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What is your rev limit?

A

astrocortex

Joined Feb 2016
123 Posts | 0+
CT
Hey all

Just got mine back from the shop again. I'm not convinced its fixed. One of the things I am confused about is my bike is rev limiting at around 8250-8500. My manual says 10,500.

its a 13 821 strada. What does yours go too? The tech says they limit right where mine is, but I'm not convinced.
 
astrocortex said:
Hey all

Just got mine back from the shop again. I'm not convinced its fixed. One of the things I am confused about is my bike is rev limiting at around 8250-8500. My manual says 10,500.

its a 13 821 strada. What does yours go too? The tech says they limit right where mine is, but I'm not convinced.
Click to expand...

rev limit is 10500.

your bike seems to have some problem. when bike thinks its in neutral or thinks clutch is engaged, it limits revs earlier.
do you have aftermarket clutch lever ?
 
hello again Ferdi. I did in fact put a Pazzo clutch lever on. So I just went out and swapped it back and it still does it.

Thing is though, when I put the pazzo on, the bike wasnt recognizing the clutch being pulled in. So I pulled it apart and noticed that the little button on the switch was stuck in. So I used a pin and a little wd40 to unseat it and put it back into place which fixed my inability to start the bike. I'm wondering if the switch broke.
 
yeah so I was reading about this in another thread from ducati.ms and someone suggested trying to start the bike while its in gear without the clutch engaged. guess what happens? it jumps across my garage. Guess I broke the switch? If I jumper it as people have suggested on other forums I think it will trick the bike into thinking the clutch is engaged which will again keep my rev limit down.

Hope im right. I called ducati shop and they think I'm nuts. Which is partially true ;)
 
Sounds like you should adjust your clutch - if the bike moves its engaged.

Some bikes have adjustable rev limits - check the manual carefully and see if this one does. Might be buried in the menu.
 
My preferred clutch play setting caused a slight engagement when clutch was engaged. I could feel it when starting (slight tug in the chain) or when idling with clutch engaged. It never affected my rev limit, however. Just trouble finding neutral when cold. I also have an aftermarket lever set.

Others on this site have Pazzo levers and didn't have that issue. You must have gotten a bum set that didn't allow travel of the plunger.
 
appliance821 said:
Sounds like you should adjust your clutch - if the bike moves its engaged.

Some bikes have adjustable rev limits - check the manual carefully and see if this one does. Might be buried in the menu.
Click to expand...

If the switch were operating properly, when the lever is disengaged but the bike is in gear, it shouldn't turn over, right? The micro switch is malfunctioning.

When I first swapped in the Pazzo levers I had the opposite problem of this. The bike wouldn't turn over at all. So I pulled out the switch, used a pin and wd40 to get the little button to move freely again. Apparently it's stuck but in the opposite position now.

Does the hyperstrada have an adjustable rev limit? I can find no mention of that anywhere in the manual or online. If it does I would love to know where in the menu!
 
gatdammit said:
My preferred clutch play setting caused a slight engagement when clutch was engaged. I could feel it when starting (slight tug in the chain) or when idling with clutch engaged. It never affected my rev limit, however. Just trouble finding neutral when cold. I also have an aftermarket lever set.

Others on this site have Pazzo levers and didn't have that issue. You must have gotten a bum set that didn't allow travel of the plunger.
Click to expand...

I have not pulled it out yet, but my theory is that my micro switch is stuck engaged. The little button is not popping back out again, basically. So according to the bikes electronics the clutch is always engaged.

I'm not sold on this yet. But when I swapped in the Ducati lever and turned the bike over with a disengaged clutch, I knew something was wrong. Regardless of if it fixes the rev limit, it's still malfunctioning. The only connection to rev limit that I can find online is in forums. Nothing in the manuals anywhere and the Ducati tech says I'm wrong. I have found numerous other examples of people with the same problem on forums though and that switch or the one it connects to on the back right side of the motor seem to be mentioned every time.

It's worth a shot. If I can get it to work even just for a few minutes I can test the rev limit with a quick shot out of my driveway. Headed out to try in a few!
 
Well, the switch seems totally fine. Now I'm once again lost. Unless the switch is malfunctioning internally...

Where else would the bike be tricked into thinking the clutch is engaged? I even loosened the clutch cable as far as I could to make sure it wasn't slightly engaged. Changed nothing, it'll still try to start in gear
 
Did you change the front sprocket on your bike by any chance? Since I switched to a 14t front sprocket on mine I'm also seeing the rev limiter kick in around 8500. I'm not a mechanic, but I think that's kind of expected when shortening the gears? Correct me if I'm wrong.
 
01101101 said:
Did you change the front sprocket on your bike by any chance? Since I switched to a 14t front sprocket on mine I'm also seeing the rev limiter kick in around 8500. I'm not a mechanic, but I think that's kind of expected when shortening the gears? Correct me if I'm wrong.
Click to expand...
Revs are revs - shouldn't have anything to do with sprockets.
 
I recently replaced my clutch lever with a CRG lever and perch. To do this I had to remove the clutch switch. Instead of totally removing it. I just let it hang and went for a ride to understand what the effect was. I was seeing the rev limiter come in at 8500, just like you are describing.

It would also still start in gear (with clutch pulled in) which made me realize that I had my understanding of the switch position reversed. I put a zip tie on it to hold the plunger down. The result was I got my 10,500 rpm rev limit back, but the bike will NOT start when in gear.

So yeah, your clutch switch needs to be DEPRESSED. If your bike starts in gear and the rev limit is 8500, your bike thinks the clutch is engaged (lever pulled in) all the time.

I've read about having to shim the switch with the pazzo levers, but you should do your own research on that. The way you described your switch sticking, that could also be the issue.

Sent from my SM-G935V using Tapatalk
 
Now mine is doing this -_- All I have done to it is 14T front sprocket, and the bike has been sitting for the past 2 months.

I got a rev limit at 8000 a few times... not every time. Was yours every single time? It could be my clutch switch corroded or something.
 
I got it every single time at 8250ish. All I did was zip tie that micro switch and it hasn't happened since. I have the micro switch here to replace it but just havent gotten around to it yet. Mostly because i'm unsure where it actually connects.

I read on a few forums that the wiring for the switch going into the back of the motor - right side near the exhaust its a grey cover, right out in the open, had gone and caused the same problem. To me it would seem it was electrical rather than mechanical, right? Hard to imagine mechanical limiting it.

I'm so new to these bikes that I highly recommend taking what I say with a grain of salt!
 
astrocortex said:
I got it every single time at 8250ish. All I did was zip tie that micro switch and it hasn't happened since. I have the micro switch here to replace it but just havent gotten around to it yet. Mostly because i'm unsure where it actually connects.

I read on a few forums that the wiring for the switch going into the back of the motor - right side near the exhaust its a grey cover, right out in the open, had gone and caused the same problem. To me it would seem it was electrical rather than mechanical, right? Hard to imagine mechanical limiting it.

I'm so new to these bikes that I highly recommend taking what I say with a grain of salt!
Click to expand...

Mine was only happening in 2nd gear. I swapped back to the 15T sprocket, and it's running fine now... Clutch, neutral, and kickstand switches all tested functional.
 

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