |    Larry asked ... How to stop my steam iron from leaking. Model dw2463 Rowenta?    |    HT asked ... Radio code Philips 22RC200/35?    |    Roberta asked ... DW5080?    |    Click here to ask your question

how can i fix my SYM Symply 50cc?

everytime i rev it the exhaust backfires and i loose speed and then it cuts out
can anyone help me sort it out???
Matthew, April 2008
Backfiring is usally a problem with the timing, eg; fuel igniting when the valves are not fully open/closed, get it retimed

Brian Horsman, August 2008
i would put a new spark plug in it

adam actual motorcycle mechanic since 1982, April 2008