After a lot of digging and research regarding the TPS, I’ve made a few discoveries.
The throttle position sensor on this bike is a combined TPS, manifold pressure sensor and intake air temperature sensor. It’s a Mikuni component called the Modularised Air Quantity Sensor (MAQS).
Doing some more digging and it appears that it’s used on a number of bikes such as the Suzuki Bandit 1250, the Yamaha YW125 Zuma and the Yamaha YZF125R. I found a YZF125R sensor on eBay for £35 so thought it was worth a punt. It arrived this morning and, indeed, appears identical to the one on the Husky. I’ll need to plug it in to test it to be sure, but I suspect a sensor is a sensor in this regard.
Also, in checking the parts fiche for the Yamaha YZF125R it appears that the throttlebody and MAQS is also a single part there too. This leads me to believe the whole lot is supplied by Mikuni as a single item, with no expectation of the dealer to replace the MAQS.
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Update to this. The MAQS does indeed fit, but it appears it needs recalibrated as the positions aren’t quite right. It was showing 0% open for far too long, before jumping to about 10%, and with the valve fully open it was showing only 89%. The bike would run with it like this but was notably down on power, and, I suspect, it would also be running a little lean. When I have a bit more time, I’ll put this MAQS back on and see if I can recalibrate it from the iBeat diagnostics software.
http://www.cafehusky.com/threads/electronic-throttle-body-help-please.39416/#post-379243
Hey,
I posted this thread on Husky with maybe throttle body problems? I assume you have the TE 630 as well and experienced the same problems like me. Please let me know how successful you were with this swap. I did read that you were, but this post was a while back. Did you have to change it again? It seems like once moisture hits it its fried. Thanks in advance