Harmonizer TBS method

[colorider]

Okay - for those of you that have purchased/used the new Harmonizer TBS gadget, tell me how you did the adjustment.

Did you simply balance using the original factory settings or did you first tweak each TB 3/4 turn CCW and then balance? About how much did you have to adjust the "non-master" TB to sync? At what RPM did you make your check and adjustment?

And last, did you hook the unit up directly to the throttle bodies or did you use extension hoses like have been discussed here?

As I have mentioned in other threads, my adjustment went bad, resulting in poor performance, back-firing, significant "stumble" at some RPM ranges and loss off fuel mileage. Before I delve into the CO adjustment, I need to make sure my TBS is at least close.

Thanks!

Rod

 

[SpeedStar]

Hey Rod, I did my airscrew adjustment first. 270 degrees out on both screws. Then synced by turning the left screw clockwise to get to exact .000m/bar on Harmonizer. I did use the pigtails on mine. I set it at idle and blipped the throttle after each slight adjustment of the screw. Once I was sure of the setting at idle, I also ran it up to about 3000 rpm and it was still good there too.

 

[Koinz]

Rod, is the engine light coming on at all during any of your symptoms you described?

 

[colorider]

Rod, is the engine light coming on at all during any of your symptoms you described?

Hey Rod, I did my airscrew adjustment first. 270 degrees out on both screws. Then synced by turning the left screw clockwise to get to exact .000m/bar on Harmonizer. I did use the pigtails on mine. I set it at idle and blipped the throttle after each slight adjustment of the screw. Once I was sure of the setting at idle, I also ran it up to about 3000 rpm and it was still good there too.

This is exactly how I did mine EXCEPT when I ran mine up to 3K is was off some - but returned to .000/bar when back at idle.

This has been very disappointing. My ride today included some moderately steep downhill dirt roads and the bike was backfiring badly at anything above 2K RPM. Mileage on this last tank was not as bad as the previous one, but then I was not running the bike as hard either.

 

[SisuTen]

For those who have done this. How did you determine that the 3/4 turn-out adjustment is correct. Is it simply a wild ass guess or is there documentation for this? 3/4 of a turn out seems to be quite as bit.

I suspect what is good for sea level or low elevation may not be good for 5000 ft (where Rod lives)

I also think that the best backyard method to do this adjustment is to back the screws out equally and incrementally until the problem at initial throttle opening is corrected. Then do the TBS.

If my assumptions are wrong, please correct me......with documentation of course.

My bike doesn't seem to have the "snatchiness" issue, so when I get the Harmonizer I will synch with the original settings.

Good Luck, Rod. Let me know if I can help out.

Paul

 

[jajpko]

Okay - for those of you that have purchased/used the new Harmonizer TBS gadget, tell me how you did the adjustment.

Did you simply balance using the original factory settings or did you first tweak each TB 3/4 turn CCW and then balance? About how much did you have to adjust the "non-master" TB to sync? At what RPM did you make your check and adjustment?

And last, did you hook the unit up directly to the throttle bodies or did you use extension hoses like have been discussed here?

As I have mentioned in other threads, my adjustment went bad, resulting in poor performance, back-firing, significant "stumble" at some RPM ranges and loss off fuel mileage. Before I delve into the CO adjustment, I need to make sure my TBS is at least close.

Thanks!

Rod

Rod, it sounds like you may have an air leak. Go back and set the bike up the way it was. If you are using the 5/32 hose, buy enough 7/64 to make the t connection for your harmonizer lead on the left side and enough for the short connection on the right side.

The hoses on the harmonizer I think are too big in ID. I used a 5/32 connector on those leads and then used a small piece of 7/64 hose on the other end of the connector to mate to the bike. This gave me all good connections.

Now start back and set the CO to +3 and the the TBS painted screw to 1/4 and sync. When done put the old vacuum lines on. Now take it for a ride and see what it feels like. If you like it there, stop, if not, make your changes in small increments until you feel it is what you want. This is just my opinion and I hope whatever you do works.
Jim


P.S. If you have not done so already, buy some(they come in a pack here) 1/8 vacuum caps and use one on the right side instead of the OEM. They fit nice and tight and you don't need the spring clip.

 

[SpeedStar]

The 270 degree setting is the recommendation that I originally got from a Yamaha technician that had been given the information from Yamaha as a fix to this issue that their customers bike was having. He then passed the info on to me when I called and pressed for it.

That said, it is somewhat of a guess and many variables come into play. Luckily, it is easy to adjust and try different settings.
Mine made a huge improvement immediately. Keep in mind, mine is a Ca bike.

 

[SisuTen]

Thanks for the clarification Devin. Being as you're in San Diego, I would almost bet the settings are different here at 5000 Ft Elevation.

Thanks for the confirmation, Jim. I'll be doing the CO and TBS with your recommendations. Since the bike is doing fine, for now I'll leave it and do the changes all at once, when the Harmonizer gets here.

Paul

 

[colorider]

Rod, it sounds like you may have an air leak. Go back and set the bike up the way it was. If you are using the 5/32 hose, buy enough 7/64 to make the t connection for your harmonizer lead on the left side and enough for the short connection on the right side.

The hoses on the harmonizer I think are too big in ID. I used a 5/32 connector on those leads and then used a small piece of 7/64 hose on the other end of the connector to mate to the bike. This gave me all good connections.

Now start back and set the CO to +3 and the the TBS painted screw to 1/4 and sync. When done put the old vacuum lines on. Now take it for a ride and see what it feels like. If you like it there, stop, if not, make your changes in small increments until you feel it is what you want. This is just my opinion and I hope whatever you do works.
Jim


P.S. If you have not done so already, buy some(they come in a pack here) 1/8 vacuum caps and use one on the right side instead of the OEM. They fit nice and tight and you don't need the spring clip.

I did not think I had a leak as there have been no warning lights in any condition and I did use spring clamps on all of the original connections since the 5/32 tubing is larger than the OEM fittings. I may still try to find some 7/64 tubing just as a precaution.

I'll give your idea a shot once I get home and settled.

Thanks!!

Rod

Paul, hopefully I will have all this figured out before you get your Harmonizer.

 

[SisuTen]

Thanks! Keep me updated
Paul

 

[colorider]

Thanks! Keep me updated
Paul

I picked up some of the smaller tubing when I got home yesterday. I'll install it today and go from there.......

 

[Jakeboy]

I did the idle screw/TBS using my Twinmax balancer (3/4 turn out on right screw, etc.), and bumped the CO settings to "7". Ran a tank. 36 mpg.

I had the bike fully loaded for an upcoming trip; large Northface duffle mounted crosswise on the pillion seat, both Micatechs loaded and the Givi E36 top case mounted and loaded and a small tank bag. Calsci medium screen w/Yamaha wings. 90% freeway riding at a GPS average of 75-80 mph with a few sprints to 100, premium fuel. TCS1 and T mode. 1500 miles on the bike. Sea level, 90 degree ambient temp, high humidity (this is Florida!), calm conditions.

I dropped the CO settings to "5", and will check the mpg tomorrow on the first leg of my trip. The conditions should be fairly close to the 36 mpg benchmark. I'll try and post up tomorrow night from my I phone.

 

[~TABASCO~]

What where your thoughts on 3/4 out and 7 ? I had mine at 6 and 3/4 and was great !

 

[Jakeboy]

What where your thoughts on 3/4 out and 7 ? I had mine at 6 and 3/4 and was great !

The idle and off idle performance was great. I could pull away from a dead stop with no throttle input! The poor mileage may be due to the CO settings, as well as the loaded bike. That Northface duffle hangs over the Micatechs quite a bit, causing some wind drag. Tomorrow will be a good control experiment, as I've only changed the CO. Everything else will remain the same, so even with the wind drag of the Northface, I should get a good, relative comparison. After tomorrow, I'll be getting into cooler temps and higher elevations, so Ill lose the standard conditions until the last leg of my return trip next week.

 

[SisuTen]

I picked up some of the smaller tubing when I got home yesterday. I'll install it today and go from there.......

It will be interesting to find out if elevation really makes a difference in these settings. I find it hard to imagine it won't.

Paul

 

[colorider]

It will be interesting to find out if elevation really makes a difference in these settings. I find it hard to imagine it won't.

Paul

Still don't know what the correct recepie is going to be for us fiolks at higher elevations - or if it even makes a difference. This morning I installed the smaller tubing, set the CO setting to +3, re-checked the TBS and took a short ride. It seems to run better and less stumble. Hard to tell if all the back fire is gone until I can find a steep hill to come down. Buttoned it all back up and then decided to set the CO to +6, but did not ride after the last tweak.

 

[SisuTen]

What was your start point for the TBS? 3/4 turn out? I'm thinking that is the key.
Paul

 

[slipangle]

For the record, 3/4 turn on the throttle body and the +6 on the CO setting really did the trick for me.

I'm still breaking it in at 600 miles, and with that in mind I'm not into the throttle hard, but I'm getting an overall average of 52mpg via the optimistic computer. My commute has been on various surface streets in the area, so my average speed is around 50mph. Riding on the interstate at an indicated 80mph, the instant mpg returns that the computer gives are + or - 45mpg. Before the adjustment, my overall average was said to be 49mpg, so there's a small improvement at my modest speeds, although that is possibly the engine loosening up.

The altitude I'm riding at is usually from 2500 to 3500 feet. I haven't purchased any bags yet, so the bike is still as aerodynamically uncompromised as it can be.

I'm very pleased with the quality of the throttle response after the adjustments. I never had any problems with the 8mph idling around in gear: it would tractor me around both before and after. What I didn't like was what I interpreted as a snatchy throttle. It lacked consistency at small openings. I tried both Sport and Touring modes. Sport was too hyperactive, and Touring felt lazy and especially inconsistent. Now, the throttle response in Touring feels very smooth.

 

[~TABASCO~]

What was your start point for the TBS? 3/4 turn out? I'm thinking that is the key.
Paul

X2.......... what is your turn out? Ive seen 1/2 and 3/4 successful... I have 3/4 with a PC and its the best its ever been with 1000mi on the clock..

 

[jozmoto]

Still don't know what the correct recepie is going to be for us fiolks at higher elevations - or if it even makes a difference. This morning I installed the smaller tubing, set the CO setting to +3, re-checked the TBS and took a short ride. It seems to run better and less stumble. Hard to tell if all the back fire is gone until I can find a steep hill to come down. Buttoned it all back up and then decided to set the CO to +6, but did not ride after the last tweak.

I ride at mostly 6500' to 9500' exclusively. I have settled on 1/2 turn on the air screw and CO at +3. I do not use any additional tubing. I return all the connections to stock. This is not something that will require much adjustment once you have settings you like. BTW: Only a little decel pop which seems normal and not excessive.