Temperature light, how does it work?
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@bird902 the rev counter on the DT125r is mechanical, cable operated. You can get a radiator pressure cap with a built in temperature gauge. Just be sure to get one rated for the correct pressure which is 12.8 psi. Here's a link to one at 13 psi which I'm sure would be close enough. In fact they both also state 0.9 bar equivalent.
https://www.ebay.co.uk/itm/283692838413?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=tPhH5CybRYK&sssrc=2349624&ssuid=7ztfcrwyt6w&var=&widget_ver=artemis&media=COPY -
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@bird902 to be honest bud I'm not familiar with bar. As I said they both state the same equivalent. As far as I'm aware the opening pressure is 12.8 psi. But I think you may be right about the quality of them. Not tried them myself but as Dan said digital ones are available.
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@markus-w 1 Bar = atmospheric pressure = 14.7psi, so (12.8/14.7)psi = 0.87 Bar
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@HOTSHOT-III am I right in thinking that the opening pressure is 12.8 PSI? I got it from the Haynes manual but they have been known to make mistakes. Bird902 got me thinking now as he/she said it's 1.1 bar.
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@markus-w Just looked in my '88 (round slide carb DTR) Yamaha service manual, they say 10.7-14.9psi. But both my '98 bikes have 1.1 (16.2psi) stamped on the rad cap, one of which I bought genuine by part number for that specific bike by VIN number to try before replacing the head gasket (it was losing 150ml of coolant every 90 miles when I bought the bike).
So it could be the case that Haynes took the figures from the '88 manual, stated 12.8psi as an average, then never bothered to update it as they've made similar inaccuracies with carbs and stuff. And there's a myriad of small differences like that between the '88 DTR and '89 onwards.
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@HOTSHOT-III yes I've noticed a few mistakes. Thanks for clearing that up.
