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Head Valve Spring (by Jvt)

bhek_21

bhek_21

Super Veteran
I wonder, if your set will be straght JVT.. :rolleyes:

JVT v.spring
JVT cam
JVT bore up kit with forged piston

yum! yum! :D
 
mac kevin

mac kevin

Super Veteran
huhuhuhu! my tama na stock valve ko, malalim na ang dulo... currently using cms vs.. magkano kaya set nang intake and exhaust valve..
 
bhek_21

bhek_21

Super Veteran
Benedict Hermo said:
J10 cams is 2000 pesos same as kawahara cams and the V spring is 1000 pesos if im not wrong
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thanks! yup, v.spring is around 1k., I've asked JVT about it.. but not the price of the cam.. I'll just priority for now the v.spring and also my rear shock absorber..

mac kevin said:
huhuhuhu! my tama na stock valve ko, malalim na ang dulo... currently using cms vs.. magkano kaya set nang intake and exhaust valve..
Click to expand...
How come it happen bro? What is the root of cause?
 
Benedict Hermo

Benedict Hermo

New Member
yamaha stock valve is purely not firm if you guys want to upgrade your engine just replace also your stock valve mine using faito lighten valve...
 
Cesar Ablao

Cesar Ablao

Super Veteran
mac kevin said:
huhuhuhu! my tama na stock valve ko, malalim na ang dulo... currently using cms vs.. magkano kaya set nang intake and exhaust valve..
Click to expand...
its because CMS valve spring are too stiff! thats the reason why i dont wanna use CMS valve spring. The stiffer the spring, the the more stress on the valves. So upgrade your valves too.
 
mac kevin

mac kevin

Super Veteran
yup bro, I think its the consequence of using CMS vs which is so stiff, so far i hav seen 1 intake valve only, its tip holding the bolts or lock was a little bit deep compared to others, my mech told me that I supposed to "pasubo" (i m not sure what is the exact term in english its like "hardened the tip of the valve using acetylene laser until it will turn red like ember, then immediately soak it in a cold water"... just like when forging a sword by a blacksmith, is this advisable? hmmmm... interesting.. and after u undergone this process, worries no more i think this is the bottomline, so whether its cms, yypang,tk,AP, etc valve spring, short time wear and tear can be extended to a longer time, jejeje correct me if im wrong mga masters.

pahabol: whats the best replacement for stock seat of valves (intake and exhaust)? Should I go for after market or ? and price. jejeje
 
Benedict Hermo

Benedict Hermo

New Member
mac kevin said:
yup bro, I think its the consequence of using CMS vs which is so stiff, so far i hav seen 1 intake valve only, its tip holding the bolts or lock was a little bit deep compared to others, my mech told me that I supposed to "pasubo" (i m not sure what is the exact term in english its like "hardened the tip of the valve using acetylene laser until it will turn red like ember, then immediately soak it in a cold water"... just like when forging a sword by a blacksmith, is this advisable? hmmmm... interesting.. and after u undergone this process, worries no more i think this is the bottomline, so whether its cms, yypang,tk,AP, etc valve spring, short time wear and tear can be extended to a longer time, jejeje correct me if im wrong mga masters.

pahabol: whats the best replacement for stock seat of valves (intake and exhaust)? Should I go for after market or ? and price. jejeje
Click to expand...
there have another remedy on that problem, if your mechanic is familiar the word "SHIM" design of Zuzuki valve, its look like when you are cooking a menu like TINULA then you can put an Ingredients for ADOBO its annoying but when you apply this concept in our bike you can see a best result
 
Cesar Ablao

Cesar Ablao

Super Veteran
Benedict Hermo said:
there have another remedy on that problem, if your mechanic is familiar the word "SHIM" design of Zuzuki valve, its look like when you are cooking a menu like TINULA then you can put an Ingredients for ADOBO its annoying but when you apply this concept in our bike you can see a best result
Click to expand...
our yamaha sniper valve are not shim type. suzuki raider uses cams to push the valves thats why it uses shims. sniper on the other hand uses rocker arm and valve adjuster to push the valves.
 
Cesar Ablao

Cesar Ablao

Super Veteran
mac kevin said:
yup bro, I think its the consequence of using CMS vs which is so stiff, so far i hav seen 1 intake valve only, its tip holding the bolts or lock was a little bit deep compared to others, my mech told me that I supposed to "pasubo" (i m not sure what is the exact term in english its like "hardened the tip of the valve using acetylene laser until it will turn red like ember, then immediately soak it in a cold water"... just like when forging a sword by a blacksmith, is this advisable? hmmmm... interesting.. and after u undergone this process, worries no more i think this is the bottomline, so whether its cms, yypang,tk,AP, etc valve spring, short time wear and tear can be extended to a longer time, jejeje correct me if im wrong mga masters.

pahabol: whats the best replacement for stock seat of valves (intake and exhaust)? Should I go for after market or ? and price. jejeje
Click to expand...
just use faito lightened valves. they are same size to stock valves.
 
Benedict Hermo

Benedict Hermo

New Member
Cesar Ablao said:
our yamaha sniper valve are not shim type. suzuki raider uses cams to push the valves thats why it uses shims. sniper on the other hand uses rocker arm and valve adjuster to push the valves.
Click to expand...
Well said but its depends on your mechanic how he apply that concept..will post the pics later...
 
mac kevin

mac kevin

Super Veteran
Benedict Hermo said:
look closely this is my head what is the difference between the stock, my mechanic apply the shim type design
Click to expand...
meaning a plate-like metal is inserted like washer in the bolts bro? so what is now the adjustment of valve clearance if we do add some coin metal
 
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