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79 P200E (Ruby), 62 Allstate (B-62)
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79 P200E (Ruby), 62 Allstate (B-62)
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Has anybody tried one of these? I'm looking at getting a CHT and it'd be nice to know what I'm revving the engine to. I almost bought a Trailtech CHT but this one is $5 more for a tach included. Hmmm.

https://www.amazon.com/SEARON-Tachometer-Temperature-Motorcycles-Lawnmowers/dp/B01COW8NGE/ref=sr_1_fkmr0_1?s=automotive&ie=UTF8&qid=1534901695&sr=1-1-fkmr0&keywords=searon+tach+hour+temp

Anybody using a combo unit out there? If so, what brand / kind?

Thank you!
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@chandlerman avatar
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Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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@chandlerman avatar
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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I run both tach & temp and would not want to have to pick either/or due to only having a single display, and it's not like you're going to be swapping between them on the fly.
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79 P200E (Ruby), 62 Allstate (B-62)
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@qascooter avatar
79 P200E (Ruby), 62 Allstate (B-62)
Joined: UTC
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Location: Florence, OR
UTC quote
chandlerman wrote:
I run both tach & temp and would not want to have to pick either/or due to only having a single display, and it's not like you're going to be swapping between them on the fly.
Good point! I didn't even think about that. I'd definitely want to see both and it'd be way too difficult to change screens while riding. What gauges are you using?
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parallelogramerist
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parallelogramerist
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A tach is handy for setting up the engine, but once it's dial in, I haven't really seen a constant need for it. If I bought that gauge, I'm guessing that 98% of the time I would have it scrolled over to the temp display.
I have tuned T5 with a Trailtech tach, and I find that I rarely look at the RPMs.

So does that gauge have a backlit display for night riding?


EDIT: it does have a backlit display!
@chandlerman avatar
UTC

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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Lucky
@chandlerman avatar
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
Joined: UTC
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Location: Nashville

39 Days Since Last Explosion
UTC quote
I run Trailtech for both Tach & Temp, but also a Koso temp gauge which has a sensor tapped into the cylinder head. Eventually, I'll drop down to one, but that day hasn't arrived yet.

Also, while the Koso has a nice large display and a backlight powered off the 12v DC, it's powered by a CR2032 battery, which likes to die at the most inconvenient times, so the Trailtech is there as a backup for when that happens, too.

The red lighting is a small LED map light that I wired to the pilot light circuit. In the winter here, it's necessary because it's dark about 99% of the time.

In this photo, I had both the trail tech ring sensor & the Koso to compare their readings. The Koso read consistently about 5-10 degrees cooler, btw.

I use the tach for a number of things on an ongoing basis. It's as a sanity check of my speedometer. I know my speed at given RPM's because the speedo gets increasingly inaccurate past about 50 MPH.

If the engine doesn't kick over right away, it tells me if I have spark or not. It makes idle adjustments and checking timing with a variable timing igntion dead easy.

I also ran a dual CHT/Tach analog gauge for ultralight's for a while and liked the analog readings, but it eventually died and it was kind've pricey (~$75 plus shipping, iirc), so I never replaced it.
Yes, it was really 12f when I took this picture before riding to work.  The Koso only reads down to 32f.  The Trailtech reads to zero.  Guess how I know.
Yes, it was really 12f when I took this picture before riding to work. The Koso only reads down to 32f. The Trailtech reads to zero. Guess how I know.
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UTC

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79 P200E (Ruby), 62 Allstate (B-62)
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Posts: 4249
Location: Florence, OR
 
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79 P200E (Ruby), 62 Allstate (B-62)
Joined: UTC
Posts: 4249
Location: Florence, OR
UTC quote
chandlerman wrote:
I run Trailtech for both Tach & Temp, but also a Koso temp gauge which has a sensor tapped into the cylinder head. Eventually, I'll drop down to one, but that day hasn't arrived yet.
Thanks for the explanation on how you use them and the picture. I can see I'll want separate readouts so no need to wait for one or the other. I'll hook up the CHT first.

And I'm liking your night light - good one!

Thanks again!
⚠️ Last edited by qascooter on UTC; edited 1 time
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parallelogramerist
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parallelogramerist
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I've been thinking about getting a couple of the Trailtech TTO gauges on my PX, but it seems like just buying their Striker or Vapor computer would be a better (simpler and cleaner) idea. They both have tripometers, so that would be kinda cool for checking fuel mileage as well as for road trip distances. The Vapor would be a backlit screen that would have RPMs, temp, and speed, all on at the same time. The Striker doesn't have a tach, but instead it has a volt meter. A volt meter it more important for me compared to a tach, because of all of the electric draw I have on my PX. I don't really need the extra speedometer because I recalibrated my PX speedo with a GPS, but it is a welcome addition.
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