does a spree have a key that holds the flywheel to the shaft? i found a special key for a pocket bike that advances the timing. is this a good idea?
check it out. here it is.
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... eName=WDVW
advanced timing
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1) You could probably machine something to advance the timing on the Spree, but you would need to watch/listen for predetonation. You could blow a rod if it's not set up right. A dyno would be a good way to tune this.
2) Reed valves open when outside pressure exceeds inside pressure. This lets fuel in at the right time, just like intake valves on 4-strokes. Go to the MacDizzy site and look for info there.
2) Reed valves open when outside pressure exceeds inside pressure. This lets fuel in at the right time, just like intake valves on 4-strokes. Go to the MacDizzy site and look for info there.
noiseguy wrote:1) You could probably machine something to advance the timing on the Spree, but you would need to watch/listen for predetonation. You could blow a rod if it's not set up right. A dyno would be a good way to tune this.
2) Reed valves open when outside pressure exceeds inside pressure. This lets fuel in at the right time, just like intake valves on 4-strokes. Go to the MacDizzy site and look for info there.
does a spree have a key like this and would it fit?
- Tippmann98
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