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#3704
♠️ M77
👑 Admin
  • Topics: 40
  • Replies: 2,986
  • Country: UK
  • Bike Model: GT

Moved to “Technical”.

If you also go for a fast sprint, then all of a sudden the bike comes to a halt.   Attack these below:
– Fuel Pump (open it, check for dirt)
– Clogged Carbs  (plugs will look glazed white if its too lean to run top gear all the time)
– Because of leaning running (i hope not), the plugs will go as hot as they can then they slow the bike down by force.
– Check that floats are 7mm tall , crucial for everything.  (Carb will be upside down on table & measure float height)
– Check vacuum system is tight and good (Intake O Rings,  Intake Pipes,   Vacuum Lines)
(makes it very hard to start 125cc Hyosungs with air leaks)
– If you filter is old, consider changing it, it may reduce fuel flow if its bad.

Let’s try these ,  before attacking anything else on the bike.  Good luck and let us know.