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chris
2025-08-16 16:30:43
I had blown my last motor up. So, when I finally got a new one, I decided to try the high compression headTons of different videos on YouTube so I figured it didn't matter which one. So, I got this one really looks nice and its heavy. My neighbors said if it doesn't work, he'd like to buy a for a heat sink on some electrical projects he is working on. First thing I did was install it wrong as you can see in some of the pictures the cooling vents are blocking the wind. The head got really hot. I realized my mistake and flipped it into the right direction which made a huge difference in the heating. And the speed of the bike.I also torque the head bolts 20 pounds which is a lot higher than what everybody else tells you to do.I started off 12 pounds and every time I rode and gut off the bike, I could see that it was leaking fuel from the head gasketLoosening up. So, I added an extra pounds each time I rode the bike. 20 pounds seemed to stop it from loosening upAnd the bike seemed to run better because there was no gasket leaking. It's worth the money
Ben
2025-04-28 15:00:29
It was the wronge size for 80 cc motor
Steven
2025-04-21 12:21:38
I purchased this item as most know it's use for the Chinese bike engine. I initially ordered the silver one but wrote the supplier at the last minute and requested a red one instead. I didn't hear back but received a red one. Great quality, I have formal automotive schooling and can easily tell junk, knock offs, or just plain poor quality. These are of thick higher quality metal with great surface to air ratio equaling a cooler running engine. I also like the combination chamber configuration as it allows you to run different style spark plugs that extend further into the chamber to improve spark performance. With this center design, high octane fuel and a some what hot plug you will get a much more efficient ignition of the fuel. Remember to only run Marine fuel/ ethanol free/ 100% gasoline if possible for best performance and 2srtoke engine life.
R34L 1
2025-04-07 16:32:43
Great poo
RLD
2025-03-23 12:07:06
Works how I wanted!
Is this supposed to look this way after 5 miles
2025-02-19 13:12:49
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