10-03-2024, 07:12 PM | #1 |
Join Date: Aug 2023
Posts: 12
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My 2020 Boom Vader lost 4th gear today
Does anybody have a link to the gears and case gaskets for the 2020 boom vader? My bike lost 4th gear today doing 60 on the highway. It's my daily and I doordash on it and it's my only income so now I can't work until I find the parts and fix it. Please let me know if yall have any link for the gears and gaskets. I've put 10k+ miles on this thing in the last year and a half and I've fixed and replaced and upgraded everything on it including a new gas tank today after dealing with a year of it leaking. Thanks for real I need help yall.
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10-03-2024, 09:45 PM | #2 |
Join Date: May 2018
Posts: 1,654
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With that mileage I wouldn’t bother doing the tranny ,a brand new engine is pretty cheap and can be swapped in an hour or two .You can even upgrade to a bigger engine if you wish .
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10-03-2024, 10:58 PM | #3 |
Join Date: Aug 2009
Posts: 577
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Try reaching out to Pete at Kronik Racing he is the Boom Vader guru
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10-03-2024, 11:27 PM | #4 |
Join Date: Aug 2023
Posts: 12
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I will swap when I can, but right now I can't afford to, I need the gears so I can go back to work.
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10-03-2024, 11:28 PM | #5 | |
Join Date: Aug 2023
Posts: 12
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Quote:
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10-04-2024, 01:15 AM | #6 | |
Join Date: Aug 2013
Location: FL
Posts: 372
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Quote:
If you rebuild your transmission, it'll take lots of difficulty possibility of things going wrong, and time. In the 2+ days you'll probably need to fix this, you can install the new engine and be earning. Don't tell me you can't make $100 a day. And a new engine will last you a lot longer than a rebuilt transmission. |
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10-04-2024, 02:43 AM | #7 | |
Join Date: Aug 2023
Posts: 12
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Quote:
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10-04-2024, 08:43 AM | #8 |
Join Date: Sep 2021
Location: De Soto, MO
Posts: 1,977
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Any chance of changing your sprockets so that 3rd gear becomes like 4th gear?
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10-04-2024, 08:49 AM | #9 |
Join Date: May 2018
Posts: 1,654
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Over 10k miles on a Chinese pit bike engine and the tranny shit the bed ,if you tore it apart you might be able to fix the actual gear problem easy enough instead of replacing everything ,but financially and time wise it’s an unwise decision .You have already got more than the expected life out of that engine ,everything is now worn out and if tranny metal went through it and made it even worse ,you would need to replace everything to make it reliable again .
For $100.00 ,find a usable used engine ,and get one of those new engines out of your cart and into your hands asap . |
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10-04-2024, 11:25 AM | #10 |
Join Date: Aug 2023
Posts: 12
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I have 17/30 setup and 3rd gear gets it up to almost 50 but that's in the red line. I'd have to go up to 18 or 19 on the front bc there's no smaller rear that I know of. I had a 16 on the front when 4th gave out but I switched it back to the 17 bc I know that will stretch 3rd gear out to go faster.
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10-04-2024, 12:53 PM | #11 |
Join Date: Sep 2014
Posts: 1,930
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What are the symptoms? Could be something simple like the shift drum indexer.
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10-06-2024, 06:20 PM | #12 |
Join Date: Aug 2023
Posts: 12
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First, second, and third gear all work just fine, but 4th gear just free spins like neutral.
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10-07-2024, 10:00 AM | #13 |
Join Date: Jun 2021
Posts: 255
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4-speed manual gear assembly are available on Amazon and Ali Express. I replaced my clutch pack and transmission when I upgraded to a 141bbk after I threw my bike through a loop. Both of these items came from Amazon.
Transmission https://www.amazon.com/gp/aw/d/B01E8...b_b_asin_title Clutch pack https://www.amazon.com/gp/aw/d/B00UJ...b_b_asin_title Fixing what you have is good option if you don't have room for a spare engine. It worked for me.
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2020 Vader X-Pro X-7 2019 Kawasaki Ninja ex400 2022 Lifan KPX 250 |
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10-07-2024, 04:25 PM | #15 |
Join Date: Jun 2021
Posts: 255
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No worries, hope this info helps. Don't forget to inspect your clutch mechanism at the handle bars and case. As for gaskets, those can also be found on the same places. Generally the gray gaskets are for 125cc and under. Green gaskets are for yx140. Make sure to pick up a couple sets in case one rips.
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2020 Vader X-Pro X-7 2019 Kawasaki Ninja ex400 2022 Lifan KPX 250 |
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Tags |
2020, boom vader, gaskets, gears |
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