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Quick question, regarding engine temps. I hooked up the temp sensor to the engine case, to get a ballpark temp reading. Using this technique any idea what I should be looking for or rather when the oil is likely getting too hot?

thanks josh



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As quick questions go, this is a tough one Josh. Over the years, I have installed two temp indicators. I have the Vapor oil sensor installed in the drain plug and also have an oven thermometer placed into the bottom gap on the back rear of the cylinder head. In both instances what I was looking for was a 'day to day reference' my expectation was to pretty much see the same numbers. Anything out of the ordinary ment conditions had to be out of the ordinary, or something was wrong.



One the lower backside of the cylinder the number that I generally see in the Summer is ( I believe) 300 degrees. Now with the oil temp, since I have a cooler, it generally reads 248. If it seems inclined to get hotter (Summer day and long climb) I will turn on the fan. With the increased air flow on the cylinder my max oil temp seems to be 260. Without the cooler and fan, on a long climb during the Summer, it would seem likely to me, that oil temps would creep up around 300. Hope this helps. Gerry











 

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like your oven temp thermometer idea. Easy to read and cheap......
 

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^ I would really like to get one of these ^



Does anyone know how I can get one? I love
this thing and I cant find it ANYWHERE? They should be stock on our TWs.
 

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Discussion Starter #8
^ I would really like to get one of these ^



Does anyone know how I can get one? I love
this thing and I cant find it ANYWHERE? They should be stock on our TWs.
My guess is this is a european only model. I have never seen it before, maybe one of the tw-historians can weigh in?

Good look with the search, that is a pretty sweet tach/control center. Way better than the ones we have.imo

Josh
 

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Lookls like the standard Yamaha cable-driven tach from early XT's, etc. which won't work on our bikes So either the pic isn't of a TW dash or I'm curious, too.
 

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Maybe he modded it to work with a TW or something, or maybe it is a XT, I'm sure the temps would be around the same for both bikes which means it would be worth posting.



but anyway, damn right it's a nice dash! ours sucks so much in comparison, is it so much to ask to have all the cool gauges?




at least my CB919 has all the gauges
it kicks assssssssss
 

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European dash is the same as yours.



I seem to remember someone posting a thread on the old forum about fitting an XT tacho to their TW.



If you PM Chrisddel I'm sure he will reply, he does speak (or is that write) English, not perfect but pretty good.
 

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When I had the Vapor on my bike, it would run in the mid to high 300's most of the time. If I was running over 50mph for long stretches it would go into the low 400s. This was at the plug though. In hindsight, it would have might have been better to read temp on a head bolt or something.
 

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I'm referring to the tach itself. The only U.S. versions that I've seen on Yamaha products are cable-driven, not electronic. They use a cable similar to a speedo cable. On U.S. models the XT600 drive them from the cam gear, XT350's from the timing gear down low in the cases.



The dash faces, lights and housing appear to be the same, so perhaps Yamaha went electronic on Euro versions, or maybe even on their later U.S. singles as well and I missed the change. Would be handy to know.



If they are the same physical size as the cable-driven versions you'd also need the plastic mounting bracket from the XT as the tachs are not the same size as the indicator light module on a TW. Speedos are all the same and drop right in.
 
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