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Honda Ex5 upgrade


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#1
msapi

Posted 27 October 2005 - 10:05 AM

msapi

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i have this honda ex5 year 2003.

so far the bike no problem. pickup not bad. my only complain, top speed
takde. after 90km/h slow betul nak naik lagi.

any idea?
what parts can be changed?
cam, port polish head?

i try not to overbore to avoid reliability problem.
any help much appreciated.
tq

selamat berpuasa n hari raya.

#2
g88

Posted 27 October 2005 - 11:34 AM

g88

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try change to small spocket ?

#3
msapi

Posted 28 October 2005 - 11:42 AM

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emmm sprocket? but if i go for more top speed, pick up gone.

any thing can be done to the engine?

#4
renxun

Posted 29 October 2005 - 01:32 AM

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change the block to big bore type and change to hi-cam is much much
enough than doing all other modification and doesnt harm any reliability

#5
aristotle

Posted 29 October 2005 - 09:52 AM

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Hy, I also have the same problem like u with my Honda Ex5.Even after i
had change to smaller sprocket, the top speed still 90km/h.Any
suggestion ?

#6
msapi

Posted 31 October 2005 - 02:37 PM

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renxun: care to explain more?
im interested.

what type of block u seggesting? piston?
cam ape jenis?

how much would all these be?
where 2 do it?

#7
renxun

Posted 02 November 2005 - 01:26 AM

renxun

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if i were right about ur upgrade is just for better power for daily
commute i would recomend the change of your engine block to the big bore
type..... now ur piston size if im not mistaken is 53mm the big bore will
consist of a piston and piston rings of 57mm together with the pin,pin
bearings and the block itself.... if im not mistaken the price is rm55 at
sentul not including labour to install...then u will have a 128cc bike
after tat... the cam ... if im not mistaken vary from rm35-80 bucks for
those cheapo cams...if possible try NOT to get cams of suraya brand and
uma racing cams are also ridiculuos...but if u are going for those cubprix
spec.. it would cost u around rm400 per cam... but normal upgrades the one
i mention will do good.... after tat ask them to install a mainjet of Two
size larger than wat u are using now ....(increment of 10)

i guess tats the most simplest explanation i can give.... u dun need to do
any other extensive mods if u are not those mod freak like me...

#8
renxun

Posted 02 November 2005 - 01:34 AM

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or if u dont mind... to complete and enhance the power from ur new
block ... fit in the after market ekjoz from ahm... which looks ridiculuos
if u are those family man type ....and u dun need to purchase the sp
version .. just the standard version will do good without output too loud
exhaust sounds.....those open type like mine are real loud and if u are
not a sound lover u will found out its very irritating and ur neighbours
might complaint when u come back late nite... and not to mention u go into
shopping mall carparks alot of car alarm will went off due to the loud
sound...

#9
Vyraz

Posted 02 November 2005 - 07:26 AM

Vyraz

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hehh..
get ready for a rocketed fuel consumption.
u'll love it.
and ur local petrol station will love you more..


#10
WBH8668

Posted 04 November 2005 - 01:46 AM

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haha...i more interested to know how much the cost to modified as the
detail u give above.

i saw before a Ex5 modified with clucth!