'04 36 volt problem with acceleration

[bigperm]

We have an issue with a cart. 36v full charge, when trying to go forward it will only run 7 mph. If you go in reverse first and switch F/R switch quickly once solenoid clicks from R to F it will then run 17 mph.

We replaced igniting switch and solenoid. Tried a new controller, speed sensor and ITS. None of these worked.

Will a F/R switch cause this problem? Any ideas?

[yamahaguy97]

Yeah it sounds like your last place to deal with so that should be the issue

[bigperm]

I always start at the most expensive parts. Lol. Thanks

[yamahaguy97]

Lol yeah it's not ideal, but if you already had the parts handy for example, then it's ok. Us mechanics don't like to be "parts changers" that's why we typically rely on testing/diagnosing with a meter before we go changing stuff out. Sometimes though I know I'm guilty of being a parts changer

[bigperm]

Wrench for a living and hate a parts changer! Electric cart is on my last nerve. Checked all voltages have resulted in me being a parts changer.

[Sir Nuke]

Originally Posted by bigperm

We have an issue with a cart. 36v full charge, when trying to go forward it will only run 7 mph. If you go in reverse first and switch F/R switch quickly once solenoid clicks from R to F it will then run 17 mph.

We replaced igniting switch and solenoid. Tried a new controller, speed sensor and ITS. None of these worked.

Will a F/R switch cause this problem? Any ideas?

YES I do.....what is happening is its staying in REVERSE mode, which is half speed. look at the microswitch on the F&R that has the Orange wire on it.....it might not properly aligned or even going bad.....as it sounds like when you shift into Forward, the controller isn't getting a signal to go back to full speed.