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809 runs strong then falls on it face??Help

R
Jan 2, 2008
336
6
18
50
Trying to sell this sled, took it out for a test run. it's a 809 in a kingcat chassis. Starts good, idles fine. Hit the gas, pulls hard for a few seconds then falls on it's face. Let off the gas for a few seconds and hit it again same thing all day. Can't tell if it's a fuel problem or electical. Please help....thanks

Does this motor need a high volume fuel pump?? It has a standard 3 cylinder one now..
 
S

Skidoohmx

Member
Nov 26, 2007
154
7
18
Deary, Idaho
What does the motor run for rpm's? The Jaws pipes like around 9200. If it pulls it then drops way back on r's it will be a dog. Could be alot of things in fuel or clutching.
 
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