Author Topic: TBS with Harmonizer  (Read 5550 times)

Offline Spaggy

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Re: TBS with Harmonizer
« Reply #30 on: September 12, 2016, 11:25:08 am »
Bummer to hear about Grok. I love my Harmonizer.

Offline JRE

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Re: TBS with Harmonizer
« Reply #31 on: September 12, 2016, 02:22:46 pm »
Thanks all. I'm going to have the shop up the street do it for me. My idle has gotten rough/low and even in touring mode it's very jumpy at start and I suspect this is the cause.
Joe
I'm silently correcting your grammar
2014 Yamaha Super Ténéré ES
2009 Honda XR650L

Offline RonH

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Re: TBS with Harmonizer
« Reply #32 on: September 12, 2016, 08:15:25 pm »
I use the Morgan Carbtune as someone else mentioned. I must be very lucky or just easy on equipment as I just synced my TBs for the first time since new at 27,000 miles and they needed no adjustment. Still synced just perfectly.
2017 Super Tenere 1200ES, 2008 Honda GL1800 Goldwing

Offline whisperquiet

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Re: TBS with Harmonizer
« Reply #33 on: September 12, 2016, 10:34:57 pm »
I use an old Motion Pro set of mercury sticks  (yes, real mercury)  and check everything again with my TwinMax.
I've checked my current 2013 S10 twice in the first 10,000 miles and they have been spot on both times.

Offline fredz43

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Re: TBS with Harmonizer
« Reply #34 on: September 13, 2016, 01:42:12 am »
I use an old Motion Pro set of mercury sticks  (yes, real mercury)  and check everything again with my TwinMax.
I've checked my current 2013 S10 twice in the first 10,000 miles and they have been spot on both times.

At least they seemed to be spot on according to those crude instruments.  ;D

Hi Dennis. See you tomorrow at lunch.
You're only young once.
BUT, you can be immature forever! :-)

In theory, there is no difference between theory and practice.
In practice, there is.

Offline whisperquiet

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Re: TBS with Harmonizer
« Reply #35 on: September 13, 2016, 07:28:35 pm »
At least they seemed to be spot on according to those crude instruments.  ;D

Hi Dennis. See you tomorrow at lunch.

Fred,

  I am at the trailing edge of technology........always!

Offline bnschroder

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Re: TBS with Harmonizer
« Reply #36 on: May 28, 2017, 02:48:07 pm »
Trying to do TBS with a Carbtune but one cylinder (right side) gives a very shaky reading, making it impossible to sync. Any idea what causes the shaky vacuum.?


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Offline Don in Lodi

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Re: TBS with Harmonizer
« Reply #37 on: May 28, 2017, 03:54:43 pm »
Trying to do TBS with a Carbtune but one cylinder (right side) gives a very shaky reading, making it impossible to sync. Any idea what causes the shaky vacuum.?


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Did you open it from the fully closed position? 3/4 of a turn out from seated, balance the other to that.
Don in Lodi
2012 Tenere
1997 Royal Star
1984 CB900
1986 XL600
1981 XL185
1969 CT90

"ride what you want, want what you ride"

Offline bnschroder

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Re: TBS with Harmonizer
« Reply #38 on: May 28, 2017, 04:28:49 pm »
I did - but I hadn't checked it before I turned the right (supposedly fixed) side out. Now I am wondering if I should close the right side again fully, despite all the advice here on the forum to turn it out 3/4

Offline Don in Lodi

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Re: TBS with Harmonizer
« Reply #39 on: May 28, 2017, 07:30:19 pm »
I did - but I hadn't checked it before I turned the right (supposedly fixed) side out. Now I am wondering if I should close the right side again fully, despite all the advice here on the forum to turn it out 3/4


Yeah, it's 3/4 out from seated. If somehow it wasn't seated before you added to it... Otherwise you may be looking at an ignition issue. The right hand spark plug wells have a tendency to hold water. Riding in the rain, full body rinse after a ride... Been some corrosion issues.
« Last Edit: May 28, 2017, 07:37:57 pm by Don in Lodi »
Don in Lodi
2012 Tenere
1997 Royal Star
1984 CB900
1986 XL600
1981 XL185
1969 CT90

"ride what you want, want what you ride"

Offline bnschroder

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Re: TBS with Harmonizer
« Reply #40 on: May 28, 2017, 08:57:33 pm »
Operator error - one of the in-line dampers was missing, or rather, had not been put in the line. Always double check borrowed tools.


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Offline Bug Dr.

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Re: TBS with Harmonizer
« Reply #41 on: June 05, 2017, 05:05:13 pm »
Thanks Fred for the video.

I'm glad I got a harmonizer a couple of years ago.  Didn't know about Grok's passing.  I think I need to sync my TBs on my new Tenere soon.
Mike

Offline Thrasherg

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Re: TBS with Harmonizer
« Reply #42 on: November 13, 2017, 04:15:05 pm »
Guys, I was reading this and watched the video (very nicely made and easy to follow), so all this is doing is ensuring the inlet manifolds are balanced at idle. How do we ensure that both throttle bodies are synced and opening the same amount at part and full throttle? This adjustment I believe is just changing the throttle stop for each butterfly flap, but once you start opening the throttle, one valve could be opening up immediately and the other one opening much later, surely it is important that both valves open at the same time and by the same amount? How is that checked and calibrated? Or is it just assumed that Yamaha put everything together perfectly and they must therefore match?
On my Rg500 there are dots on the throttle slides, you have to open the throttle until the dot on carb number 1 aligns with the top of the inlet tract, and you then adjust the throttle cable on the top of each other carb until the dots on all the other carbs match number 1, then the carbs are synced at part and full throttle opening. Each carb also has it's own idle stop screw and you use a similar technique to sync the carbs at idle. so based on my RG experience I wanted to ask how we sync the butterfliy valves at part and full throttle openings?

Regards Gary

Offline jbrown

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Re: TBS with Harmonizer
« Reply #43 on: November 13, 2017, 08:06:47 pm »
... This adjustment I believe is just changing the throttle stop for each butterfly flap, but once you start opening the throttle, one valve could be opening up immediately and the other one opening much later, surely it is important that both valves open at the same time and by the same amount? How is that checked and calibrated? Or is it just assumed that Yamaha put everything together perfectly and they must therefore match?
...
Regards Gary

On the S10, you are just changing an air bleed adjustment. The throttle bodies share a single shaft and there is no mechanical synchronization of the butterfly valves possible. When I adjust mine at idle they are not nearly as well synched while cruising at 50 MPH. If I adjust them to match  very close at 50 (takes a very large adjustment!), they are way off at idle. So I consider this a low speed adjustment. But some have seen a significant decrease in vibes after an adjustment, so I assume they can sometimes be way off.

 

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