Honda Spree and Elite 50 Forums

Question for you guys:

1.) What combination do you guys recommend for a Big Bore Kit and bigger Carb/intake? Looking for someone to point me in the direction of something that is a decent upgrade from the stock head/cylinder but does not require a lot of complex fabrication. (See my signature for current upgrades that have already been completed)

2.) What do you recommend to go with the Big Bore kit? (carb, intake, exhaust, etc)

you need to tell us the top speed you want out of it and inney thing you need out of it..
swimmingfree

swimmingfree wrote:you need to tell us the top speed you want out of it and inney thing you need out of it..
swimmingfree

Really don't need a crazy top speed. With the current setup...its pushing 43mph. I was looking for somethign to get me up to the 50mph mark....give or take a little.

What would be the next step up from a stock head? 51mm? Thats pretty much what I'm looking for.....an upgrade from teh stock head/cylinder.

youll need to up grade the finale drive to get the top speed you want.. the top speed you said 43 is that gps or by thre speedo
swimmingfree

swimmingfree wrote:youll need to up grade the finale drive to get the top speed you want.. the top speed you said 43 is that gps or by thre speedo
swimmingfree

I used a GPS.

I'm just curious how much of a difference it would be with a BBK. Say a 50mm....is it even worth it?

do you have a tack on it now??? im not sure but i think your doing a bout 9.000 rpm as it is if you went to 9/1 to will get close to 50 ...
swimmingfree

swimmingfree wrote:do you have a tack on it now??? im not sure but i think your doing a bout 9.000 rpm as it is if you went to 9/1 to will get close to 50 ...
swimmingfree

Sorry I'm a bit confused by your response. I do not have a tack on it. And I'm sorry as I gave some incorrect info. My average speed with stock gears was around 41mph....sometimes 43mph if I was lucky (and tucked). This is going by GPS so I'm not sure how accurate that is with my crappy Garmin. I just installed the 9:1 gears and have not tested it yet for any new speeds. But while its apart, I'm trying to figure out if I should go ahead and do a big bore kit.

Basically what will a 50mm Big Bore Kit combined with the 9:1 gears get you to as far as top speed is concerned? Would a bigger carb and aftermarket exhaust compliment the two above mentioned items?

i think the stock piston is 39mm a 50mm bbk is nice but you shooed go with a bigger carb and a nice pipe will help you will see more rpm out of the bbk the more air you can get in and the more rpm you will get out of it ... you may see 50ish out of her with just the 9/1 finale drive and the rest stock ..
swimmingfree

swimmingfree wrote:i think the stock piston is 39mm a 50mm bbk is nice but you shooed go with a bigger carb and a nice pipe will help you will see more rpm out of the bbk the more air you can get in and the more rpm you will get out of it ... you may see 50ish out of her with just the 9/1 finale drive ..
swimmingfree

Awesome thanks! I think I'm just gonna go for it and get the 50mm Big Bore Kit that Taz sells.

Any recommendations on an exhaust and bigger carb?

If you're just looking for about 50 then Id say go with a 24mm carb and a v8 exhaust (make sure the v8 is the one designed for 50-72cc). Might even be able to run a smaller carb like 21mm. And get a UNI filter too

bfowler wrote:If you're just looking for about 50 then Id say go with a 24mm carb and a v8 exhaust (make sure the v8 is the one designed for 50-72cc). Might even be able to run a smaller carb like 21mm. And get a UNI filter too

Any recommendations (or links) on where to get the V8, OKO and UNI filter?

UNI can get from the UNI website. You need the one that is 2".
OKO from treatland. Get the flat slide not the round slide.
And v8 theres a lot. eBay has them as well as vtcycles I believe

What would you guys say is the most modest reliable proven Big Bore Setup that requires no machine work or heavy modification?

I'm talking head/piston, size carb, size/type exhaust, intake, etc.

bfowler wrote: Get the flat slide not the round slide.

why? im new to this and im trying to figure everything out as im building a 01 elite 50mm bbk.

W8kbrder wrote:What would you guys say is the most modest reliable proven Big Bore Setup that requires no machine work or heavy modification?

I'm talking head/piston, size carb, size/type exhaust, intake, etc.

The best bolt on performance is pollni 72cc or malossi 72cc

You can use the stock exhaust and carb, you just need to change the jetting.

Then later if you want to go really fast you can get a better pipe.