yamaha aerox loses power

[damiend]

i have a yamaha aerox 100 that sometimes when going along will lose power and not go faster than 5mph. the bike starts up fine and when going along it will pull off the start quick and pick up speed but then after about 10mins of riding will either cut out or lose all its power and not go faster than 5mph. once this happens the bike will start again but still have no power but if left for a while it will run fine again and then after 10mins it all happens again.

so far i have changed the battery, ht coil, spark plug, stator, rollers, cleaned the carb and checked the jets, blend the two stroke through the bleed nipple and cleaned the air filter.
also i have checked to see if the fuel is getting to the carb and it is.
the problem is still the same!!

please can anyone help it will be very appreciated
thank you hope someone can help

[st3v3]

Is the plug tight in it's hole?

They can loosen and cause a dort of mis/non firing.

Also, check the HT lead and plug cap are secured together.
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