Lurching/Missing at about 60mph - Victory Forums - Victory Motorcycle Forum
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post #1 of 31 (permalink) Old 08-24-2011, 11:18 AM Thread Starter
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Default Lurching/Missing at about 60mph

Hey gents...

I've got an 01 V92C Deluxe that I purchased used about a month or so ago.

I took off on what was supposed to be a 1200+ mile trip last weekend, but it ended after 10 miles. Dealer told me the regulator went titts up.

I had noticed before this that occasionally, the bike would lurch a little bit...almost like it didn't get gas for a split second. But I only notice it after I get up to about 60 mph. I assumed this was also electrical and that it would disappear once they replaced the faulty regulator.

No dice.

I they called me to tell me the bike was fixed. I went to pick it up and returned it about 10 minutes later telling them that it was still lurching....stalling once I had it cruising at about 60mph for a few minutes.

They rode the bike again, this time noticing what I was noticing...but they can't figure it out. They're still diagnosing...

All the recall work has been done on the bike, according to their records.

Anyone seen this strange behavior before on the old v92's?

Thx...

2013 Cross Country (Houston/Katy Texas)

People think I am too patronizing. (That means I treat them as if they're stupid.)
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post #2 of 31 (permalink) Old 08-24-2011, 04:02 PM
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Default re: Lurching/Missing at about 60mph

Throttle Position Sensor (TPS), most likely; a very common failing of these bikes over time. It's simply a variable resistor, and the internal resistive coating wears away at a range of travel where the wiper spends most of its time; this usually is where the throttle is at 60-65 mph. Replace that & recalibrate the fuel injection and the hesitation / cutting out will go away.

If the dealer isn't familiar with this idiosyncrasy, they'll burn hours of diagnostic time - have them replace it on general principles and be done with it.

It's a common item; if the dealer doesn't have one, just about any auto parts store should have it on the shelf. (FWIW, many of the V92C components are sourced from auto or industrial sources, right off the shelf - wheel bearings, injectors & injector o-rings, TPS, and ignition coils all come to mind.)
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post #3 of 31 (permalink) Old 08-24-2011, 05:15 PM Thread Starter
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Interesting.

I called them just now to discuss. They actually claimed to just that minute be discussing this possibly being the solution. But they were still happy to have the help.

Seriously...I appreciate your help here. I'll let you know how we end up!

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post #4 of 31 (permalink) Old 08-25-2011, 02:03 PM Thread Starter
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Heard back from the dealer today. They ARE seeing some odd readings on that TPS.

But the problem, as they report it, is that Polaris no longer sells just the TPS. It comes with the throttle body...and they want near $400 for it.

So, I'm looking on line to see if I can source this part myself...but I'm a total idiot when it comes to this stuff. Though, it looks like I'm gonna be forced to learn if I don't want to go broke getting this bike on the road.

I don't suppose someone could spoon feed me a link to source the correct TPS?

Thanks again....

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People think I am too patronizing. (That means I treat them as if they're stupid.)
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post #5 of 31 (permalink) Old 08-25-2011, 05:06 PM Thread Starter
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A little more searching, I'm sure I found the TPS Sensor for 2001 V92C at Napa, part no. 2-19187

Anyone care to confirm I'm looking at the right one?

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post #6 of 31 (permalink) Old 08-26-2011, 02:46 PM
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I'm using a Niehoff FE4038 on my '99 V92C - the parts store should be able to cross-reference that. Should run about $30 or so.

'99 V92C with K&N, PMRT chip, Vic stage 1 slipons, and engine by Rylan Vos!
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post #7 of 31 (permalink) Old 08-28-2011, 11:55 AM Thread Starter
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Whelp...problems solved. That NAPA TPS worked fine.

She's finally feeling really good under me. Took her out for an hour-long ride in the 106 degree heat yesterday after the TPS was dropped in. Everything felt brand new...no cutting out, no attempted stalling, no dead spots in the throttle.

Now...if we could just get back in the 90's here, I'd be a happy camper.

Thanks for you help...appreciated SO MUCH!

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post #8 of 31 (permalink) Old 08-29-2011, 05:04 PM
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Glad to hear it! That's one of those niggling things that happen which can take a lot of diagnostic time if the mechanic isn't aware of it as being a common issue to the early bikes...

One of the nice benefits of the Vic community (here & on other sites) is the ability to share and learn from the experiences of many others... The synergy from accumulated knowledge and experiences of many other Vic owners is quite valuable.

It is quite a change when you put in the new TPS - almost feels like a new bike, doesn't it?

'99 V92C with K&N, PMRT chip, Vic stage 1 slipons, and engine by Rylan Vos!
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post #9 of 31 (permalink) Old 08-30-2011, 06:05 AM Thread Starter
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True...I'm new around here, but already very happy about the wealth of info shared here.

I really didn't want to overstate the difference in the bike after the TPS was replaced, but there really were a handful of other things I couldn't put my finger on...where the bike felt "funny".

All of those were gone, and obviously so during the first few seconds as I pulled out onto the road from the dealer. Throttle roll off was a big one that was much smoother in the ride. Slow rolling in first at idle was more intuitive. I still can't even begin to explain the differences. Just smoother all over. It was nice to finally garage the thing knowing it was running just as good an hour later as it was when I started it. That's a first for this bike. I bought it used from an individual a couple of months ago, and it has had small issues from the beginning...which were turning into bigger issues. It looks like we've got it all figured out now. And with what I gave for it, combined with what I've put into it, I'm still in good shape. A lot of bike for the money.

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post #10 of 31 (permalink) Old 10-24-2011, 12:17 PM
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Default TPS PN# and recal question

AutoZone also has this TPS. their # is TPS140. it is mentioned in a few posts that you may need to recalibrate the throttle, how do you do this? i could not find this info anywhere.
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