Search results

More Pics

Battery box, aluminum construction 7.00" x 4.25". Looks like stock superjet mounting. Not sure of the brand. $50 shipped Fiberglass superjet gas tank cradle. $80 shipped Located in Spring Lake, MI 49456

that's the exact one I have, using bike chain and the 9 tooth sprocket. https://www.x-h2o.com/threads/turned-my-beach-cart-into-a-tesla.206506/

I am using variable speed controllers, but I'd like to have a bit more torque at the wheels at full throttle and take some of the stress off the batteries. The motors are supposed to pull 18 amps each, and from my reading the 10ah sla batteries can tolerate 31amps for 7 minutes, 21 amps for 30...

My current gear reduction has the top speed at 3.1mph, which is a brisk walk especially walking in the sand. Ideally I'd like it around 2-2.5mph and drop the amperage down, but the cost of larger sprockets is about the same as a second set of batteries so it would be easier to have a charged...

I was able to use my electric cart for a full day of moving skis. Using google maps for beach distance I was able to go 0.4 miles before I noticed a slowdown on speed. The beach has a gentle slope, usually takes 2-3 guys to push a ski back up the beach. My current setup is lightweight so my...

2.0 needle/seat with 80 or 95 gram spring to get you 20-25psi popoff. 125 pilot, 110 main. 1 turn out on low and high screws. depending on how well your cases/ports flow at low speed you might need to lean out the low speed jet.

https://highspeedind.com/products/h-s-i-kart-tank-2-25-gallons Small Kart Style 2.25 Gallon Fuel Tank / Cell. Dimensions: 12" L x 7" W x 12" H.

Rims: https://www.surpluscenter.com/Wheels/Spindles-Wheel-Hubs-Bearings/Wheel-Rims/8-x5-5-Steel-Wheel-Rim-3-4-Bore-w-Bearings-1-5079.axd tires: https://www.ebay.com/itm/304097410727 tubes: https://www.ebay.com/itm/274820359220 axle: 3/4" stainless tube, 1/8" wall u-bolts for axle...

I have a couple models that are specific to my volume, squish area and squish. The ada dome cc/psi chart won't work with the stroker crank. I'd suggest 37-40cc to keep your compression below 200psi. I can make you a model that could work but without a cnc mill or lathe it's kind of useless.

I used my cnc machine at work to cut the domes. I'm able to model the domes in cad first to verify the volume before actually cutting. Having a couple sets of 701 domes gives you extra meat to cut away from. I'm not an expert, but I prefer to keep the port timings as close to stock as...

Brand new RRP black throttle lever. sold Couple seasons old superjet tank with cold fusion internal fill. Has some scuffs and a small chunk missing. sold Old superjet tank, deep scuffs. sold Rather not ship the gas tanks. Located in Spring Lake, MI

https://drive.google.com/file/d/1vskmb6H9dq3ndpt5KRdbpfv9NmC0D1dv/view?usp=sharing https://drive.google.com/file/d/191HmVzAZo9ia2mDd2XEnCHLXCicsGYgp/view?usp=sharing If still needed, I've shared in both dwg and step file.

3d printed new battery boxes that put them in a better postion and cleaned up the controllers and wiring. Last thing to add is an on/off switch. The controllers draw 0.063amps at idle. After 8 hours it's only 0.25ah gone, but I'm not one to remember to turn it off when I get back home. I'm...

Cylinders bored at 0.0045" clearance and fresh 85.5mm prox pistons. Ring gap around 0.014". With a thin film of assembly lube the initial cranking compression was at 210psi. The 10cc bump in volume and better sealing made a difference. I machined a second set of domes that are 2.3cc larger...

Popped the topend off for evaluation and to get bored out for 85.5mm pistons. I burned about 100 gallons on the 5mm setup. Piston wash looks typical for reverse jet surf riding. No indication of detonation, no signs of aluminum erosion around the exhaust port edge where I'd expect it. The...

What carbs are you using? I had a jetmaniac 718 with jetted 38's that had a similar effect. Feels like a 125 2 stroke dirtbike powerband. Moving to zeel and dual 44's improved the horsepower under the curve to eliminate the burst of power. Sounds like you need more timing down low and more fuel.

In the sense that it's awd and dual motor. At the end of a typical day on lake michigan, there would be three to six skis that would need to get pulled and pushed back up to the parking lot across the beach. the 4 wheeled ones worked best but still takes two or three people to get it up the...

Currently at 50mm. I can go more if I get the wax manifold and headpipe.