Hey All! Could use some tips!

[Builds4Christ]

Hey all, I'm new to carting. I picked up a neat little rig from market place recently and finally got it running, but I think it needs some more things.

I do not know the make and model, but it has a Howhit 150cc motor, which I think is sorta like a gy6.

I bought an amazon wiring harness that came with all the electronics and after some time, I got it all wired in. It ended up needing a new carb as well because it was seriously corroded inside the bowl area. Jets were all screwed up as well.

But I got it started and it goes!

Only thing is, I'm thinking it needs a few things.

Currently, it has no PCV system and no fuel pump (its gravity fed). It almost feels like its being starved at full throttle. The other thing is, the gravity fed tank has no obvious vent, except maybe through the gas cap. Some of the setups I saw fed the PCV into the gas tank and I imagined this pressurized the tank a bit and helped with fuel flow.

What do you guys think?

 

[panchothedog]

I don't think gravity feed from that tank mounted where it is could possibly be a problem. Pull the fuel line from the carb and check for flow. If the gas cap vent is clear and working like it should, it should be more than enough. I wouldn't worry about the PCV valve, but that's a personal opinion. Float bowl setting in carb could be off, or fuel filter gummed up. I don't think those type of engines come with a governor. Congratulations on getting your wiring sorted out. Many people have a real problem with that.

 

[Builds4Christ]

Thanks for the quick reply! Man it was a bear, but I happen to like wiring generally, so that helped me. The harnesses are a rats nest lol.

The carb and fuel filter are new. When I dc'd the tank to put the new carb in, it was flowing pretty well. I just wasn't sure if it was getting enough on WOT pulls. So without an external vacuum type pump, what increases the fuel flow during increased throttle or WOT runs? Does the carb inherently do that with it's own vacuum? Man, it's been a long time since I've messed with carbs.

Also, the gas cap doesn't appear to have a vent on closer inspection, which surprises me. I could be totally wrong. I just do not see it at all. Do you guys have a trusted source for parts? It needs a new rack and pinion too, dang it.

 

[Builds4Christ]

Welp, did a fluid change. Tranny fluid came out like milk. Almost as if an exorbitant amount of water was mixed in there. I cleaned it out the best I could and refilled with good fluid. Oil screen was sorta screwed up so I'm waiting for a new one.

 

[Denny]

No fuel pumps on those that I know of. The vent tube on the valve cover goes to the air cleaner NOT the fuel tank.

 

[panchothedog]

As long as you are getting a steady flow from the tank it should be OK. These little engines don't burn gas at a very high rate. I suppose you could drill the center of the cap, ( minute hole) but you might have sloshing problems. Some gasket material and a little ingenuity could possibly take care of that. Do you know if your kart is a Yerf-Dog spider box? Except for part of the roll cage it sure looks like one. A few of the big kart supply shops sell rack and pinion setups. On line suppliers as well. Your going to have to take some measurements ( total width, mounting hole centers, and tie rod thread connections ) and hope you can find something close. What is the problem with the one on there now?

 

[panchothedog]

More gas in the tank = more head pressure.

 

[Builds4Christ]

Thanks again for your replies guys. I'm not certain which type it is, but it does have the connecting points for the rest of the cage. It looks as though someone's taken it off.

I gotta look into this center cap thing. I will keep it full though.

Do you guy recognize the frame? I'm looking to get parts for it, but am having trouble finding any.

The parts I'm having trouble finding are steering components and a roll cage.

The bushings that separate the steering shaft from the frame keep popping out and I'm not certain how to retain them, except maybe with glue.

 

[Whitetrashrocker]

This is kart stuff. Generic parts. Some times you just gotta make stuff and improvise. 1/2 water pipe should be good enough for a cage if your able to bend and weld.

 

[panchothedog]

Yes, I did think I recognized it. I think you have a Yerf-Dog ( brand ) spider box.
( model name ). Even more so now that you say it has attachment points for a roll cage. As far as I know it was possibly the last model they built before they went under. WTR post #9 kind of explains it like it is. Fabricate. I have seen several for sale over the past few years here in Southern California. People seem to have good things to say about them.

 

[Jacka$$withawrench]

More gas in the tank = more head pressure.

It clearly needs a 55 gallon drum mounted on top

 

[Builds4Christ]

LOL at LEAST 55 gallons!

Guys, so the front wheels are lawnmower wheels. Is that normal? I thought perhaps there would be a hub of something.

These are being held on by a nylok nut and i can't go to tight or the wheels bind.

What's a good setup for this and will I need new spindles? Thanks all for all your replies and guidance!

 

[panchothedog]

Not a very good look at the front wheels from your pictures. Riding mower tires are very common on the fronts. If the rim has a bearing pressed into it, then it is usually held in place by a " Nylock " type nut. It is a steel nut with nylon ( or some kind of plastic ) fussed into the last threads. This is so it won't come loose. If the entire nut on your kart is nylon that is probably not good. Nylock locking nuts are usually sold at any hardware store. They're good for about 3 or 4 cycles. Then the plastic starts to wear out and they don't hold properly. If you don't like your front wheels, pull one and measure the diameter of your axle. Should be 5/8". That size wheel with a pressed in bearing is one of the most common and inexpensive wheels sold. They work fine. 2 of my karts have them on them, and they get beat on pretty hard. Off road use exclusively.

 

[panchothedog]

My bad. Didn't read your comment all the way through. What you describe on the front sounds perfectly normal.