Tamiya 540 25T Motor with Grasshopper

stevecyw · 發表於 2008-3-16 15:19:57

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Hi brothers, I have installed the sport tune 25T 540 motor into my grasshopper, however, I have 2 questions.

1. When reversing the motor, a lot of sparks and the motor is very noisy (there is only little spark when forwarding)

2. According to the motor spec, it runs on Gear Ratio 6.5 - 7.5, but I dont know the gear ratio of my grasshopper, can any brother help?

Thank you.

williamau · 發表於 2013-8-7 17:10:42

本帖最後由 williamau 於 2014-4-16 13:41 編輯

Is 18T instead of 25T pinion? It should not too loud. I using 6.5T brushless 7.2V full bearing.

for your reference!

Allan007 · 發表於 2013-8-7 23:00:25

williamau 發表於 2013-8-7 17:10
Is 18T instead of 25T pinion? It should not too loud. I using 6.5T brushless 7.2V full bearing.

htt ...

相隔左五年先有人答

kelvinayhh · 發表於 2013-8-7 23:16:51

:lol

williamau · 發表於 2013-8-8 09:39:11

I,m new user ah

, just find all topic of grasshopper & hornet. I'm a grasshopper fans

Delta. · 發表於 2013-8-13 08:56:43

五年

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