What does this thing do?...

Chain ChaTTer
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Chain ChaTTer
Edited Date/Time 1/14/2025 9:04am

IMG 1263 0Setting myself up for absolute disaster here 😆

But please tell me what this thing does....

New to euro 2 strokes

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soggy
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soggy 1/14/2025 9:04am
1/14/2025 9:04am

gonna need a picture or something boss.

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pummel
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pummel 1/14/2025 9:07am
1/14/2025 9:07am

Powervalve spring tension?

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XC706 1/14/2025 9:08am
1/14/2025 9:08am

Spring tension adjustment for the power valve.

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just_gonna_send_it 1/14/2025 9:09am
1/14/2025 9:09am

IIRC

Right below the pipe is the cover for the water pump.  You can take the bottom bolt out of the cover and drain alot of the anti-freeze.  Or, you can take the whole cover off and the impeller comes out.  

The cover below that is to change the spring on the power valve.  New bikes come with one or two springs.  One spring let's the power valve open quicker and the other spring lets it open slower.  

 

3

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Chain ChaTTer
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Chain ChaTTer 1/14/2025 9:11am
1/14/2025 9:11am
just_gonna_send_it wrote:
IIRCRight below the pipe is the cover for the water pump.  You can take the bottom bolt out of the cover and drain alot of the...

IIRC

Right below the pipe is the cover for the water pump.  You can take the bottom bolt out of the cover and drain alot of the anti-freeze.  Or, you can take the whole cover off and the impeller comes out.  

The cover below that is to change the spring on the power valve.  New bikes come with one or two springs.  One spring let's the power valve open quicker and the other spring lets it open slower.  

 

Thankyou.

Bike is used so no second spring but currently as it sits if I adjust this,will it adjust the way power is delivered?

1
soggy
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soggy 1/14/2025 9:14am
1/14/2025 9:14am
just_gonna_send_it wrote:
IIRCRight below the pipe is the cover for the water pump.  You can take the bottom bolt out of the cover and drain alot of the...

IIRC

Right below the pipe is the cover for the water pump.  You can take the bottom bolt out of the cover and drain alot of the anti-freeze.  Or, you can take the whole cover off and the impeller comes out.  

The cover below that is to change the spring on the power valve.  New bikes come with one or two springs.  One spring let's the power valve open quicker and the other spring lets it open slower.  

 

Chain ChaTTer wrote:

Thankyou.

Bike is used so no second spring but currently as it sits if I adjust this,will it adjust the way power is delivered?

it will adjust the timing of the power valve operation so yes to a degree.  grab a manual for the bike.

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AJ565
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AJ565 1/14/2025 10:40am
1/14/2025 10:40am

Which bike is this? On the 250’s we’ve been starting by screwing it all the way out and then back in 1 3/4 turns and adjusting from there. 

Village Idiot
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Village Idiot 1/14/2025 10:46am
1/14/2025 10:46am
AJ565 wrote:
Which bike is this? On the 250’s we’ve been starting by screwing it all the way out and then back in 1 3/4 turns and adjusting...

Which bike is this? On the 250’s we’ve been starting by screwing it all the way out and then back in 1 3/4 turns and adjusting from there. 

Seeing the white frame and pipe routing, I'm going with a Husky 125.

My crystal ball didn't give me a year. 😃

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