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I think I would leave the space, you might end up with too much pressure on the balls and cause them to bind. They do have to roll but not against each other.

Gordon (Vintage Karting Specialty) has that decal 765-969-7756 . I just picked up two of them for a kart restorer in England.

Had a great clutch on it also but the drive wheel timing belt pulley was plastic which didn't hold up that long plus they attached the brake drum to the plastic wheel which help to compound the problem. It was a 5mm pitch for the smaller horse power engine. Bigger karts that use timing belts...

Another question, does anyone have that mini-bike? Trying to figure out if that is a shift lever to a gear box.

I second the motion on set screws. Always drill and tap the jackshaft or an old crank and hold things on with a bolt and washer. Set screws mar up the shaft and makes taking things apart harder and you cannot look at them and tell if they have loosen up. The next thing you are looking for...

Dodgecharger -- did you get the driver and driven you needed? Was your engine crankshaft size 3/4" or 5/8" ? Still talking about the series 20 which is the only one we made. Our driven was 7" since the market we went after was go karts, mini-bikes were no longer in production back in 1996 in...

Already talked to him by e-mail and told him to switch clutches. He needs a 12 tooth #35 chain clutch . Changing the rear sprocket would be a real pain in the a$$. Getting a bore that large in the #41 chain sprocket would be a hunt and search and a lot of frustration. Changing the clutch is...

Minimichael- It is the drum and sprocket I want to see free spin on the sleeve of the clutch once it is slide on the crankshaft. If it is a one piece clutch--when you pick it up by the sprocket the shoe assemble lifts with it at the same time. 2 piece clutch in a 10 tooth #35 chain would not...

First, the short shaft situation. Don't use an "SS" style Max-Torque if the shaft is 1.5" or less because the sleeve of a Max-Torque is 2 pieces and they will be pulled apart in a very short time without the full support of the crankshaft. The only exception would be a racing clutch which is a...

Since the Briggs cranks are not heat treated it is just a little more work to drill the end of the crank and tap it. You don't have to drill the standard 5/16 -24 that Briggs uses but a 1/4-20 if adequate. You don't want to fix the clutch to the crank, there should always be some lateral...

Skipp - you are correct in that we have quit putting set screws in the 3/4" clutches but we still put them in the 5/8" bore clutches since many of those old cranks are not drilled and tapped. The 10 tooth #35 chain sprocket can fit either the 5/8" or the 3/4" crankshaft but it is a two piece...

Bullseye -- that kart looks so nice you almost hate to get out and drive it. Real show stopper.

How big are the rear tires 15" or 22"? Briggs quit selling engines to the kart manufacturers in 1999 so it was Tecumseh starting in 2000 to 2005 when all the kart manufacturers shut done production.

Looking forward to seeing it all back together and rolling once again. Thanks for preserving some history. The handyman is a dying breed.

A timing belt because it is a belt refer to the teeth on the hub as a pulley. Do a search for HTD clutch in 5mm and 8 mm. A sprocket drive is +/- .007 while a belt drive system is +/- .0005 much tighter tolerances so not that many people with old equipment can hold the tolerances which will...

The Action Products (Tempe, AZ) karts used a 5mm belt drive system. We made the clutch for those karts. The 8mm drive is more typical and several other clutch company's used the 8mm pulleys. The 5mm pitch was ok on the 3.5hp engine but when you moved up to 5hp and larger you would want the...

The Rod & Custom magazine for June, 1960 on page 68 had a full page ad also.

The kart is a Rocket Kart made in southern CA, by Standum Industries. Information provided by Frank Weir of Ireland who writes articles on vintage karts in Vroom magazine that was published in Italy. They had full page ads in Let's Go Karting and Karting Handbook. Do you want a picture of the...

The only other way to get the alignment you need is to either move the engine over that 1/2" or move your rear sprocket inward both of which are a pain in the a$$. The simplest is to hang the clutch past the end of the crank BUT you will need to drill the crank to do this properly. Or you...

The clutch is a china made with a built-in-key. You have it lined up pretty good in the picture and the crankshaft has a centering hole in the end of it. Just drill in the crank about 1 1/4" deep and then tap it with a 1/4-20 tap. Better ask first then assume, is that a 3/4" crankshaft or a...