@locusthillclassics: 1977 Yamaha TT500 with megacycle cam and springs, Wiseco piston and Mikuni carb. I use this bike for vintage motocross and flat track. I have suspension and wheels for both. #yamaha #dyno #motorcycle #motocross #vmx

speedwagon
speedwagon
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Region: US
Tuesday 25 November 2025 00:14:41 GMT
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doinitfordale1776
Brian :
Love these dynojet videos putting people in check on their crazy claimed hp numbers
2025-11-25 05:02:51
8
dadtrying2
mikey :
that's awesome I'd love to put our flat track bike on we have a few in Cheney engineering frames and use the Honda ascot and xr 500 motors. mega cycle cam pretty much same set up mikuni 38-40mm I just wondered what the difference between the 2valve Yamaha 500 and the Honda 4valve set up similar. awesome videos I just started seeing them and haven't watched the rest yet. getting ready to lol
2025-11-27 02:55:49
0
richardbrown3446
Richard Brown :
only 32 hp 😯🤔
2025-11-25 00:36:58
0
lucabrazzi7
Luca Brazzi :
I have the 79 XT500
2025-11-27 00:35:21
1
chrisrvingfishingman
chrisr47478 :
Great power out of her !
2025-11-25 14:34:37
1
bigjmill
AutoTechMiller :
love the sound of that one
2025-11-26 12:45:00
0
big_daddy_2929
Big Daddy :
Impressive 🤟
2025-12-08 13:54:22
1
atticusosullivan
atticus o sullivan :
I love these I like to guess how much horsepower it’s making by the sound of the motor. I’ve been pretty damn close each time.
2025-11-26 22:03:22
0
jamesmanske419
jamesmanske419 :
Great bike
2025-11-25 01:00:29
0
fredr1000
FRED :
👍
2025-11-25 17:15:47
0
fredr1000
FRED :
💯
2025-11-25 17:15:47
0
michael196758
Michael ❌ :
how about a old 490 yam? got one of those laying around?
2025-12-08 16:32:40
0
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