72cc Rebuild

This is the place to discuss your build with other builders and solicit feedback and help with parts of your build: engine, body work, bolt ons, etc.

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Justinmarldizah
BMX
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72cc Rebuild

Post by Justinmarldizah »

Rebuilding my moto

Dd50 block ported
Stock crank, 1500 center springs and yellow clutch springs, sef ramp, kelly pulley, runnin 6.5 and 7 weights, rrgs pipe, big teeth belt, corsa ported. Only runnin one metal gasket and a head gasket.

Any suggestions? Looking for top end. Should i put 2000 center springs?
Meloshameless
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Re: 72cc Rebuild

Post by Meloshameless »

Head gasket? I used the metal gasket on the bottom and green rubber ring for the head, basically stuff that came in the corsa kit. No need to use anything extra on the head with a stock crank. That'll lower ur compression.
2000 Honda SR (purple swurp)
corsa
naruku
polini 21 cp 36/106 pod filter
polini vari 5.5 gram
zx trans
Polini evo2 clutch/bell yellow springs (slacked) yellow contra
Yasuni C16
stock crank/gears=wheelie machine
70 mph/12,470 rpm Trail tech vapor verified
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Wheelman-111
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Re: 72cc Rebuild

Post by Wheelman-111 »

Greetings:

The first thing I do after assembling a block is to measure compression. 140PSI can survive pump Premium fuel. Much more and you need higher octane.
The next thing to do is to perform a check of all the gasket seals with soapy water, looking for bubbles.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
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