monsterman26 Posted July 30, 2014 Share Posted July 30, 2014 whats the best carb to put into my ported 4 bolt 29cc.....the 813 or the 990? ive noticed the 813 hasnt got a choke....how does that work? Quote Link to comment Share on other sites More sharing options...
(-:AD:-) Posted July 30, 2014 Share Posted July 30, 2014 990 aint got a choke either. Once the primer bulb is full, pull the pull start slowly once or twice (draws fuel in, same as choking) then a pull or few and it will start. I use a 990 on the gizmo rcmk fullmod, its what it comes with from new. Not sure how long it will stay on their as I might get another 771 Ive got a polished 771 on my bzm with the stronger venturi spring and do like this. Quote Link to comment Share on other sites More sharing options...
ant b 4 Posted July 31, 2014 Share Posted July 31, 2014 My Baka and losi both have 990 carbs,just prime a few times then a slow pull then a normal pull Quote Link to comment Share on other sites More sharing options...
mark35 Posted July 31, 2014 Share Posted July 31, 2014 Go with the 990 as the 813 is a pig to tune Quote Link to comment Share on other sites More sharing options...
Sweeney23 Posted July 31, 2014 Share Posted July 31, 2014 Got a 990 and tbh preferred my other carb on my standard zenoah g260rc can't rem what one it is but it has a choke Quote Link to comment Share on other sites More sharing options...
(-:AD:-) Posted July 31, 2014 Share Posted July 31, 2014 Got a 990 and tbh preferred my other carb on my standard zenoah g260rc can't rem what one it is but it has a choke would be a wt-668 Quote Link to comment Share on other sites More sharing options...
jony nitro Posted July 31, 2014 Share Posted July 31, 2014 I always ran a 668 Quote Link to comment Share on other sites More sharing options...
Hawkpalmer Posted August 1, 2014 Share Posted August 1, 2014 813 is supposed to be better for speed runs due to internal accelerator jet but 990 for bashing/track and both for ported/modded engines and a 668 for stock engines but lots use and prefer the 668 You can buy them with mods done to them (bearing mod) ect The 990 is same as the 813 but without the internal accelerator jet Quote Link to comment Share on other sites More sharing options...
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