What are your cells? how old are they? could they be high resistance and you are hitting the low voltage cut out on the speedo, not the thermal cut out?
I had this myself with the BMAX4iii and a 5.5 with some cells that were not up to the job. Thought it was thermal cutout, but it was low voltage cut out. Disable it and try it again, or try a new battery pack.
Honestly though a 5.5 is a bit mad for indoors. You will go quicker with a tamer motor. I use a 7.0 in my yz4, and did in the bmax4iii during the summer outdoors.
Edit - I just re-read.
Also put motor timing to 0deg. Gearing, you'd want to be about 18-19/87. Under or over gearing isn't that critical between 1-2 teeth in a healthy system.
This issue reminds me of mine with the low voltage cut out. You can run a motor fan, (the orca or MR33 fan mount works great), but it won't fix this.
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Team Yokomo - YZ-2CAL3 | YZ-2DTM3 | YZ-4SF2 | YZ-2T | YZ-2DTM Worlds | YZ-2DTM x2 | YRX-12 x2
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10electric | Batley Buggy Club | YORCC | RHR | MB Models
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Last edited by neallewis; 25-01-2016 at 10:42 PM.
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