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Offline Oldguy

RPM 5000
« on: October 20, 2023, 06:23:44 PM »
2022 uforce 1000 ... hits the Rev limiter at 5000 .. doesn't matter if seat belt is plugged in or not ... does it in both work and normal mode ... low or high gear ... I don't know how fast it will run on road ... im more interested in low end for work and trail.
Will a ecm tune help ... any help is much appreciated.
Vietnam Combat Vet

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Offline NMKawierider

Re: RPM 5000
« Reply #1 on: October 20, 2023, 06:31:46 PM »
You can have the ECU flashed and change the limiter to anything. I was under the impression...and I might well be wrong...that the UForces had a lower limiter because they didn't want them to go as fast as the sport models because of their work-type suspension. A safety-thing.
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline Lazydayz

Re: RPM 5000
« Reply #2 on: October 20, 2023, 06:52:37 PM »
That’s a really low rpm the 22 states
Max hp is at 7000
An torque is 6200 so it should reach them in theory

Are you accidentally in diff lock ?

The seat belt switch may be shorted does the light go off on the dash

Have you changed any of the clutching ? Or added heavy tires


Another member posted this on his 22 with the same issue

“The machine has the "work" and "normal" mode.  In normal mode, the throttle is soft and it's a pretty pathetic machine.  In "work" mode I can get the speedo to 75mph, which we all know is bullshit and really about 62mph.  Machine is fine, operator was expecting too much.  I guess "work" - "normal" mode must affect ECU or clutching somehow, because it is night and day different.

The limiter is certainly there in "low", but that's fine and expected.”



I don’t have mode switches on my 21 but when you switch is it instant or does it take a min to recalibrate?
21 uforce 1000
SA doors
30” dirt commander 2.0 on itp deltas
Custom cab and box cover
Custom clutching

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Offline Oldguy

Re: RPM 5000
« Reply #3 on: October 20, 2023, 08:27:06 PM »
It does have 30x10x15 liberty tires.

RNG primary kit

Doesn't matter if belt is locked or not ... runs the same.
Is in 2 wheel drive.

If it was in deep mud ... I doubt it would have enough power to clean the tires :( ...
« Last Edit: October 20, 2023, 08:47:40 PM by Oldguy »
Vietnam Combat Vet

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Offline NMKawierider

Re: RPM 5000
« Reply #4 on: October 21, 2023, 10:01:24 AM »
It does have 30x10x15 liberty tires.

RNG primary kit

Doesn't matter if belt is locked or not ... runs the same.
Is in 2 wheel drive.

If it was in deep mud ... I doubt it would have enough power to clean the tires :( ...

Must be something wrong then. Low fuel pressure can also limit power and RPM and will do so no matter what drive mode it's in. Water in the tank or the fuel filter can also cause low volume. Something to check at least.
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline Oldguy

Re: RPM 5000
« Reply #5 on: October 21, 2023, 01:46:39 PM »


Must be something wrong then. Low fuel pressure can also limit power and RPM and will do so no matter what drive mode it's in. Water in the tank or the fuel filter can also cause low volume. Something to check at least.
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Never thought about that .... it does crank right up and run the best .......when you floor it ... it runs and pulls hard right up to around 5000 rpm .... then acts like you shut it off then comes right back to rev limiter
The normal and work mode seem to work as it should ... running along in normal and switch to work mode speeds it right up and vice versa.
I'll do some more research and see if we can get it running ..Appreciate the help  8)
Vietnam Combat Vet

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Offline NMKawierider

Re: RPM 5000
« Reply #6 on: October 21, 2023, 01:54:49 PM »
That's strange. If it were a fuel problem it would get noticeably weaker the higher it goes.
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline Oldguy

Re: RPM 5000
« Reply #7 on: October 21, 2023, 05:24:53 PM »
That would be my thought also ... it almost has to be in the ecu telling it to shut down at 5000 rpm ... I sure hate it too :( ... thats when it starts pulling good.
Vietnam Combat Vet

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Offline Oldguy

Re: RPM 5000
« Reply #8 on: October 24, 2023, 08:29:13 AM »
Here is how I got rid of the rev limiter  .... works great .... I was looking for a yellow wire ... but ... if you read the comments someone ask if it's the yellow blue wire on the uforce 1000 and it is ... second row .. eighth wire in ... YELLOW with BLUE strip
 
t=477s&ab_channel=R.N.GPerformance
Vietnam Combat Vet