[RobDekker]

Ordered the Power Vision 3 from Dynojet. It should arrive next Tuesday.

Power Vision 3 for Honda XL750

We’ve raised the bar when it comes to what you should expect from an EFI tuner. Power Vision’s easy-to-read, no-nonsense display puts performance at your fingertips, empowering you to choose from our library of pre-tested tunes or to build one yourself. The Power Vision tuning device updates the...

www.dynojet.com

 

[Gmiller5m]

Ordered the Power Vision 3 from Dynojet. It should arrive next Tuesday.

Power Vision 3 for Honda XL750

We’ve raised the bar when it comes to what you should expect from an EFI tuner. Power Vision’s easy-to-read, no-nonsense display puts performance at your fingertips, empowering you to choose from our library of pre-tested tunes or to build one yourself. The Power Vision tuning device updates the...

www.dynojet.com

Do they have any tunes or will you have to build them?

 

[Steve-O]

Mine was poor when it was new.Horrible.Now, at 7500 miles its much better.3rd gear, 30mph, no problem.

Agreed, was lumpy round town originally, now seems a lot better, generally drives ok off the speed below the gear number so 20mph upwards for 3rd, 30 mph upwards for 4th, 40 mph in 5th.... Low speed it is a bit jerky in 1st and 2nd, but it is a minor fault. I might be getting used to it, but it seems improved.

 

[TrailRider01]

RobDekker, have you had a chance to install a tune using the PV3? Was there a noticeable difference in power or throttle response? I'm on the verge of ordering one of these but wanted to hear some feedback first.

 

[andeebee]

Ordered the Power Vision 3 from Dynojet. It should arrive next Tuesday.

Power Vision 3 for Honda XL750

We’ve raised the bar when it comes to what you should expect from an EFI tuner. Power Vision’s easy-to-read, no-nonsense display puts performance at your fingertips, empowering you to choose from our library of pre-tested tunes or to build one yourself. The Power Vision tuning device updates the...

www.dynojet.com

Very interested in your findings and experience too. Im suffering the same erratic fuelling in 3rd between 20 -30 mph. I do alot of town riding, filtering and the surging is almost dangerous at points and Im having to compensate or second guess if the bike is going to 'go or die' as I pass a car.
3k miles on the clock now and I swear its getting worse...

 

[neil]

Hi all, I dont have a Transalp, but i do have the 750 hornet, i was just randomly browsing, and i thought i would post this up for you guys. The hornet has similar issues, so maybe this will help somebody here as well, it certainly makes a big difference to the hornet.

throttle.jpg

• neil
• Oct 2, 2024

 

[andeebee]

Great info, thanks for posting. BMW have the same reset on their throttle, I hadnt thought to try it on the TA.

 

[NE Rider]

I have just put on the first 500km on my new Transalp, and what an amazing machine it is! I just love the power and handling -EXCEPT I have been noticing that something is afoul. At first I thought it was just the roughness of the road surface transmitting up through the suspension, however I now realize it is actually the engine doing very small but noticeable (and now very annoying!) micro surges/ jerks or jitters (call them what you may). I would say they happen about 3 times a second and its a similar sensation to having bad gas with condensation (but I have changed my gas out to fresh 91 octane, so that’s not it).

Here are the conditions when this happens:

In Standard, Sport and User (with all settings maxed) modes, it is most noticeable in 3rd and 4th gears, while holding the throttle steady and open between 2000 and 4000 rpm, (as during cruising through a residential area). It only happens on flat, level pavement, not while going up or down a hill, and if the throttle is fully released, or accelerating, it does not happen -it only happens while holding the throttle open and steady.

I have read that a similar phenomenon has been documented with some Africa Twins and is a thing that also happens with other manufacturers’ bikes the have ride-by-wire 270 deg twins.

Does anyone out there know of a fix to this problem? Now that I have noticed it, I can’t un-notice it, and it’s starting to grate at me!

I posted this issue on FB and many other Tranny owners are coming out of the woodwork admitting the same issue.

Hi Westeagle. Are you still having this problem?
I had mine looked at at my dealer. I told the service guy to ride it at a steady speed/RPM. He did admit he felt the jerkiness and entered a "Case" with Honda. Of course Honda claims they have never heard of this problem. As I mentioned in my previous post, I love the bike other than this issue. I'm not enjoying riding the bike like I should be because of this micro surging. I understand the lean fueling and all that but I can't imagine this level of surging is happening on every 2024 TransAlp.
Please let me know if you've gotten anywhere with this problem or if it is still happening.
Thanks NE Rider

 

[FHR]

Hi all, I dont have a Transalp, but i do have the 750 hornet, i was just randomly browsing, and i thought i would post this up for you guys. The hornet has similar issues, so maybe this will help somebody here as well, it certainly makes a big difference to the hornet.

throttle.jpg

• neil
• Oct 2, 2024

Thanks my friend....

 

[andeebee]

Great info, thanks for posting. BMW have the same reset on their throttle, I hadnt thought to try it on the TA.

Tried the TPS reset, using the method described and it did make some improvements.
Accelerating out of slow (wet) corners, where I have approached on a pretty much closed throttle at low speed, is now better. It pulls cleanly out of the corner. Previously it would buck and I would worry the suspension was moving unnecessarily as the bike bucks to and fro. In cold, icy conditions, the bike would be un-rideable.
So thats a plus. Watching the 'grip angle' numbers on the dash, the numbers now seem higher than they were previously, but that could be my imagination.
On the downside the constant throttle in low gears around 20 - 30 mph is still full of fueling problems.

 

[andeebee]

Hi Westeagle. Are you still having this problem?
I had mine looked at at my dealer. I told the service guy to ride it at a steady speed/RPM. He did admit he felt the jerkiness and entered a "Case" with Honda. Of course Honda claims they have never heard of this problem. As I mentioned in my previous post, I love the bike other than this issue. I'm not enjoying riding the bike like I should be because of this micro surging. I understand the lean fueling and all that but I can't imagine this level of surging is happening on every 2024 TransAlp.
Please let me know if you've gotten anywhere with this problem or if it is still happening.
Thanks NE Rider

Keen to hear what your dealer says. I have booked mine in for them to look at it, but they cant get me in until late October

 

[andeebee]

Keen to hear what your dealer says. I have booked mine in for them to look at it, but they cant get me in until late October

Dealer has now gone bust(!) so nearest dealer is 40 miles away. Great.
Been thinking about this fueling issue a bit and would be interested if those who 'dont notice it' have the quickshifter fitted? Mine is without the QS.
Problem at its worst between 20 - 30 mph in 2nd or 3rd gear following other traffic on a steady throttle. Absolutely terrible, stressful and not a nice place to be.
If you pull the clutch in at that speed the problem goes away as the engine is no longer tugging at you.
As others have said the 'mode' has no effect. Im hoping this is a defective sensor or loose connector.
If this is a Euro 5 symptom, then the bike will be getting re-mapped or sold.

 

[Gmiller5m]

Dealer has now gone bust(!) so nearest dealer is 40 miles away. Great.
Been thinking about this fueling issue a bit and would be interested if those who 'dont notice it' have the quickshifter fitted? Mine is without the QS.
Problem at its worst between 20 - 30 mph in 2nd or 3rd gear following other traffic on a steady throttle. Absolutely terrible, stressful and not a nice place to be.
If you pull the clutch in at that speed the problem goes away as the engine is no longer tugging at you.
As others have said the 'mode' has no effect. Im hoping this is a defective sensor or loose connector.
If this is a Euro 5 symptom, then the bike will be getting re-mapped or sold.

Can you say what your throttle angle is when the surging happens in each/either gear between 20-30 mph? I have some time this weekend and would like to try to reproduce. Oh, and do you drag the rear brake at all?

 

[craigsad77]

The Microsurging used to really bother me when I first bought the bike but I am getting used to it now. I have bought an aftermarket clutch lever and I do feather the clutch when in second gear at constant speed, which masks the issue. On the plus side, the lean fuelling means I get great fuel consumption when I'm not heavy on the throttle and its almost impossible to stall at low speed in second gear.
I might try a tuner/ remapper in the future but any modifications nails you on insurance in the UK. I have a quick-shifter and it makes no difference..

 

[Torsion bar]

I had a similar surging issue on my bike. it almost disappeared after I had the ECU flashed at 2 Wheel Dynoworks here in Seattle. The new fueling schedule is richer at the lower RPM‘s - throttle angles.

 

[andeebee]

Can you say what your throttle angle is when the surging happens in each/either gear between 20-30 mph? I have some time this weekend and would like to try to reproduce. Oh, and do you drag the rear brake at all?

I appreciate you trying. Third gear, throttle position 2/3 . Basically any time following damn cars. I guess because it's a 750 you can achieve 30 mph with hardly any throttle. Or coming off a duel carriageway and onto a slower road the jerking will start

 

[andeebee]

Can you say what your throttle angle is when the surging happens in each/either gear between 20-30 mph? I have some time this weekend and would like to try to reproduce. Oh, and do you drag the rear brake at all?

Very low numbers on the throttle angle - around 3 to 5 in third gear, constant throttle

 

[andeebee]

I had a similar surging issue on my bike. it almost disappeared after I had the ECU flashed at 2 Wheel Dynoworks here in Seattle. The new fueling schedule is richer at the lower RPM‘s - throttle angles.

We seem to be low on ECU flashing businesses here (UK), but have seen the great effects it has. Shame you have to budget to spend more money undoing the terrible/emission compliant OE ECU work

 

[Gmiller5m]

Very low numbers on the throttle angle - around 3 to 5 in third gear, constant throttle

I have been riding around the past couple of weeks trying to reproduce the herky jerky throttle without luck. I can apply 2, 3, or 4 degrees of grip angle, in second or third gear, between 20 to 30 mph without any drama. I wish you could take a spin on my bike to see if it's the same. We do have different riding styles as I had to make a conscious effort to not clutch or drag the rear brake when trying to reproduce this in heavy traffic.

Probably unrelated, but when I got the bike last April, I didn't like the throttle dead space. The couple of mm in throttle play before you have spring resistance in the throttle when starting to twist the grip. So I added a couple of throttle grip spacers which completely removed all free play from the throttle grip. My grip is now immediately working against the spring tension instead of 1 or 2 mm of free play and then the throttle spring resistance. But I think this is different because at 2 to 4 degrees of throttle angle, you are already working against the throttle spring ever so slightly.

 

[andeebee]

I have been riding around the past couple of weeks trying to reproduce the herky jerky throttle without luck. I can apply 2, 3, or 4 degrees of grip angle, in second or third gear, between 20 to 30 mph without any drama. I wish you could take a spin on my bike to see if it's the same. We do have different riding styles as I had to make a conscious effort to not clutch or drag the rear brake when trying to reproduce this in heavy traffic.

Probably unrelated, but when I got the bike last April, I didn't like the throttle dead space. The couple of mm in throttle play before you have spring resistance in the throttle when starting to twist the grip. So I added a couple of throttle grip spacers which completely removed all free play from the throttle grip. My grip is now immediately working against the spring tension instead of 1 or 2 mm of free play and then the throttle spring resistance. But I think this is different because at 2 to 4 degrees of throttle angle, you are already working against the throttle spring ever so slightly.

Good work, thanks for taking the time to troubleshoot this scenario. Now Im even more convinced this is a defect
I had considered the throttle free play, as I have a small amount of movement in the grip, but it doesnt feel excessive and is probably factory.