Guys, I wanted to upgrade my bike to 150cc by using the FZ block but remain the carb, valves, valve springs and cam all stock... Besides removing the compression pin, rejet on the stock carb, what else I need to do??? If rejet what size of MJ and PJ do I need??? Is that ok using the stock connecting rod with this 150cc block??? If you have any other ideas and suggestions or maybe anything I have to take note pls share it here with me. TQ...
FZ150 57mm block
- Thread starter Kaito
- Start date
bro..
u still can remain all the parts...except just ur block upgraded...
but it can produce even greater power if u change the valve spring,cam...
stock carb is still ok with 22.5 pj n 110 mj...
but if u want more power output,change ur carb...
for the exhaust system...upgrade to big bore need a good exhaust too to release the tension build in the engine...
for ur setting rite now....it is fine...
but reconmendation:
change:
camshaft,valve spring,carb,cdi,n lastly set ur spocket ratio...
peace
u still can remain all the parts...except just ur block upgraded...
but it can produce even greater power if u change the valve spring,cam...
stock carb is still ok with 22.5 pj n 110 mj...
but if u want more power output,change ur carb...
for the exhaust system...upgrade to big bore need a good exhaust too to release the tension build in the engine...
for ur setting rite now....it is fine...
but reconmendation:
change:
camshaft,valve spring,carb,cdi,n lastly set ur spocket ratio...
peace
Mr. Kaito ,
modification done to my yamaha 135 omost same like you but ...
(1) FZ150 block
(2) BRT CDI dualband
(3) GTC Racing camshaft (removing the compression pin)
(4) CMS Valve spring
(5) copper metal top gasket
(6) ProTech air filter
others all remain standart , yet you can feel the power band at mid range till end ...
now need to do re-jetting main & pilot jet ...due to at low rpm jerking (respond slow when throttle press ...)
will try out the stock carb with 22.5 pj n 110 mj...
if i am not wrong stock 20.0 pj n 105 mj .. correct ?
plan to change exhaust to NOB1 SSS ... dont like to loud exhaust type .
modification done to my yamaha 135 omost same like you but ...
(1) FZ150 block
(2) BRT CDI dualband
(3) GTC Racing camshaft (removing the compression pin)
(4) CMS Valve spring
(5) copper metal top gasket
(6) ProTech air filter
others all remain standart , yet you can feel the power band at mid range till end ...
now need to do re-jetting main & pilot jet ...due to at low rpm jerking (respond slow when throttle press ...)
will try out the stock carb with 22.5 pj n 110 mj...
if i am not wrong stock 20.0 pj n 105 mj .. correct ?
plan to change exhaust to NOB1 SSS ... dont like to loud exhaust type .
sammyv
New Member
Bro so if I us fz block. Can I remain the compression pin? Because I hear many people removing it. What's the diff? What are the pros and cons of removing or remaining it
sammyv
New Member
Bro so if I us fz block. Can I remain the compression pin? Because I hear many people removing it. What's the diff? What are the pros and cons of removing or remaining it