Motovox Predator 212cc Build. Original Tank Modded To Work. Vibration Issue Fixed!!

#1
Here is my motovox mbx10 build.
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Perfect spot for the gas fill!!!
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New seat. Old one was cracked.
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All new controls Including Hydraulic Brakes.
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Here is how I modded the original tank to work. All I did was bend the original mounting brackets 90 degrees and bolted them to a old scrap piece of aluminum from a old ladder rack.
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Here is a better view of the bracket I used to mount the tank. I also used another bracket to tie the back of the bracket to the original tank mounting hole. Rock solid!!
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Another problem I ran into was the bike had way too much torque with the original 75 tooth sprocket so I purchased a boodle bug rear sprocket adapter from OldMiniBikes Warehouse & installed a 58 tooth sprocket. A lot better now!!
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Doesn't look too bad does it?
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Thanks hotrodminibike.com for a lot of the parts I used on this build including the rear hydraulic brake.
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Looking good!!
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Sweeet!!
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Here is what I did to fix my last issue, and that was the vibration problem. It was so bad you could not ride it for longer than 20 minutes!
What you see is 3 layers of 1/8 inch hard rubber I sandwiched between my adjustable motor mount and the frame. This has completely eliminated the vibration.
I tried a vibration kit from OldMiniBikes and it made it worse than it was with the motor mounted directly on the frame.
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#4
Looks good. I'd like to try that anti vibe setup on my CT200. Where did you get the rubber sheets?
I got it from lowes department store.
PP25547
Rubber Packing Sheet
6X6X8X1/8.
31448.

I tried several different types of rubber and this was the only stuff I could find that was hard enough.
Most of it including the kit I bought from OldMiniBikes warehouse was too soft. As you torqued down the bolts the rubber would squash and loosen the chain.
That did not happen with the stuff I got from lowes.
Cut them the same size as the bottom of the motor & glue them together with contact cement.
At first I tried 2 layers because I could not raise the motor any farther. It was pretty good with 2 layers.
When I put the smaller gas tank on I added another 1/8 inch layer & the 3rd layer almost totally eliminated the vibration.
 
#5
Bike looks good! Is that the OldMiniBikes under seat header you have there?
No I got that from hotrodminibike.com.
It was designed for the motovox to go under the seat.
It has a rlv silencer.
I was going to pick one up from OldMiniBikes but I did not know if they had a under the seat header that fit the motovox.
Hotrodminibike.com advertised it a motovox compatible and showed pictures of it on a motovox.
If OldMiniBikes warehouse did that so I would of knew for sure that it would work I would of purchased it from OldMiniBikes.
 
#6
Thanks for letting me know these rubber sheets are available at Lowes. Found it on their website by the part number you provided. I might only add I'm going to use locknuts as I think the nuts "could" work loose with just lock washers. Thanks!
 
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