bunchie3174
100 µW
Hi all
I'm currently fitting a Yose Power 350w hub kit to my Boardman MTB and have run into an issue with the PAS.
Firstly as it's a top end 29er it is fitted with beefy FSA cranks and chainwheel so the kit PAS isn't any use. So to offset this I bought a 12 magnet disc and sensor (the 2 half version with circlip). I fitted it to the inside of the smaller chainring (drive side) and mounted the sensor on the seatpost with the crosshairs inline with the magnets.
Test one. Everything worked, thumb throttle, display unit etc...but I had no drive when pedalling. After some closer looks and head scratching we say that the sensor light only illuminated when pedalling backwards. So I changed the display unit parameters From Run-B to Run-F. It made no difference. I then took the chainwheel off, flipped the magnet disc 180 degrees and reassembled. No difference, still ran in reverse only. Changed display settings as per instructions, compared it to a friends bike which has an identical setup/display.
Further testing in all settings confirmed that getting up to speed normal pedalling then pedalling backwards did cause the motor to kick in. Quite a weird sensation but impractical.
I've tried a third PAS disc (8 magnet and sensor on a metal disc) and installed it non drive side. Due to the chunky nature of my BB the sensor isn't able to get within range of the magnets.
I can only get a signal from sensor v2 and guess what? It runs in reverse despite flipping the mag disc 180 and changing the settings on the display.
Do any of you esteemed experts have the remotest clue what is going on? Display is the standard Yose C500.
Ian
I'm currently fitting a Yose Power 350w hub kit to my Boardman MTB and have run into an issue with the PAS.
Firstly as it's a top end 29er it is fitted with beefy FSA cranks and chainwheel so the kit PAS isn't any use. So to offset this I bought a 12 magnet disc and sensor (the 2 half version with circlip). I fitted it to the inside of the smaller chainring (drive side) and mounted the sensor on the seatpost with the crosshairs inline with the magnets.
Test one. Everything worked, thumb throttle, display unit etc...but I had no drive when pedalling. After some closer looks and head scratching we say that the sensor light only illuminated when pedalling backwards. So I changed the display unit parameters From Run-B to Run-F. It made no difference. I then took the chainwheel off, flipped the magnet disc 180 degrees and reassembled. No difference, still ran in reverse only. Changed display settings as per instructions, compared it to a friends bike which has an identical setup/display.
Further testing in all settings confirmed that getting up to speed normal pedalling then pedalling backwards did cause the motor to kick in. Quite a weird sensation but impractical.
I've tried a third PAS disc (8 magnet and sensor on a metal disc) and installed it non drive side. Due to the chunky nature of my BB the sensor isn't able to get within range of the magnets.
I can only get a signal from sensor v2 and guess what? It runs in reverse despite flipping the mag disc 180 and changing the settings on the display.
Do any of you esteemed experts have the remotest clue what is going on? Display is the standard Yose C500.
Ian