My First Spree Swap (Aero NH125)

[Tyler VR]

Where is this vr ..

Sitting in my garage, nice and warm.

I haven't touched it in a couple months, I don't have gear for cold weather riding. Since I swapped the top end I've done a couple heat cycles and a couple short rides. It seems to run a little better and a bit more peppy but haven't tried top speed yet.

[Tyler VR]

I got the gears I need to fix my spare nh125 engine.

[swimmingfree]

dose this mean it going to be running up and down the roads????
swimmingfree

[Tyler VR]

dose this mean it going to be running up and down the roads????
swimmingfree

The current nh125 on my spree runs/drives, just road it last week. The Gears are for a spare engine that had a bad transmission. So now that I have that parts to fix that I can build up this spare nh125 on the side.

Bad Gears from spare engine:

[swimmingfree]

so you have a spare motor that cool ... what do people think when you go whizzing by them??? lol
swimmingfree

[Tyler VR]

so you have a spare motor that cool ... what do people think when you go whizzing by them??? lol
swimmingfree

I can't read their minds but I'm assuming they're thinking "Dammmn, that's a fast little scooter"

[Tyler VR]

I liked how my front fender turned out on my ch80 spree so I did the same on my nh125 spree. I've only road it a handful of times this summer, mostly because the ch80 gets better mpg.

[Tyler VR]

Xmas came early! I've been planning on doing a carb upgrade for awhile so I finally purchased a CT intake and 26mm oko. This same type of intake manifold has been put on the nh125 engine in the past by other users, so I'm going to fabricate an adapter myself. The original size nh125 carb is 18mm, upgrading to this 26mm oko should increase performance greatly.

[Tyler VR]

Here's a pic comparing the stock intake manifold to the CT intake.

[motormike]

Party-on Garth...
BTW: I used a 24mm Mikuni flat-slide.

[Tyler VR]

Party-on Garth...
BTW: I used a 24mm Mikuni flat-slide.

It will be a party when I can maintain 60mph on a spree!

I had a hard time choosing between a 24mm and 26mm carb. I guess people have even gone up to 28mm but then had issues with low end bogging.

[1man8scoots]

Nice! If you want to have a ported top end send it to me. I'd imagine there's some work to be done to one. Those gears looked gnarly.

[Tyler VR]

Nice! If you want to have a ported top end send it to me. I'd imagine there's some work to be done to one. Those gears looked gnarly.

Thanks for the offer, I do have the spare nh125 engine I'm planning on rebuilding and doing some porting work myself. It's kinda been on the back burner for a couple years, so I think it's going to be my project for this winter.

[Tyler VR]

Here's the CT intake adapter I've been working on, I'm planning on angling down the area with the red cross hatching.

[Wheelman-111]

Greetings:

Very nice machine work, VR!

Adaptor plates must be thick and stiff enough not to flex and allow air gaps to form. Strongly recommend a torque wrench and even, criss-cross pattern for installation like a cylinder head.