Forums 🚥 PiT STOP 🔧 Hyosung Technical Help My motorcycle loses power at high RPMs and full throttle. Reply To: My motorcycle loses power at high RPMs and full throttle.

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♠️ MARCEL
Admin
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@mf448kxn6
North UK
GTR

The manual is incorrect , our floats in the shop are around 7mm (petrol is full inside carb) and they lift up to 17mm (empty fuel)

So the height from that picture should be 7mm. when the carb floats is facing the sky.

Clean the carbs again,   125cc carbs work on 250, just requires “Size 20 Pilot Jets” and “Size 90 and 925 or 92.5 and 95” main jets.

The starter jet gets very clogged easily, you can’t remove it but you can use air compressor all over the carb where you see any holes.  it is very crucial.

We do liquid cleaning , and after carb is dry, we use air compressor to blow everything clean inside the skeleton body

Check for leak or damaged “O-Rings” on Intake Rubber pipes attached to the cylinder heads because they affect everything including vacuum for fuel pump + tap , difficult starting , poor running

 

This picture ,  remove the gold seat , and check O-Rings are OK and clean the mesh filter attached on the other side.

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