Ninja Dog

[yellowbeard]

Started on a new project. With a Kaw. 250R Ninja engine on a Yerf Dog frame. working on the motor mounts now.

 

[2SlickNick]

Oh yeah!

 

[yellowbeard]

shifter and clutch

got the shifter and clutch handle done. working on the jackshaft.

 

[yellowbeard]

need to know what size sprocket?

 

[yellowbeard]

update

Ninja Dog update, got the motor mounted. pedals done. and the shifter rod hooked up.

 

[2SlickNick]

Looking sweet! Any plans on upgrading the front end?

 

[yellowbeard]

got some Yamaha 250 front A arms, hubs and wheels.

 

[2SlickNick]

I just realized youn don't have any brakes...

 

[yellowbeard]

right now it has band brakes on it.

 

[KartFab]

ninja dog

 

[yellowbeard]

now I know what it will look like when I'm done.

 

[Tonyzsi]

Good luck and have fun! I have a YD3203 and I hardly feel safe hitting the mid 20's in it. I hope you can get a good setup for the front end to make it handle better! Plus I look forward to seeing the brake set up you come up with. I'd like to upgrade mine to a disc, but I don't have much time and I can't weld anything. I have a neighbor who may be able to do it, but I want to see a good set up that I want to copy before I even try it.

 

[yellowbeard]

hadn't drove this one. what seems to be the problem with the front end?

 

[2SlickNick]

You have a lot of weight on the rear end. ThAt front End suspension is not ideal for off road...

But I would be more worried about stopping before ride comfort.
Do you plan on adding a disc brake?

 

[itsid]

couldn't resist
'sid

 

[yellowbeard]

shopping around for a disc brake set up. what is the problem with the front end? to weak? to soft? etc????

 

[2SlickNick]

shopping around for a disc brake set up. what is the problem with the front end? to weak? to soft? etc????

It is was the yerf dog spiderbox kart that had the weak front end... The ball joints were prone to failure. You don't have ball joints.

 

[OzFab]

what is the problem with the front end? to weak? to soft? etc????

The major issue is that the majority of the engine weight is behind the rear axle, making the front end lighter (early Porsche 911s had the same issue)...

The other main issue is you have no ackermann in the spindles, maybe you have a crossover mount on the steering shaft but, I can't tell from the pics...

 

[yellowbeard]

have 2 5/8 universal joints to add to the steering shaft. Moved the steering to the center of the cart.

 

[OzFab]

That doesn't tell me how the tie rods are mounted...