missing at mid to top end

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R

RC Fan

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indiana
my new rampage got about a half of tank out of it and it is missing acts like its running out of gas tryed new gas cap checked the tourq on the heads they where tite, check the fuel lines for dart call redcat they thought it might be the head gasket the bolts our tight and theres no leakage around the head any suggesten
 
had the samething happen to me..and as rob said,i had to fine tune the high speed needle.It's gonna take 2 to 4 tanks to get it right.
 
i reset the jets didnt change tryed i diffrent gas cap didnt work losen the cap didnt change just was woundering if dairt got into the carb somehow if that would do it
 
did u check the coil air gap use a busnes card to check the gap .or the spark plug gap is 28 thou.
 
checked the coil was good spark plug to still doing it anything come to mind trying to hold off on taring it apart going to spray around the head and carb to look for leakage thanks for all the suggestion
 
Does your fuel pickup line reach all the way to the bottom of the tank divet like it should? Did you check your head bolts? Did you use the stock air filter in extremely dusty conditions? Have you ever had the carb off? Is your spark plug tight and good? Do you have spark? Your sure your tank is venting? Does your fuel line have cracks in it? Is your gas blend correct and fresh?
 
I had i carb from a smartec motor put it on and it runs good the carb must have dart in it.thanks for the help.
 
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