Big bore kit

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crisp
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Big bore kit

Post 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?
Old Scoot
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Re: Big bore kit

Post by Old Scoot »

I don't have any experience with it but please do keep us posted :)
davenowherejones
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Re: Big bore kit

Post 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?
Old Scoot
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Re: Big bore kit

Post 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
davenowherejones
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Re: Big bore kit

Post 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.
crisp
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Re: Big bore kit

Post 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
davenowherejones
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Re: Big bore kit

Post by davenowherejones »

How many cc is the big bore kit?
canthai
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Re: Big bore kit

Post 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
Old Scoot
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Re: Big bore kit

Post by Old Scoot »

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