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Big bore kit
Posted: Thu Jul 29, 2021 8:57 am
by crisp
Hi guys, considering fitting a big bore kit to my Forza 300!
Does anyone have experience of doing this?
Is a bigger throttle body & free flow exhaust required or will it work ok with just a bigger bore kit?
Re: Big bore kit
Posted: Thu Jul 29, 2021 9:31 am
by Old Scoot
I don't have any experience with it but please do keep us posted
Re: Big bore kit
Posted: Thu Jul 29, 2021 9:33 am
by davenowherejones
OK, who makes this kit and why do you want to go faster?
Can the variator handle faster? The clutch?
The tires are rated for this faster speed.
120 kmph is not fast enough for you?
Where do you live?
Re: Big bore kit
Posted: Thu Jul 29, 2021 10:14 am
by Old Scoot
davenowherejones wrote: ↑Thu Jul 29, 2021 9:33 am120 kmph is not fast enough for you?
The 2020 Forza 300 do almost 130km/h
Re: Big bore kit
Posted: Thu Jul 29, 2021 11:15 am
by davenowherejones
It takes a much bigger engine to go much faster.
A 50cc increase will only get you a few miles per hour more.
Hardly worth it.
Re: Big bore kit
Posted: Fri Jul 30, 2021 12:13 am
by crisp
Old Scoot wrote: ↑Thu Jul 29, 2021 10:14 am
davenowherejones wrote: ↑Thu Jul 29, 2021 9:33 am120 kmph is not fast enough for you?
The 2020 Forza 300 do almost 130km/h
I’m living in Thailand & know of at least two places that supply big bore kit for our scooters.
I don’t want to get into the politics of why I want to go faster ..why didn’t you buy a bigger bike etc.
I’m here asking the questions about throttle bodies & free flow exhaust being required with a big bore kit?
Thank you, ride safe
Re: Big bore kit
Posted: Fri Jul 30, 2021 4:36 pm
by davenowherejones
How many cc is the big bore kit?
Re: Big bore kit
Posted: Sat Jul 31, 2021 12:38 am
by canthai
crisp wrote: ↑Fri Jul 30, 2021 12:13 am
Old Scoot wrote: ↑Thu Jul 29, 2021 10:14 am
davenowherejones wrote: ↑Thu Jul 29, 2021 9:33 am120 kmph is not fast enough for you?
The 2020 Forza 300 do almost 130km/h
I’m living in Thailand & know of at least two places that supply big bore kit for our scooters.
I don’t want to get into the politics of why I want to go faster ..why didn’t you buy a bigger bike etc.
I’m here asking the questions about throttle bodies & free flow exhaust being required with a big bore kit?
Thank you, ride safe
I live in LOS also.
Asked the guy who did my 300 big bore on my CRF - he said change the pipe if you want it louder. Not required otherwise.
We did use the CBR300 throttle body and ECU
Re: Big bore kit
Posted: Sat Jul 31, 2021 3:23 am
by Old Scoot
