40 Series Reverse Wound Spring, Yellow

Greetings I hope you are well, if someone can help me buy this clutch for my son's go kart with an 8hp engine and it does not have strength going up, which springs should I mount so that it has more strength going up and torque than speed on flats. Thank you.

40 Series Reverse Wound Spring, Yellow

Works like a champ!

I think lost by USPS

worked perfectly for my need. had no room to mound driven pulley as it should be.

My spring was delivered quickly and it works perfectly.

Fast shipping excellent product

40 Series Reverse Wound Spring, Yellow

I received the spring, but I didn't receive everything I ordered. I was missing the hez screw and plate for the carburetor