shaft

Has anyone ever seen a vertical shaft engine on a mini? I thought you might just turn the engine sideways?

So I am looking for a complete jack shaft for a super bronc. The last owner well messed it up good and I am interested in fixing the whole thing. Anyone got one for sale?

I'm having trouble removing the max torque 3/4" clutch bolt from the end of the horizontal Shaft on a 6.5 hp 212cc predator engine. The clutch is mounted w sprocket side facing toward the engine. I try holding a large flat blade screwdriver against the back of clutch through hole but it won't...

I want to trade this brand new Premier clutch for a 5/8 shaft clutch. I guess I would sell it too, but I don't know what to ask for it.

This is on ebay. Rupp Mini Bike Clutch and 2-Speed Jackshaft Assy. (NEW) | eBay To me it looks like a normal clutch mounted on the jack shaft. The sprocket should be mounted to the clutch pad side and not the bell side. It should look like this Comet one. Am I right??? :shrug...

It's late and my brain is fried, need a little input. I just changed the tires and the new ones are a little shorter than the old ones. I want to regain (and maybe add a little extra) of the top end/max speed. Do I want to increase or decrease the size of the primary side jack-shaft sprocket...

I'm looking for a clutch that will fit a 1" shaft for a 41 chain (I think thats whats on a Baja Warrior) and that can handle a 12hp engine. If anyone has one or knows where I might be able to get one at a good price let me know. Also if anyone has any knowledge on how many teeth I should get...

Who has done this? How much did it cost? I have two 5hp hondas sitting around collecting dust...

Well I was riding my mini around and the bike started making this awful noise and i saw the jack shaft was jumping up and down inside the cups of the bearings. It's a 72 wards bike. I get back home and see that the bearings came completely out of it on one side. The cups to these bearings look...

Hi gents. I have looked at just about any photo I can find of old Tote Gote 780 types with their worm gear drive. It has always fascinated me. I note these are fairly light weight looking and have no idea how they hold up. Has anyone ever fabbed up something like it? Itcomes to mind to...

Is there a replaceable bushing in an HS50 block where the governor shaft comes thru? The shaft on mine seems to flop quite a bit. Last falll at Osseo, my minibike surged from idle to throttle position speed several times as I was riding on the road. Three different times at wide...

I have a honda gx 160 they came off of a trash pump . it's a great engine fires right up nicely but the problem is that the drive shaft is slightly bigger than a 3 quarter inch clutch will take . it's almost like it's a millimeter bigger than 3 quarters of an inch. the clutch simply will not...

I have seen a jack shaft set up on 2 bikes where it moves the sprockets to the right side of the rear tire, what is the deal with that? what purpose does it serve and where do you get them? Im thinking it is to move the gear so you don't knock the chain off when racing on a left turn oval?? Thanks

Anyone know what size bolt fits the internal threads inside the shaft of my new Tecumseh powersport 3.5 engine? I don't seem to have anything that fits in my spare bolts and don't know what to grab at the hardware store. THanks!

Current setup is a DB30 old style, engine mods include gov out, performance air and exhaust. Gearing is a Max Torque 12T and sprocket adapter 58T. Tire size is 15” diameter with stock 5.00 wheel. My dad says I don’t need a jack shaft for two reasons: 50 MPH is enough speed for a bike built...

Hey guys. Feeling like I should know the answer to this question. I received my 10" jack shaft kit from OldMiniBikes w.h. I've never installed one of these and can't make much sense of it. The kit came with 2 snap ring bearings, 2 shaft keys, 2 sprockets, 1 lock spacer, the shaft and the 2 side...

I need help lining up the dots on the crankshaft an camshaft I lined them up at tdc bolted up the crankcase and tried to start and wouldn't start so I reopened the crankcase and the timing was off.. I took the camshaft out and when I did the valve opened an a rod slid out, now I can't get the...

does anyone know how to do this? theirs a video on youtube but i was wondering if anyone has used a mower engine for a minibike and how well it works.. if you guys have any advice please help. im interested in doing this but im not sure how good it will work. if you guys have any pictures...

I have this Briggs, but no idea if it runs. Was on my bike when I bought it. $75.00 shipped or partial trade for a HS40 lighted flywheel. I also have H70's, 3/4" shafts email if interested, they are off of snowblowers. Just not sure if there are any interest in these.[

Patent US3610062 - AUTOMATIC MINI-BIKE TRANSMISSION - Google Patents these are the patent drawings for the two speed jack shaft, it's interesting reading if you ever wonderd how they work