2000 rm125 adjustable screw on head

T

t-balls

Member

Jan 27, 2003

2

0

• Nov 13, 2003

• #1

just bought it have no book on it it has a screw on left side of head with an arrow like it can be adjusted what is this?

 

J

jboomer

~SPONSOR~

Jan 5, 2002

1,420

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• Nov 13, 2003

• #2

May be so you can adjust when the powervalve opens.

 

T

t-balls

Member

Jan 27, 2003

2

0

• Nov 13, 2003

• Thread starter
• #3

and that does what?

 

E

Endless Mike

Member

Oct 30, 2003

55

0

• Nov 13, 2003

• #4

Its on the head? It might be a coolant bleeding screw

 

J

jboomer

~SPONSOR~

Jan 5, 2002

1,420

1

• Nov 14, 2003

• #5

Powervalve controls when the "powerband" kicks in, be it immediately upon rolling the throttle on (1/3 throttle turn) or later (2/3 throttle turn). It's that point at which the back wheel suddenly starts spinning, the motor sounds like it's breathing fire, your elbows pop and your head snaps back.....oh wait, you're riding a 125! ;)

This is of course speculation, be it that I have no rm125.

 

RM_guy

Moderator

Damn Yankees

LIFETIME SPONSOR

Nov 21, 2000

7,045

208

North East USA

• Nov 14, 2003

• #6

It is an adjustment for the tension for the powervalves. As you turn it clockwise it increases the tension and delays when the PV opens. Set at the stock setting and leave it there. Get the manual and it will say what is stock.