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C) Janus 250 Stage 3 Performance Package

$499.00 USD
$499.00 USD
$699.00 USD
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C) Janus 250 Stage 3 Performance Package
C) Janus 250 Stage 3 Performance Package
C) Janus 250 Stage 3 Performance Package
C) Janus 250 Stage 3 Performance Package
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  • Load image into Gallery viewer, C) Janus 250 Stage 3 Performance Package
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installation

MotoCult can install this for you.
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More into DIY? Here's a video:

about this

World’s first and only comprehensive performance package for the Janus 250 model line. This package produces 20.7 horsepower at the wheel! That is a 48% increase in power over a 14HP stock engine. There have been MANY hours spent on the Dyno perfecting this package and now it’s ready to be installed onto your Janus 250. 

Do you want MotoCult to install this kit for you? Add the installation option to your cart HERE 

Don't forget to add the crank shaft seal installation tool to your cart

Full installation video here https://youtu.be/HOzzppXZtGE

This package includes:

-A true 250cc power cylinder with piston, rings, wrist pin, and clips. Did you know that your stock CG250 is actually only 229cc? This piston and cylinder will increase your displacement by nearly 10%

-NEW! 16mm length location dowels 

-Stainless steel head gasket 

-Stage 3 enamel badge

-Composite base gasket

-292 Power cam and 44t cam gear(cam is already installed in gear)

-Deluxe exhaust gasket

-Magneto puller tool

-Deluxe valve cover gasket

-Genuine Keihin main jet

-Crankshaft seal (you will need to remove your old one to line up the new cam gear)

-45T or 43T rear sprocket. This will fit if your rear wheel uses the Yamaha YZ80 hub. Some US motorcycle manufacturers use the YZ80 rear hub. 

-Carburetor needle with 5 clip positions

-Carburetor slide

-Stainless steel riser plate for the upper rocker arms. This plate allows you to keep the push rods at stock length. 

Customer Reviews

Based on 4 reviews
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K
Kevin Brooks
Thank You MotoCult!

What a difference Devin's Stage 3 and carburetor kit have made to my Janus Gryffin 250. The improved performance has made the bike so much fun to ride. The bike accelerates smoothly throughout the power band but what is really nice is how there is plenty of power left at the top end. I like having that power at the top end to be able to blast out of a potential hazard. I highly recommend Devin's work. If you are thinking about making the upgrade, don't hesitate.

R
Robert Shaw
Has transformed the perfomance of my Janus 250

I installed the Janus Stage 3 Kit + Nibbi Carb + the Motocult polished exhaust and it has transformed the performance of my Phoenix. It's so much more fun to ride and now there is no problem accelerating with traffic. The power band is so much improved and it sounds so much better without being obnoxious. A highly recommended upgrade and the support from Motocult is superb.

B
Bruce Stephenson
Awesome Power!!

Wow!! What a difference! I'm now one gear higher in all my climbs; I can roll out of lower RPMs; much stronger pulls! Install was by-the-number with help from MotoCult's videos. Overall, I am VERY please with my investment and would highly recommend to anyone with a 250 Janus.

J
J.T. Gribble
Highly Recommended!

I added this kit to my Halcyon 250, and it made a world of difference. There's a lot more pep in that little engine now.

I'm no mechanic, but I'm not scared to turn a wrench either. Installation was simple and pretty straightforward. A couple hours of tinkering and I was good to go.

If you're looking for a performance bump I'd recommend this kit.