DT125R ARCHIVE

Members Login
Username 
 
Password 
    Remember Me  
DT125R Forum -> POWERVALVES -> Powervavle servo
Post Info TOPIC: Powervavle servo
Victor


Guru

Status: Offline
Posts: 804
Date:
Powervavle servo
Permalink  
 

I guess this is normal cry



-- Edited by Victor on Thursday 6th of March 2014 09:19:59 PM



-- Edited by Victor on Thursday 6th of March 2014 10:35:49 PM



-- Edited by Victor on Friday 7th of March 2014 11:38:17 AM

__________________
NEV


Guru

Status: Offline
Posts: 2515
Date:
RE: Powervavle collar help
Permalink  
 

Gently tap a wooden doweling, or 6" bit of broom handle from the other side, the oil seal that's on this side can stick a bit if it's been in a while, you'll probably find it's caked with oil and grime.

__________________

 
Victor


Guru

Status: Offline
Posts: 804
Date:
Permalink  
 

Ok thanks, will go give a tap now

Edit: Thanks came out with a few bangs, putting these on now biggrin



-- Edited by Victor on Thursday 6th of March 2014 04:16:32 PM

__________________
NEV


Guru

Status: Offline
Posts: 2515
Date:
Permalink  
 

careful with the one or two little metal connection doweling that may be in the middle, take them out first, you don't want them falling into your crank.

__________________

 
Victor


Guru

Status: Offline
Posts: 804
Date:
Permalink  
 

Should i put the head on before i put the cyclinder back on the bike?

__________________
NEV


Guru

Status: Offline
Posts: 2515
Date:
Permalink  
 

6 of one and half dozen of the other Vic, whichever you find easiest to manage, just remember that there is a right and a wrong way as to the way gasket goes on, you should be able to read the 'UP' tag from above, and remember you need to torque the head nuts down too.

__________________

 
ezegreenfingers


Guru

Status: Offline
Posts: 690
Date:
Permalink  
 

Yummy that barrel and head look nice and clean gona look nice mate

__________________

Victor


Guru

Status: Offline
Posts: 804
Date:
Permalink  
 

thanks again nev

thanks eze, just broke the connector off the temp sensor win!!!

will i be ok without for a while?

__________________
NEV


Guru

Status: Offline
Posts: 2515
Date:
Permalink  
 

If you're going to struggle to get one Vic, pm Deeteemx, he usually has some knocking about.

__________________

 
Victor


Guru

Status: Offline
Posts: 804
Date:
Permalink  
 

The Powervavle is turning the wrong way now towards the piston when i rev it

I didn't disconnect the cable from the housing just took it straight off so it can't be the cables

It's the 5 wire servo can't really be plugged in wrong so that's ruled out what can it be?

__________________
AndyYam


Guru

Status: Offline
Posts: 1017
Date:
RE: Powervavle servo help
Permalink  
 

Victor wrote:

Should i put the head on before i put the cyclinder back on the bike?

 Personally I wouldnt fit a cylinder head to a barrel thats not on an engine at least. You'll need the cylinder to be held still enough to torque up the head nuts ( 3 stages is best). You'll also have more room to get the cylinder over the piston and slide it down without catching a ring, if you have no head on the top. Another advantage is that with the head off  (once the cylinder is in place) you can still lube the bore with a little more 2 stroke oil that might have been wiped away accidently whilst you have been fitting the cylinder.



__________________
AndyYam


Guru

Status: Offline
Posts: 1017
Date:
Permalink  
 

With regards to the powervalve video. Thats very strange. What revs is it starting to move at? It shouldnt start opening until around 6krpm. Sounds like its open ( the wrong way) long before that.

I dont think it can be, but is the servo motor the right way round? If it was turned the other way round then that would give the same effect as the cables being crossed. Does it do its set up cycle when you turn the ignition on still?

__________________
AndyYam


Guru

Status: Offline
Posts: 1017
Date:
Permalink  
 

www.youtube.com/watch

Had a look through a number of videos on youtube and looks like at idle it is not fully closed. Then as the revs increase above idle it closes fully and then only once the revs increase to the point where it is needed ( 6krpm i believe) it starts to open. You'll need to give it a good rev to see if it starts to open again.

__________________
Victor


Guru

Status: Offline
Posts: 804
Date:
Powervavle servo
Permalink  
 

Thanks for reply's Andy, it does the clean cycle normal (clockwise to 3 o clock then back to 12)
 

I guess this is normal



-- Edited by Victor on Friday 7th of March 2014 11:40:43 AM

__________________
AndyYam


Guru

Status: Offline
Posts: 1017
Date:
Permalink  
 

Yeah seems to be. Once you can rev it up a bit you will probably start to see it opening again.

__________________
MDK


DTR Legend

Status: Offline
Posts: 1690
Date:
Permalink  
 

some other pv videos

 

 

 



__________________

DTR125CO-1.jpg


de restrictions

good clean up of a old batterd  dtr  95

 
AndyYam


Guru

Status: Offline
Posts: 1017
Date:
Permalink  
 

2 Very different ways of operating. Strange. The early one seems to make sense to me. stays closed then starts opening at 5krpm then fully around 9-10krpm. Would love to see the 2 compared on a dyno.

__________________
Victor


Guru

Status: Offline
Posts: 804
Date:
Permalink  
 

got 75 miles down today thinking about just pinning it after 100

__________________
AndyYam


Guru

Status: Offline
Posts: 1017
Date:
Permalink  
 

Why?

__________________
Victor


Guru

Status: Offline
Posts: 804
Date:
Permalink  
 

AndyYam wrote:

Why?

 Cause i wanted to hit my local track, and i think 100 miles has to be enough to run a piston in tbh

I did it anyway, took her to the redline today and gave her a trashing she was fine. Broke a chain with all the power

p.s i didn't mean the powervavle i was talking about the throttle

Did the powervavle mod myself so no worries there took close to 1mm off and it's a 57m bore now 



-- Edited by Victor on Sunday 9th of March 2014 08:40:15 PM

__________________
AndyYam


Guru

Status: Offline
Posts: 1017
Date:
Permalink  
 

Ah lol. Thought you meant you were gonna pin the valve.

__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
DT125R Forum -> POWERVALVES -> Powervavle servo
Tweet this page Post to Digg Post to Del.icio.us


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard