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[Holmeswilliam86]

Hey guys just found this forum and I just started a new project. On the frame now is an 11hp but came with an 13. My plan is to use the 13hp. But I've never heard of this brand. Anyone have experience with Jiang dongmotors? And if so can you recommend a clutch to use. I'd like a chain if possible.

 

[OzFab]

Jiangdong are actually one of the better known Chinese manufacturers, that's not to say they're any better than others but, these days, everything is Chinese, even Honda...

Being a 13hp, it will, most likely, be a 1" shaft but, measure it with calipers to confirm; if so then you'll need something like* this...

*Do your own research, look around & double check chain size before you buy...

 

[Holmeswilliam86]

I measured and it is a 1" off the engine but the drive shaft that goes down to the axel is 3/4. It will need a sprocket there to catch the chain. Do you know what the piece is called.

 

[anickode]

That's a jackshaft, and it's meant to have a torque converter attached to it, not a clutch h and sprocket.

 

[Holmeswilliam86]

I've looked around a bit and can't seem to locate a 1" clutch and a 3/4 torque converter kit. Do you know of any kits like this or will I have to piece it together?

 

[anickode]

Comet 40 series or a Chinese clone thereof.

The driver pulley should be 1" for your engine, and the driven pulley should be 3/4"

 

[ezcome-ezgo]

Wait, aren't you saying the crankshaft coming out of the engine is 1" at the bearing and steps down to 3/4"?

 

[Holmeswilliam86]

Comet 40 series or a Chinese clone thereof.

The driver pulley should be 1" for your engine, and the driven pulley should be 3/4"

This is correct, I've been trying to find a clutch kit like this but can't seem to locate one.

 

[anickode]

I just googled "comet 40 series kit ¾" driven" and came up with hundreds of results including eBay and Amazon for $139 Chinese clones.

 

[mckutzy]

You will most likely need to move the motor over a bit to make your sheives line up, when you install the TC....

 

[Holmeswilliam86]

So I've been thinking, what if I cut the axel off and completely flip it so I can eliminate the need for the middle drive assembly. This way all I should need is a clutch as the axle already has a hub sprocket? Do you guys know if would cause any issues? I know there are a ton of carts made this way

 

[mckutzy]

First the cent clutch won't handle the stress for long... You have a big block with reduced shaft, so a smaller clutch is in order...
Secondly... It was designed for use of a TC cause of the tire size, cause a cent clutch can't handle it...
And third there's a reduction it imparts upon the drive train to reduce stress....

 

[OzFab]

I'm thinking there's a bit of confusion here; Holmeswilliam86, please correct me if I'm wrong but, the size of the outer end of the engine shaft is 1" & the jackshaft (below the engine) is 3/4", correct?

 

[Holmeswilliam86]

I'm thinking there's a bit of confusion here; Holmeswilliam86, please correct me if I'm wrong but, the size of the outer end of the engine shaft is 1" & the jackshaft (below the engine) is 3/4", correct?

Yes, and I apologize I'm new into carts so my terminology is all jacked up.

 

[mckutzy]

By the looks of things... Both are 3/4"

 

[qtband]

I don't think that kart would have come with an 11 or 13hp engine on it. Can you make it work? Of course, but you most probably will have to do some kind of fabricating to accomplish the task. Can you weld?
A few more pics of the current set up would help. Also, fill out your location....

 

[Holmeswilliam86]

I'll get some pictures of the whole thing tomorrow. Welding I can do, I went and flipped the axel today. Going to get smaller rear tires this weekend and order a HDclutxh and see what happens.

I am having issues figuring out what chain I need to fit the hub sprocket. The chain that was on there was a 420, but there was a lot of play. I also don't know what chain is stronger. I have more research to do on this aspect.

Side not: I got this frame with two 13 hp engines that run well for under 200 so far I have right at 200 in this and looks like I'll have to put another 100 or so.

 

[Holmeswilliam86]

More to come

 

[Randy H]

You don't absolutely have to use a torque converter. I don't think you will like running just a cent clutch though. What I'm getting at is since your already got the jackshaft setup, use it.

Cent. clutch to jackshaft, jackshaft to axle. It will limit top speed, maybe a good thing with those thrill seeking, no fear speed demons shown in the pic above.

There is a speed calculator on the diygokarts.com home page.

 

[Holmeswilliam86]

Ended up going with the torque converter, should be here by the 15th. Will let everyone know how it goes.