barneyblue Posted December 6, 2013 Share Posted December 6, 2013 Went out yesterday to retune my Blackout and after a few decent runs cut-out so started back up ran for a few then died again. After some head scratching and checking found the choke lever to be extremely loose so that the vibration of running would close it. How can i tighten it back up as i cant see anyway or is it new carb time. Cheers B Quote Link to comment Share on other sites More sharing options...
Nitroholic Posted December 6, 2013 Share Posted December 6, 2013 If your carb is a clone one...then now would be a good time to swap it for a Walbro 668. Quote Link to comment Share on other sites More sharing options...
carsonkev Posted December 6, 2013 Share Posted December 6, 2013 I'd replace the carb don't think there's any way of tightening it as it's a shaft that sits in the carb it's warn out chances are it's sucking air in around the shaft too What engine is it on I know some of the guys have problems with km carbs Quote Link to comment Share on other sites More sharing options...
barneyblue Posted December 6, 2013 Author Share Posted December 6, 2013 Its the standard engine on the blackout so i guess its just a clone carb. Ah well looks like im getting a new carb. B Quote Link to comment Share on other sites More sharing options...
Rover Man Posted December 6, 2013 Share Posted December 6, 2013 More to the point is the ball bearing and spring that hold the choke open/closed still there ??? Otherwise it can get sucked into engine and that will be the end of that Quote Link to comment Share on other sites More sharing options...
Rover Man Posted December 6, 2013 Share Posted December 6, 2013 Or remove the choke and thread lock a grub screw in the hole job done. Always used to do this with mine but just use 990's now so no choke to worry about 1 Quote Link to comment Share on other sites More sharing options...
barneyblue Posted December 7, 2013 Author Share Posted December 7, 2013 There is no ball bearing and spring that i can see and the engine still runs so dont think its been eaten. Gonna have a look in the morning and try a few things until a new carb comes. B Quote Link to comment Share on other sites More sharing options...
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