Monday, 22 July 2013

aprilia RS 125 RAVE POWERVALVE RS125 PV








APRILIA RS 125 POWERVALVE



                                               


                                               



--------------------------------------------------------------------------------




Rave - diagnostics flow chart




Rave II was the first generation of rotax power valve. Rave by the way stands for Rotax Automatically Variable Exhaust. The Rave II works pneumatically (by air). A drilling transfers some air from the exhaust port to a diaphragm which forms part of the pv assy. The valve blade is bolted to this rubber diaphragm, so when the exhaust gas pressure reaches a high enough level to overcome a tensioner spring acting on the back of the diaphragm, the diaphragm can inflate and in doing so it opens up the powervalve. The tensioner spring has an adjustable preload so that the rpm floor at which the spring tension is overcome can be adjusted, and hence the pv opening rpm.

The new powervalve is electronically operated by a solenoid aka. servo,motor, etc. The description Motor is incorrect, the device is a solenoid or servo this in esence a fairly powerful electro-magnet. When the servo coil is fed power it becomes a magnet which pull the iron centre in(which in turn pulls upon the cable). The new powervalve is called RAVE-E.

Rave-E and Rave II are equally likely to sieze in place. The ONLY sure way to make sure it doesn't sieze is make sure you ride with it open (a task most enjoyable). The main advantage of Rave II is that you don't need any electrical bits for it to work. Where as the RAVE-E needs an rpm sensor and control box to energize the electro-magnet coil. However the electronic type also has an advantage from a blade siezure point of view. It has a cycle at below 2500rpm where the valve is opened to assist keeping it clean.

On my rs I have the RAVE-E. It is possible to fit a RAVE II but you do have to remove a small plug from the air pressure transfer drilling.

CHECKING PV FUNCTIONING (CHEATS WAY)

One way to check the solenoid function is to put 12v accross the multiplug it connects with.


pv solenoid testing ( RAVE )

                                          




Find the solenoid and trace the two pieces of wire coming off it (electrical wire) not the pv cable. It will end in a two way multiplug which you need to pull apart, it will show two male spade clip terminals. To test it all you need to do is get two female spade clips on two pieces of wire (1.5mm square will do it), and attatch two crocodile clips to the other ends of the wire. One spade clip onto each of the spade terminals in the multiplug, one of those crocky clips on good live. The other crocky clip you can hold against the frame (making sure you have a good Earth) when you make contact with the frame it will open supply current to the solenoid. you will see it moving if all is ok. Don't worry there is no way you will get a jolt off this procedure. Its safe. Also it doesnt matter which way round the clips are connected. ie. either can be live or neutral.




=====================================================================

Aprilia RS 125 RAVE exhaust valve new RX ETX Rotax 122  - 3 years warranty !

Click here to buy now 


Product description 
  • Product: made in germany!
  • Quality control of each item !
  • Quality which stands out clearly from its competitors!
  • Exhaust valve of highest quality! That`s why we give you 3 years of warranty!

Aprilia RS 125 cord cable for exhaust valve new Rotax 122 



Click here to buy now 


Product description 
  • Product: made in germany!
  • Quality control of each item !
  • Quality which stands out clearly from its competitors!
  • Of course compatible to the original!



Aprilia RS 125 exhaust valve AS gasket/ seals spring simmer ring new RX ETX Rotax 122




Click here to buy now 



Product description 


Product: made in germany!
Quality control of each item !
Quality which stands out clearly from its competitors!
Of course compatible to the original!






======================================================================








see more Aprilia RS 125 posts here 


thanks for reading the Aprilia rs 125 owners blog  , if you would like to support us you can by  buying your Aprilia RS 125 here on ebay uk  or buying  parts for your Aprilia RS 125 parts here on Ebay UK ,  or you can buy An aprilia rs125 haynes manual off Amazon UK here or for RS 125 accessories at Amazon uk here 

BUY the ultimate Aprilia RS 125 workshop manual bundle HERE

You can also visit our sponsors website 125 sportsbikes and spares here .

Visit chinas Ebay and buy motorcycle products direct cheap and safely here 

No comments:

Post a Comment