For someone with little knowledge I'd advise setting aside a whole day to look at it, not just an hour or so!
As for the air filter, take it out and run the bike without it if there's no change then it's not the air filter!
When it's running out of steam have you got the throttle fully open? Or are you opening it more and nothings happening?
How far round does it twist - imagining released its at 12 o'clock - does it twist back to 9? 8?
As for the air filter, take it out and run the bike without it if there's no change then it's not the air filter!
When it's running out of steam have you got the throttle fully open? Or are you opening it more and nothings happening?
How far round does it twist - imagining released its at 12 o'clock - does it twist back to 9? 8?
Some say...