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Suspected VSS Incident

wifesRT

New member
Let me start with two things; Number 1 I apologize for a long post up front. Number 2 I don't ride a Spyder...my wife does.

She put 80,000+ miles on a 2014 RTL and replaced it with a 2018 RTL when the engine blew on the 14. As her designated mechanic and general honey do guy, I am generally tasked with figuring out what is wrong with her ride. I build custom bikes in my spare time and have been turning wrenches for over 35 years but the Spyder has been a steep learning curve for me. Now to my problem...

A few days ago we made an Ironbutt run (1,500 miles in 24 hours) and the wife had an issue with the new RTL. The bike has about 4,700 miles on it at this point and is still running the stock factory setup and rubber. The situation was as follows...first incident: we were pulling onto I-10 in Ozona, Tx in the wee hours of the morning. The weather was turning nasty and temperature was in the low 60's (F) and we were riding in a wet fog...you know the one where if you travel more than 20 mph you need windshield wipers. It wasn't raining per se, but the road was definitely wet. In addition, the entrance ramp was relatively steep and she broke traction on the rear and had to nurse the Spyder up onto the interstate. Once on the interstate she had to reduce her speed significantly (~ 45-50 mph) to keep from sliding around. Second incident: we were riding along on the interstate east of San Antonio, Tx, similar weather but the roads are relatively flat she is on the cruise control at highway speed and suddenly the bike kicks off the cruise control and starts fishtailing aggressively. Her words..."it was like the bike was throwing me side to side". She pulled over to the shoulder, we checked out the bike (no codes or idiot lights displayed and no apparent damage or obvious problems) and then we continued on our way. She rode cautiously and the roads started drying up. No further problems for the rest of the ride. 60 or so miles after the second incident we made our final fuel stop of the trip and I noticed a strong burnt rubber smell coming from her bike that seemed to come from the right side immediately behind the front tire.

A few more details:
1.) No warning lights were noticed during either of these instances. That doesn't necessarily mean that they weren't there, just that she has no recollection of seeing them. I have drilled into her head over the years that in any emergency situation she should focus on riding the bike to the exclusion of all else...and that's exactly what she did.
2.) As previously stated, the bike is still mostly stock. I have added a few things like Tri-Axis bars, a Rowe Electronics power distribution module to run the accessories, GPS, USB charger, accent lights,etc, but the running gear is all stock including the tires.
3.) The bike was checked out before and after the ride and all tires were at manufacturers recommended inflation of 20 psi front and 28 psi rear and there was no apparent damage to the bike.
4.) No major service had been done immediately prior to this ride...I don't trust dealers much further than I can throw the building they reside in and certainly not with my wife's life.

Based on what I've read here and her previous experience with the '14, what I suspect happened is that she was having traction issues due to the wet conditions and the VSS kicked in making things worse instead of better. The one confusing thing is the burnt rubber smell. It was like someone had just done a burnout right beside her bike. No smoke, no visible damage (that I could see), but a strong smell.

What I think we need to do, based on what I've read here, is change the rubber to car tires, install a Baja Ron sway bar and upgrade the suspension. She is an accomplished rider who holds more Ironbutt certifications than I do so correcting this problem is not an option...she puts too many miles on her ride to tell her she can only ride on dry pavement...she would stab me in my sleep.

If you have any thoughts on what happened or how to correct it I would greatly appreciate your input. Thanks in advance.
 
:congrats: On the Iron butt ride!! My wild guess and what I would look at would be if a brake caliber was sticking a little. Make sure she is not covering the brake. Sounds like a little drag that might make the vss kick in in wet conditions and make the wheel hot to give a burning rubber smell. again just a wild guess, it could be nothing.
 
CopperSpyder...Thanks. I thought about the same. Checked all three wheels at the final fuel stop the redneck way (touching them) and none were overly warm. Of course we had traveled a few miles since the incident so the brakes would have had time to cool off so...maybe. I doubt she was covering the brake tho...she has thousands of miles on a Spyder and knows better...still I will ask her. With regard to the Ironbutt...yeah we ride them periodically and some long rides that we dream up. We did a Veterans charity ride a couple of years ago that we dreamed up...we hit 50 veteran memorial sites in all 48 states and DC...in 14 days...11,600 miles in 14 days. It was grueling but we raised $16,000 for a couple of Vet causes so well worth the effort.
 
I have " fishtailed " slightly in the wet ..... however the VSS / ABS pretty quickly and gave me almost instant control ..... keep us posted ...... Mike :ohyea:
 
wifesRT, I'd suggest that the VSS probably saved your Wife from things getting MUCH WORSE very quickly!! :shocked:

The VSS on our Spyders is well up there with the best (if not actually being one of THE best! :ohyea: ) and if she managed to regain control and continue on without damage or injury, that was almost certainly BECAUSE the VSS worked exactly as it has been designed to work!! :2thumbs: If it hadn't done its thing properly who knows what would've resulted?! :dontknow:

I reckon that what you've described sounds like the VSS detected & responded to changes in &/or differences between the rotational speeds detected by each of the 3 wheel speed sensors! This would've been due at least partially to the wet road surface, altho standing &/or running water over that surface could've made it worse, and, especially for the 'on cruise' incident on the highway, there could've been some rubber or other debris of some sort that one or more wheel/s hit, maybe even picked up & jammed somewhere, making that smell you detected.... regardless, even just gentle accelleration uphill on a wet surface can easily make that wide rear tire break loose & spin, triggering a VSS response if it goes on for long enough/at a high enough speed, and that is further likely if you have anything more than a couple of degrees of steering dialed in.... Same on the Highway - wet roads, big wide rear tire (btw, tires that are renowned for suffering from rapid tread wear in the centre & for sometimes being out of round, or developing abnormal tread wear patterns, or flat spots, or belt delamination, or.... :sour: you get the picture!) and fronts that, while some might last reasonably well given careful use, are quite simply not recognised by anyone in the business as being the greatest handling &/or traction tires around, plus having the potential for all of those previously mentioned issues and also the possibility of the very common wheel alignment failures (formerly? Possibly not quite so much recently, but still often enough to be of concern & possibly a factor here! :lecturef_smilie: ) adding to steering &/or wheel rotational speed mismatches.... :dontknow:

My first thoughts are as mentioned, that I'd be strongly going with the VSS doing its thing admirably and stepping in as & when necessary to retain/regain control for your Wife & helping to prevent something waaay more catastrophic!! Even if she didn't see one/any of the VSS/Stability/ABS etc lights flash on - that's not surprising tho, given the speed at which it all sounds to have happened & the fact that those lights only come on when the Nanny/VSS is actually doing something, so during each of those incidents one or more lights may've flashed on & off frequently but very likely only for a fraction of a second each time.... and given everything else that was going on at the time, it's not hard to think your Wife may've just missed that! Heck, even when I'm out on the skid pan & very carefully WATCHING & CONCENTRATING HARD to see if/when one of the Nanny's lights come on, more often than not I miss the first & sometimes the second or subsequent flashes!! They can be very quick, and they aren't the brightest of lights either!! :sour:

However, exactly why all this happened is probably a combination of things, certainly the weather & road conditions played a big part, and not the least of the other contributors would've been the tires &/or their pressures.... :sour: Since your Wife's Spyder is still running the OE Spec Kendas and now has about 4700 miles on them, those tires are well within the zone for either rapid tire wear (rear tire especially) &/or for poor construction quality issues to show up, and the OE Spec Kendas are renowned for both!! If it was my Wife's Spyder, I'd be throwing the original tires on the scrap heap IMMEDIATELY & fitting a quality car tire alternative in a similar size (but not necessarily exactly the same size!) and then running them at a (lower) pressure more in line with the much lighter load the Spyder imposes on them with regard to their usual & their maximum carrying capacity - pressures which for most Spyders & Ryders, generally works out to be something in the ranges of 14-18psi up front & 16-20psi on the rear! I'd follow that up at the earliest opportunity with a front end suspension & steering gear check and a proper wheel alignment done by a known and recognised as being highly competent & skilled wheel alignment operator.... not just an alignment done by your local dealer who said 'yeah, we do those alignment things' on an every once in a blue moon while basis, maybe, by a scarcely trained just off the streets bloke! :shocked:

Fitting a set of good tires and getting a 'proper' wheel alignment generally tends to reduce if not completely remove all these 'unexplained VSS activations'! Try it, I don't know of anyone who's made the change/upgrade & regretted it! :ohyea: Over to you! :thumbup:

:cheers:
 
Vss

Peter I have found that the VSS engagement is often on a " micro-second " basis ..... the Spyder oversteps it's set boundaries .... bang, the VSS kicks in for a micro -second and then removes itself from it's job - also in a micro-second .... most folks ( like me ) don't drive looking at the instrument panel. ... so it's real easy to miss seeing the ICON flash ( for a micro-second )....... When I'm in the " twisties " ( where it's likely for the VSS to intervene ) I'm more aware of whether or not the VSS is going to kick in or not .... I have learned to " FEEL " it rather than look for the ICON ..... jmho ..... PS excellent explanation ..... Mike :ohyea:
 
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Gentlemen...thanks for your input and advice, it is much appreciated. I think we have settled on the following:

1.) Replace the rear tire with a General Altimax RT43 215/60R15 and the front tires with Vredestein Quatrac 5 165/60R15
2.) Get laser alignment
3.) Replace the OEM sway bar with Baja Ron Sway Bar
4.) Replace the front shocks with Elka Stage 2 Shocks
5.) Possibly replace the rear with Elka Stage 2 shock

Since I don't have an infinite motorcycle fund this will happen in stages in the order above unless someone sees benefit to rearranging the steps. Once again, thanks for all of the information.
 
I know you guys are leaning towards tires, and it is probably the case here, but what happens when one of the wheel senders go bad and thinks its spinning? Will it throw a code and tell you, you have a problem with the system? How will it reacted? Just a thought!!
 
Even if it's not the specific problem....Replace the rear tire with a Vredestein Quatrac 5, better ride and handling.....ask Mike about sizes
 
Even if it's not the specific problem....Replace the rear tire with a Vredestein Quatrac 5, better ride and handling.....ask Mike about sizes

Mike here . Vredestein Q-5 did come in the 215/60-15 size but it has been dis-continued ...... But either the 205/60 or 205/65 is still available and both will fit fine ..... three sellers have them ( could be more tho ) Tirerack.com ..... Simple tire ...... & Vulcan tire ..... Mike :ohyea:
 
Mike you should ether become a tire salesman or a partner at BRP and change there ideas about using car tires on there trikes, so it wasn't such a pita to change tires!!:ohyea:
 
I know you guys are leaning towards tires, and it is probably the case here, but what happens when one of the wheel senders go bad and thinks its spinning? Will it throw a code and tell you, you have a problem with the system? How will it reacted? Just a thought!!

Good question, as this ^^ does occasionally (rarely?) happen, but Limp Mode usually follows VERY quickly thereafter! :shocked: I can't recall the codes or other messages that come along with Limp Mode, but they're really just diagnostic aids to help you identify a problem which might not be obvious - only Limp Mode is pretty obvious, even if the 'why?' bit isn't quite so easy to find! :gaah:

And if you purposefully disable one or more sensor/s &/or speed reading/s in order to try & test something (on a skid pan or maybe just to put your Spyder on a Dyno with the front senders disconnected... ;) ) the Nanny steps in PDQ & tells you in no uncertain terms that it's unsafe to ryde like that & dumps you into Limp Mode.... :lecturef_smilie:

Mud over any wheel speed sensor face; mud or other light debris blocking the notched speed wheel; sensor cables pulled out/disconnected; sensor cables kinked &/or stretched & broken when the brake caliper was taken off; and a raft of other things besides..... basically any interference with any of the wheel speed sensors &/or their cabling means that you aren't going to be ryding normally anyway - cos the Nanny will jump right on any of that stuff & immediately trigger at least some level of Limp Mode restriction. :banghead: But she's really only trying to keep you safe! :2thumbs:

So the fact that wifesRT's Wife could keep on ryding on after each of these incidents suggests that it wasn't just a sensor failure &/or a momentary sensor disruption, but more likely something resulting from one or more of the Spyder's wheels rotating at a different speed to any of the others! Hence the 'suspicions' re her tires.... :thumbup:
 
Mike you should ether become a tire salesman or a partner at BRP and change there ideas about using car tires on there trikes, so it wasn't such a pita to change tires!!:ohyea:

" tire salesman " :roflblack::roflblack::roflblack: Not a chance ..... and yes the tire question thing comes even more than the " OIL " thing ..... But remember the forum gains new members probably every day ..... I feel getting good info out there for them is the right thing to do.... about 50 or so folks here have gone the Q-5 route and everybody except one have said they loved them .... The person who didn't like them said they didn't fit His Spyder ..... well that same size fit everyone else's, so I'm guessing He was wrong or the person who mounted and put them on didn't know what they were doing ..... Mike :ohyea:
 
Never use cruise in adverse conditions

:hun: This one always astounds me. :dontknow: Maybe it was applicable in the past when all we had was 'throttle lock' type cruise controls, which are now considered ancient technology, and cruise control wasn't just a small part of a whole suite of integrated safety aids & applications that are pretty much State of the Art INTEGRATED SAFETY SYSTEMS, but that's not how the modern Cruise Control or the Integrated Safety Systems on our Spyders work?! Your Cruise Control is not going to spin up a drive tire or make any tire any more likely to aquaplane than it is with only your hand controlling the throttle - in fact, it's LESS likely to do that because it's generally steadier, AND even if something like that does happen, the Nanny will react to cut cruise far quicker than you can respond to back off the throttle manually! :lecturef_smilie:

Using modern Cruise Control (like that on our Spyders) in any CRUISING condition isn't a bad thing per se (ie, ryding along at a steady pace in whatever conditions) simply because it's just ONE part of that suite of Integrated Safety Systems - cruise control doesn't work alone!! :shocked: As you're ryding along and using either the throttle or cruise control to try & maintain a steady speed, the whole VSS/Nanny & its entire suite of sensors & systems is there to work FOR you at making your ryde safer! :lecturef_smilie: If the Nanny responds to anything adverse, and she WILL do that FAAAR Quicker than you can; the VERY FIRST THING she does (in milli-seconds) when any of the myriad of sensors reports an issue (in milli-seconds) is cut the throttle/cruise & reduce power, and she does that MUCH quicker than you can even think about backing off on the throttle too! So why would you NOT use a Safety Aid that can keep a steady throttle better than you; react far quicker than you to any issues/changes; cut power &/or apply one or more wheel brakes far quicker than you can; and basically WORK FOR YOU TO MAKE YOUR RYDE SAFER?? :dontknow: :gaah:

Do you pull the fuse on your car's ABS every time it rains or you drive on a dirt road? Do you pull the fuse on the air-bag if you're only going to drive on the Freeway? Do you use cruise control in fine conditions where ALL it's doing is maintaining a steady speed?? Or do you use your Cruise Control as just ONE integrated part of that State of the Art suite of Safety Systems that is widely recognised as being one of the best there is, and that has components which have been very carefully designed and calibrated to work TOGETHER to keep you safe? :dontknow: Dunno about you, but I know what I do! :thumbup:

Sure, if you are changing speed ALL the time, you might not want to select cruise; but if you are travelling along at a steady speed for any distance of much more than a few hundred yards in ANY conditions, selecting cruise at an appropriate speed for those conditions is surely a GOOD thing to do?! :dontknow: It allows you to concentrate on being more aware of what's happening around and ahead of you without having to devote any real effort to keeping on moving at your chosen appropriate speed for the conditions! And YES, that appropriate speed you set on cruise might be a little slower than if you were concentrating solely on getting the best safe speed you could given those circumstances/conditions, and concentrating on THAT (your speed) to the exclusion of putting any more effort into watching for any variations in speed or tracking of the vehicles ahead, the road surface, the spray patterns, any standing or running water on the road, keeping an eye on the cage alongside you with the driver on his phone, watching the rear-view mirrors for the tosser coming up too fast to see you thru your spray, and all those other things that you SHOULD be considering, especially in adverse conditions! Using Cruise Control to (slightly?) reduce the amount of concentration devoted to maintaining your speed and freeing up some 'extra concentration' to put towards monitoring the potential for increased dangers all around you that is present due to the adverse conditions should be a good thing, shouldn't it?! :shocked:

Trust the Nanny a bit more! Use Cruise appropriately to help make your Ryde safer, regardless of the conditions. The Nanny WILL respond to feedback from all those sensors FAR QUICKER than you can; and to NOT use your Cruise Control in circumstances where it & the VSS/Nanny could help keep you safer simply because of some old, outdated, & possibly irrationally ingrained fears about completely different technology is pretty short-sighted in my view, and is very likely putting you and other road users around you at greater risk to boot! nojoke
 
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For the rubber smell check to make sure the drive belt isn't touching the flange on the rear sprocket. I had a burnt smell on mine after the first 400 miles and I noticed the belt was touching the rear sprocket flange with the smell towards the back. Dealer readjusted the belt and now there is plenty of clearance and the smell went away.
 
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