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Vixion Problem

raven

raven

Super Veteran
turbulence said:
I'm hoping that some of you guys experienced this so you can help me out.

A friend bought a 57mm vixion kit months ago. His block already reaches more than 2000km. Now the problem is he can hardly hit 130kph, which he easily does using his stock bore.

His Mc runs fast up to 120kph then stalled at 125 for about 10 seconds then slowly climbing up to 130kph.

He uses REXTOR cdi, CMS cam, VIXION v-spring, 28mm keihin.

We tried 14-42 sprocket combi, 3rd gear 130kph but when you shift to 4th gear it rolls back to 125kph.

The best sprocket combi we tried so far is 14-44 but still not satisfactory. It can hardly hit 130kph.

What might be the problem?

Tappet setting is good, carb setting is good.
Click to expand...

have you tried BRT dualband plus 15x42 or 14x41 combi for the sprocket bro? if you install 21t for the 4th.... the bike "won't" just reach 140kph... right papa jval15 :shag:
 
Palawan Sniper 08

Palawan Sniper 08

New Member
master jval teach me how to do it
im planning for vixion kit upgrade..current mods
brt dual band rcdi
vixion v.spring
faito coil
k&n hi flow filter
iridium sp
proliner exhaust
topspeed 130
my mc is smx
tia
 
G

ghotichooder

Veteran
gunkhean said:
For rider wanna upgrade to vixion block kit, just use original vision block kit + vixion cam + TK valve spring + proper porting head + no use block gasket. Then the carb just do some porting to the carby + change the jetting. Sprocket will be 15-37. Other than that is just remain stock. That's I think u bike is ready to reach 170 km/h. When my bike using formula above, my bike is reach 175km/h. I,m 95kg fat guy. Try it.
Click to expand...
where can i find TK spring?...use no block gasket?...how do you seal the gap?
 
G

ghotichooder

Veteran
turbulence said:
I'm hoping that some of you guys experienced this so you can help me out.

A friend bought a 57mm vixion kit months ago. His block already reaches more than 2000km. Now the problem is he can hardly hit 130kph, which he easily does using his stock bore.

His Mc runs fast up to 120kph then stalled at 125 for about 10 seconds then slowly climbing up to 130kph.

He uses REXTOR cdi, CMS cam, VIXION v-spring, 28mm keihin.

We tried 14-42 sprocket combi, 3rd gear 130kph but when you shift to 4th gear it rolls back to 125kph.

The best sprocket combi we tried so far is 14-44 but still not satisfactory. It can hardly hit 130kph.

What might be the problem?

Tappet setting is good, carb setting is good.
Click to expand...
how much ur friend weight?...maybe there's something wrong with the kit installation such as insuffcient torque on the head block bolts or something, or piston ring not properly installed as they should be crossed marking during installation?...the intake manifold not suitable?...wrong crank marking?...defective CDI or valve spring?...
 
turbulence

turbulence

Super Veteran
ghotichooder said:
how much ur friend weight?...maybe there's something wrong with the kit installation such as insuffcient torque on the head block bolts or something, or piston ring not properly installed as they should be crossed marking during installation?...the intake manifold not suitable?...wrong crank marking?...defective CDI or valve spring?...
Click to expand...
I've done this many times sir and I believe everything is in right position as being told as plug and play
 
bordz motorshop

bordz motorshop

New Member
very impossible... i can reach 130 - 140kph stock bore,28mm keihin carb,faito advance lowcam, pitzbike cdi, stock stroke, stock crank,stock gear...

better change a mech...
 
turbulence

turbulence

Super Veteran
bordz motorshop said:
very impossible... i can reach 130 - 140kph stock bore,28mm keihin carb,faito advance lowcam, pitzbike cdi, stock stroke, stock crank,stock gear...

better change a mech...
Click to expand...
my stock bore can go 150-160km. why do i then needed to change a mechanic? have you even tried using vixion block?
 
sprinter777

sprinter777

Member
turbulence said:
I'm hoping that some of you guys experienced this so you can help me out.

A friend bought a 57mm vixion kit months ago. His block already reaches more than 2000km. Now the problem is he can hardly hit 130kph, which he easily does using his stock bore.

His Mc runs fast up to 120kph then stalled at 125 for about 10 seconds then slowly climbing up to 130kph.

He uses REXTOR cdi, CMS cam, VIXION v-spring, 28mm keihin.

We tried 14-42 sprocket combi, 3rd gear 130kph but when you shift to 4th gear it rolls back to 125kph.

The best sprocket combi we tried so far is 14-44 but still not satisfactory. It can hardly hit 130kph.

What might be the problem?

Tappet setting is good, carb setting is good.
Click to expand...
Sir i think you have some problem with your carburator settings, stalling at that speed, most of the time is due to improper air fuel mixture..
Due to the fact that you changed your block and will surely increase your CR (compression ratio),that will generate more heat at the combustion chamber that needs a/f mixture correction...
you also need to lower your 4th gear ratio to sustain the resistance of 130kph and above...more power sir..
 
turbulence

turbulence

Super Veteran
sprinter777 said:
Sir i think you have some problem with your carburator settings, stalling at that speed, most of the time is due to improper air fuel mixture..
Due to the fact that you changed your block and will surely increase your CR (compression ratio),that will generate more heat at the combustion chamber that needs a/f mixture correction...
you also need to lower your 4th gear ratio to sustain the resistance of 130kph and above...more power sir..
Click to expand...
then how come the faito 60mm block just work out fine sir?
 
sprinter777

sprinter777

Member
turbulence said:
then how come the faito 60mm block just work out fine sir?
Click to expand...
well its different block sir...have you check the CR? or the compression pressure every time you change something like block, chamber volume and cams?Different blocks have different height thats why we always check the deck height especially to maximize tha squish band..cams also affects the compression pressure..
 
turbulence

turbulence

Super Veteran
sprinter777 said:
well its different block sir...have you check the CR? or the compression pressure every time you change something like block, chamber volume and cams?Different blocks have different height thats why we always check the deck height especially to maximize tha squish band..cams also affects the compression pressure..
Click to expand...
then i guess vixion is not a plug and play after all... but a waste of resources... are you using vixion block sir? do you have some videos to prove allyour theories of checking checking?
 
sprinter777

sprinter777

Member
turbulence said:
then i guess vixion is not a plug and play after all... but a waste of resources... are you using vixion block sir? do you have some videos to prove allyour theories of checking checking?
Click to expand...
Yes sir i used vixion blocks.
Sir i think its not simply a theory, its a common practice..your mechanic knows these things..
 
bordz motorshop

bordz motorshop

New Member
turbulence said:
my stock bore can go 150-160km. why do i then needed to change a mechanic? have you even tried using vixion block?
Click to expand...
i am very familliar with vixion block... you got a very fast stock sniper... 150 - 160kph... with my sniper i can only top it along 130 - 140 without docking at all... and my weight is 96 kilos...


some of my friends got a vixion block...they can reach even 170kph...

one of the vids that can prove that a vixion block can run as 170 is this...


the blue x1r got a vixion block installed... we nicknamed him as boy atang... the vixion 170 topper... :D

and his mechanic is @kimredbull i really wonder why your friends vixion setup cant run 140kph more...
 
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