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Ezcome-ezgo is checking with his lawyer before he gives you any advice. There is just too much to change over and make that mobility scooter safe. If you are doing it just for fun and games that another story but if you need the mobility scooter to get around I WOULD ALSO PUT ON THE TOP OF...

Where is the plastic oil plug on the engine? Looks to be missing in your picture and that could be a BIG problem. I think I can see threads in that hole so that would tell me it is a function hole to add the oil. But then again my wife is always asking if I am blind when looking for something...

Bob- I stand corrected, your 1.12 is correct in high for the 7", old fingers and not proof reading what I typed.

Figuring a gear ratio for new people to karting you take the number of teeth on the smaller sprocket either on the clutch or the jackshaft and divide that into the number of teeth on the rear sprocket. A clutch with 12 teeth will normally go to a rear sprocket with 72 teeth 12/72 =6 So we...

Clutch will not work, you need a torque converter and like Denny indicated you need to get the gear ratio that you have corrected. When you say 9" wheels you are talking the rim size not the diameter of the wheel, correct? The important number is diameter of the tire from the ground to the...

There is no doubt about it you NEED a torque converter the clutch will only work if you live on top of the hill and you are always going down the hill. It will never make it up any hill and the tire size says it HAS TO BE a torque converter. Carter Brothers made their own jackshaft...

How tall are the tires from the ground to the top, looking for the diameter. Also a count of the number of teeth on the rear sprocket. The answer will tell if you have to switch from a clutch to a t/c.

Probably better bearings than you are going to get together since most are made in china.

The driven unit how it is mounted DOES make a difference since the spring in it can be wrapped for an INBOARD mount or and OUTBOARD mount. You want an INBOARD mount. Again look at the pictures of the other kart on this site. His is correctly mounted with the ramps of the driven facing inward...

I should have added if the engine has a plate mounted on it for a torque converter then it is going to be a series 30 which is the asymmetric system. The karts that didn't use the mounting plate where Brister Thunder Karts and several more like Carter Brother's made their own which used the...

Go look at the Forum Desperately Need Help by Sanch109 and you will see the same kart that Nick is working on. He just had more parts when he started working on his kart. A series 20 torque converter is what should be on a kart because it runs cooler and most of them used a 7" driven unit to...

Bullseye, you are not reading the suggestion correctly. I am talking about the void on the end of the crankshaft under the flat washer holding the driver unit on the crank. When people crank down the bolt with no support they cave in the flat washer and then cock the cover over the weights...

Bullseye you are correct you certain could do the same thing with washers that are as close to .749OD and a 5/16ID. The stack would be about .780"" tall or use as penny for height which is exactly .750 in diameter. The bolt is fine thread 5/16-24 that is 1 3/4" under the head and you use a 1"...

Did you build your own mounting plate for the driven unit? There should not be any spacers behind the fixed sheave on the engine. So what if there is a gap on the crank, that is the way Comet designed it originally on the bolt hold it on the engine. Max-Torque filled in the gap so the driver...

Denny -- anytime you get away from Mayberry and you are in the neighborhood stop in and gets some bar ends for your projects. They just go in the scrap and they are great give-a-ways. I bring them to the vintage gatherings and they never come home with me.

If you are lucky and the drum measures 4.2" then I have the drum. All I would need then is the bolt hole pattern which I can get off the drum if you have it apart by then.

Two things- BMI in Ohio is a good source for kart parts. They bought up many of the kart manufacturers assets when they all closed down in 2005. One of the few he didn't buy was Carter Brothers in AL -- they had a convenient going out of business fire. You could drop them off and I will go...

Another thing you can do when you put it back together is to add several washers between the sprocket and the brake drum so the brake band will be centered around the drum better so you will have full contact of the band on the drum. Some brake bands have a centering tab on them to do this and...

"Ok", the bracket holding the brake rod is also holding the fixed end of the brake band. Hard to tell how much material is still on the brake band but I would start there and get a new brake band. The brake drum looks to worn pretty thin so if you are doing one you might as well do them both...

Denny is giving you great advice. Series 20 is much better for a go kart than a series 30 because it will run a lot cooler. Most people use the 30 because of the bolt on mounting plate but it was designed for a mini-bike not for a go kart. Many people used it because it was simple and most...