HELP! Need to get Yerf Dog 320 Running

[f4atx]

I bought a Yerf Dog 3203 for $100. It has no engine, clutch, or torque converter.

What is the most economical way to get this kart running.
I have already bought a 6.5 Predator engine from HF.

I'm looking at a "MaxTorque #40 10 Tooth 3/4" Bore Centrifugal Clutch Drum Housing Only Go Kart Mini Bike" for $22.
Will this clutch work?

What size sprocket & chain will I need?

Will I need to buy anything else?

 

[OzFab]

Welcome to the forum

From the description, that "clutch" is only the outer housing which is useless without the business end. You need a complete clutch which will set you back around $35.

Did the kart have an axle sprocket fitted? If so, measure the distance between the teeth & the number of teeth & report back.

Pics would also help...

 

[landuse]

How tall are your tyres? How heavy are you? We will need some pics for sure. Did your kart have a jackshaft (we will know from pics)?

As far as I know, that Yerf Dog came standard with a comet 30 series, or TAV20. Going to a centrifugal clutch might necessitate a jackshaft to gear down far enough.

 

[f4atx]

Thanks for the replies

Sprocket has 60 Teeth and they are 1/2" apart.
Sprocket Part# 40A60

Tire are 19"

Will Post pics shortly

 

[f4atx]

additional pics

 

[Blazkowiez]

You'll need a series 30 3/4" driver clutch. You can find them online between 60-100 dollars fairly easily. If you don't do something silly like drill new holes for that engine you'll be using a Comet 203591 belt or Rotary number 10052.

 

[f4atx]

Once I get the Driver clutch and belt should I be good to go?

 

[OzFab]

Well, no, you need to install the engine too

But seriously, don't forget the chain... Make sure the teeth on the driven are the same as those on the axle sprocket (which sounds like a #41 pitch)

 

[f4atx]

Thanks for all the advice and info.
I ordered belt and driver clutch off ebay.
I'll post update when I get them in.

Kart Investment:
Go Kart $100
6.5 HF Engine $90+tax=$97.5
Rotary Belt 10052 $18
GO KART MINI BIKE 30 SERIES TORQUE CONVERTER CLUTCH DRIVER 3/4" BORE $47.50
TOTAL-$263

 

[Dalascowbyfan]

Nice buy, Drum Brake w/ 19" cable. If Cable is in bad shape good luck with that. Not making them anymore. Had to modify my sons 3205 with hydraulic, and a rotor on the axel. But still all and all Good find.

 

[jamyers]

You'll also want to read up on cleaning / installing / maintaining your CVT, the FAQ / articles forum here has tons of good info. You might also check out my Yerfdog build thread in my sig for a step-by-step Predator-CVT install on my yerf.

Looks like you got a good deal all around, have fun!