One of my builds. Posting to give ppl ideas and to help others out with their questions.

Jaycee604

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Hey guys, new member. You guys have helped alot, so now its my turn. I will be making some more posts soon. I have three bikes and ive built 6 so far. Feel free to ask questions or drop a suggestion if you want. Mind the pictures Its cold af so i was working in my kitchen haha. Keep on strokin ! 🤣

1985 kuwahara aries 21" frame. Araya rims, sugino crank
66cc (80) slightly ported, windowed piston and reed valve
Aftermarket head
Heavy duty 420 chain 44 tooth sprocket
Ngk spark plug br6hs
High performance magneto
Viper exhaust wrapped with exhaust wrap
Custom see thru magento and clutch cover
Aftermarket air and fuel filter
Custom made chain gaurd
Jet is #72 with the carb tuned to rich
Everything on the bike is original from 1985
Im 200 pounds. Top speed on flat is 51kmh. Steep hills are around 30 to 37kmh
 

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Cisco

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I like the heat wrap on the pipe, but you might want to seal it with high-temp silicone to preserve the wrap and protect the pipe from rust. I also like the windowed mag cover, very cool ;-)
 

Karl Snarl

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Hey guys, new member. You guys have helped alot, so now its my turn. I will be making some more posts soon. I have three bikes and ive built 6 so far. Feel free to ask questions or drop a suggestion if you want. Mind the pictures Its cold af so i was working in my kitchen haha. Keep on strokin ! 🤣

1985 kuwahara aries 21" frame. Araya rims, sugino crank
66cc (80) slightly ported, windowed piston and reed valve
Aftermarket head
Heavy duty 420 chain 44 tooth sprocket
Ngk spark plug br6hs
High performance magneto
Viper exhaust wrapped with exhaust wrap
Custom see thru magento and clutch cover
Aftermarket air and fuel filter
Custom made chain gaurd
Jet is #72 with the carb tuned to rich
Everything on the bike is original from 1985
Im 200 pounds. Top speed on flat is 51kmh. Steep hills are around 30 to 37kmh
If you put a real chamber on it, it would add a lot more power. Those poo poo pipe chambers are for pocket bikes and hit at a very very limited rpm range, and not very hard. I used to use them, then started modding pipes for bikes. A real mz65 I'd the perfect pipe for our 66s. The clones are ok, better than the poo poo chambers. Still lacking a good staged header though.
 

Jaycee604

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If you put a real chamber on it, it would add a lot more power. Those poo poo pipe chambers are for pocket bikes and hit at a very very limited rpm range, and not very hard. I used to use them, then started modding pipes for bikes. A real mz65 I'd the perfect pipe for our 66s. The clones are ok, better than the poo poo chambers. Still lacking a good staged header though
Im using the poo poo pipe because of where i live. I live in the heart of vancouver and these bikes are illegal. Those big chamber ones are way louder but thanks
 

Jaycee604

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One word solution, Muffler. lol :)
Adding on an extension to the mz65s tailpipe? Seems like a whole lot of work and money for a moderate increase in low end. im reading about that kind of exhaust and it improves lower to middle range but not high. Im more interested in high end power and speed on flats. Dont care much for low end
 

Karl Snarl

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Adding on an extension to the mz65s tailpipe? Seems like a whole lot of work and money for a moderate increase in low end. im reading about that kind of exhaust and it improves lower to middle range but not high. Im more interested in high end power and speed on flats. Dont care much for low end
Save the time, get a slip on, they slide right on, turn the screw to clamp it down. Poof done in 2 mins.




Oh and the Mz ( or my KS65) pipe looks real sweet wrapped in fiber wrap. lol
 

Jaycee604

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Save the time, get a slip on, they slide right on, turn the screw to clamp it down. Poof done in 2 mins.

Ah that sounds decent. What would i call that so i can search for it. Also have you tried the mz65 wit a slip on and compared it with the poo poo?
 

Karl Snarl

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I just typed in " Slip on dirt bike muffler", in the search engine on ebay. Threw thousands of different ones at me. I just linked the first one that looked cool.

Oh and make sure the slip on part is the right size. That's really all you have to worry about, inlet diameter clamping ability.
 

Karl Snarl

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I would look for one with fiberglass packing that is replaceable. It's three screws on the tail, and it slides apart, then you replace the packing when you spooge it up. Every year or two, only cost a few bucks for packing, and it makes it way quiet.
 
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