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Old 02-16-2014, 11:17 PM   #3
mmsscooters   mmsscooters is offline
 
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Join Date: Feb 2014
Location: las vegas
Posts: 100
For the scrappy dog +4 crank you need 1.3mm spacing under the cylinder to avoid the piston hitting the valves. I have found that 4 of their base gaskets are perfect spacing. Im still trying to find the perfect jet size for the +4 and the 50mm bbk. With the crank and the 47mm an 88 jet works great. Depending on altitude



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