Reply To: 61 plate gt125r electrical problems

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If it’s only running one cylinder and you definately have spark you need to think about intake and compression so 1st thing to do is a compression test it will run on anything above around 60psi not well of course but it would run … If you have good compression you should move to the intake checking for any splits in the manifold make your the jest are clean and carb is set correctly … If you don’t have good compression 1st thing take rocker cover off. And flywheel inspection cap set to tdc and check the valve timing on the compression stroke after the intake valve closes can see timing specs on a free workshop manual for GT @manualslib.com or feel free to ask me for more info if the timing is ok check the head gasket for any damage / leaks and check the piston rings