Speed Restriction Issues

[youngbucker]

Hi guys, I’m having an issue where my Ruckus is pulling back (almost like break checking) on it’s own at 32 MPH on flat and 36 MPH downhill. Does anybody have ideas as to why?

I’ve done the following to try to address the issue:
-Checked to make sure the airbox is set in place
-Added the rolling wrench EVI performance CDI/ coil thinking it was the restrictor (now I don’t think I’m hitting the rev limit for this to even kick in)
-I added sliders in the CVT thinking I wasn’t getting the max potential out of it
-Swapped the spark for an iridium
-Swapped out the fuel filter and fuel pump
- swapped the fuel like coming off the pump as it had some cracks
- Reset the ECM data
-Changed the oil/ cleaned the oil filter
- Changed the coolant/ cleaned the radiator

The bikes idle was consistent before adding the EVI. It now fluctuates when cold and will stabilize a bit once it’s been ridden a few minutes.

Next on the list is to check the carb. Any suggestions as to what my problem is?

I have a tach and I can record RPMs if it’ll help. Any suggestions are appreciated.

[scotti]

I’m having same issue but at 38 mph. My bike used to easily hit 43 downhill but now out of nowhere the bike checks at 38 and will actually slow down to not exceed that mph. I don’t get it

[Baizy]

Mar 4, 2021 17:23:43 GMT -5 scotti said:

I’m having same issue but at 38 mph. My bike used to easily hit 43 downhill but now out of nowhere the bike checks at 38 and will actually slow down to not exceed that mph. I don’t get it

Hey Scotti, it likely just comes down to a worn CVT belt. As they wear out they get thinner which lowers your top speed in a restricted rev situation. Try swapping your belt for a new one!

Alternatively you could have developed flat spots in your variator weights, that would keep the driven face from moving out as far as it previously could. Another cheap maintenance item that could be lowering your top speed.

Hope this helps you get those MPH back!