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  #1  
Old 12-06-2015, 09:26 PM
yellowbeard yellowbeard is offline
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Default ninja go cart

Well got another project to start on, Just going to build a fun yard cart, maybe a few light trails. Putting a Kaw. Ninja 250R on it.
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File Type: jpg ninja go cart 005.jpg (94.4 KB, 39 views)
File Type: jpg ninja go cart 001.jpg (92.3 KB, 36 views)
File Type: jpg ninja go cart 002.jpg (92.2 KB, 35 views)
File Type: jpg ninja go cart 004.jpg (98.0 KB, 33 views)
File Type: jpg ninja go cart 003.jpg (94.5 KB, 35 views)
  #2  
Old 12-06-2015, 09:45 PM
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I would guess it's some kind of Yerf Dog frame.
  #3  
Old 12-07-2015, 05:20 PM
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yep, definitely a yd, likely a 3203.
  #4  
Old 12-08-2015, 09:16 PM
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Default Ninja Dog

Fabing up the motor mounts.
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File Type: jpg ninja dog 001.jpg (92.1 KB, 17 views)
File Type: jpg ninja dog 002.jpg (90.3 KB, 16 views)
File Type: jpg ninja dog 003.jpg (97.1 KB, 19 views)
File Type: jpg ninja dog 004.jpg (89.3 KB, 18 views)
  #5  
Old 12-13-2015, 07:34 PM
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got the shifter, clutch handle done. working on jackshaft.
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File Type: jpg shifter 002.jpg (91.7 KB, 18 views)
File Type: jpg shifter 003.jpg (92.5 KB, 16 views)
File Type: jpg shifter 004.jpg (86.8 KB, 16 views)
File Type: jpg shifter 001.jpg (89.7 KB, 19 views)
  #6  
Old 12-14-2015, 06:47 PM
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if you're putting a 250 to that jackshaft with the sprocket that far over you'll definitely want to hang a support bearing on the other end of it.
  #7  
Old 12-14-2015, 08:49 PM
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got that in the plans.
  #8  
Old 12-19-2015, 07:51 PM
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a little more work done. pedals hooked up. motor mounted and shifter done.
  #9  
Old 12-19-2015, 10:39 PM
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if you're test driving at this stage, I advise not to or very gingerly, that pair of front tubes is not going to support much at all. if the welds/front tube crack, the steering wheel will pin you in a rather painful manner .... if you look at the underside, you'll find most of the welds are likely not complete and stop at the 3/4 point around the tube on either side.
  #10  
Old 12-20-2015, 07:15 AM
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have rewelded the steering tubes. not finished with the cage. not test driving it yet. hadn't even wired it up.
  #11  
Old 01-02-2016, 10:08 AM
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Default rad. location

looking for the best location for the radiator. Does it need to be above the engine? front or behind. Have limited space. thanks
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File Type: jpg Ninja Dog update motor mounted 002.jpg (97.1 KB, 11 views)
  #12  
Old 01-02-2016, 01:10 PM
liduno liduno is offline
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You'll want it where it can get good airflow and the cap should be the highest point of the cooling system.

I guess you could put the cap lower as long as when you fill the system it's higher.
  #13  
Old 01-03-2016, 09:40 PM
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got the gas tank mounted, rad. mount. A couple of front bars tacked in place, and the pedals moved in some, also the guage cluster mounted. A long way to go, but getting there.
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File Type: jpg gas tank and rad 001.jpg (88.0 KB, 10 views)
File Type: jpg gas tank and rad 002.jpg (91.8 KB, 12 views)
File Type: jpg gas tank and rad 003.jpg (91.4 KB, 15 views)
File Type: jpg gas tank and rad 004.jpg (92.2 KB, 12 views)
File Type: jpg gas tank and rad 005.jpg (90.9 KB, 14 views)
  #14  
Old 01-11-2016, 04:28 PM
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do you have plans for the front suspension and steering? with that motor, you don't want that front end on it.
  #15  
Old 01-11-2016, 05:53 PM
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I've heard the the Spyder box yerf dog is the one with a bad frontend. Gonna try it and see how it works, if not I have some Yamaha A arms, and hubs.
  #16  
Old 01-11-2016, 09:05 PM
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That is the cheaper (smaller) Yerdog version. 3203 style with the Tecumseh 6.5HP engine. I think it only has like 1" tubing. Got one for my nephews and the tubing cracks really easily.

The Spider box is the larger version with 1 1/4" tubing if I remember correctly? It's frame is much stouter then the version you have there.

I HIGHLY suggest you reinforce the frame if you're going to use that power plant on it.

And yes, that front end is cheap as well. The steering spindle bent easily when driving my nephew and hit a large rock.
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My Yerban assault vehicle: 2.2mm stroker crank, 62mm Nikasil cyl, Taida large vavle head, American made valve springs, ported intake manifold, TM 28mm carb, stock CDI, Bando coil, TK exhaust, stock CVT except for the 14g sliders, 13/40 internal gears, 16T drive, 31T axle sprocket, 22" rear tires, and ONE BIG POTATO CANNON mounted on top..........
  #17  
Old 01-12-2016, 08:43 AM
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Don't even mess with the yerf parts up front. go right to the yamaha parts. You get front brakes, better hubs, better rim and tire choices, better shock selections and will have an easier time finding parts.
  #18  
Old 01-12-2016, 08:44 AM
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also go right to a steering rack. don't even attempt to make pitman style junk work. in that regard, BD's modded spiderbox rack and a yerf extending double jointed column is a good, fairly affordable choice.
  #19  
Old 02-21-2016, 06:29 PM
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got some more done, almost ready for the wiring.
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File Type: jpg both carts 001.jpg (100.2 KB, 18 views)
File Type: jpg both carts 002.jpg (101.0 KB, 17 views)
File Type: jpg both carts 003.jpg (100.6 KB, 14 views)
  #20  
Old 02-21-2016, 09:18 PM
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Lookin good.
 


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