Engine/Exhaust Temps - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
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post #1 of 7 (permalink) Old 09-17-2018, 04:49 PM Thread Starter
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Engine/Exhaust Temps

Thought I'd share here too. Immediately after a 20-mile 30-minute ride.

https://photos.app.goo.gl/TnQV7XWBT5aYrUBLA

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Last edited by Bucfan11; 09-17-2018 at 04:51 PM.
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post #2 of 7 (permalink) Old 09-17-2018, 07:23 PM
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The temps look very good. The exhaust temps are actually pretty low. The engine cylinder one are well below the 300 mark. The cylinder temp is always higher than the oil temp. Keeping oil below 300 has always been the goal in any engine and looks like Yamaha did good.
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Last edited by lesblank; 09-17-2018 at 07:26 PM.
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post #3 of 7 (permalink) Old 09-17-2018, 08:58 PM Thread Starter
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Quote:
Originally Posted by lesblank View Post
The temps look very good. The exhaust temps are actually pretty low. The engine cylinder one are well below the 300 mark. The cylinder temp is always higher than the oil temp. Keeping oil below 300 has always been the goal in any engine and looks like Yamaha did good.
I was shocked at the exhaust pipe temps, the heat shield work really well.
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post #4 of 7 (permalink) Old 09-18-2018, 08:07 AM
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the exhaust is the temp of burning gasoline - its blown out of the cylinder within milliseconds of being ignited.

On some high performance engines the exhaust pipes will glow red at night.
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post #5 of 7 (permalink) Old 09-18-2018, 10:32 AM
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I am going to use my temp sensor, for grins and giggles, to see what the temp of my exhaust is. I'll report back.

No matter what you ride. Just ride!
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post #6 of 7 (permalink) Old 09-18-2018, 11:55 AM
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checking the temp of the exhaust pipes right at the heads is a good way to see if the pistons are running pretty much evenly.

The cylinders and heads will be different because of the airflow over the engine, unless the engine is watercooled.
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post #7 of 7 (permalink) Old 09-19-2018, 06:01 PM
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I am going to use my temp sensor, for grins and giggles, to see what the temp of my exhaust is. I'll report back.
So this morning, I checked mine about a minute after starting up Big Bertha. 90F both pipes at header.
Road to work. 30 mile, 50 minutes. 196F at header. Engine around headers, between 194F - 204F.
I'm ok with that. But, I gotta say. The rear pipe is under the upper inside of my right leg and it feels WAY HOTTER then that at lights. As we all know, feelings & facts are not always the same.
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Last edited by Scrumdown; 09-20-2018 at 07:56 AM.
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