Silverbird2 Posted June 20, 2013 Share Posted June 20, 2013 I installed a jet kit and float bowl in the dirtbike and stripped one of the carb body threads that hold the float bowl screw. Should I Helicoil it or tap for a larger screw? Quote Link to comment Share on other sites More sharing options...
The Krypt Keeper Posted June 20, 2013 Share Posted June 20, 2013 if you have enough meat around the hole, I would just drill it out and retap it for a larger screw if you already have a tap set handy. now if you never tapped alum, let me just save you the pain and tell you now to get alum cutting oil for tap and die. otherwise the alum will ball up on the tap and you will hate yourself. heli is nice but drill and tap with another screw works just fine. I might suggest taking some paint/fingernail polish or whatever and marking the new screw head and that ear on the carb to make sure you don't accidently try to sink the larger screw into one of the others. Quote Link to comment Share on other sites More sharing options...
TuffguyF4i Posted June 20, 2013 Share Posted June 20, 2013 ^thats all the advice you should need. Quote Link to comment Share on other sites More sharing options...
Silverbird2 Posted June 21, 2013 Author Share Posted June 21, 2013 Great advise! I've heard kerosene is the thing to use when tapping aluminium. Do you think the tapped hole will hold as good as a helicoil would? Quote Link to comment Share on other sites More sharing options...
The Krypt Keeper Posted June 21, 2013 Share Posted June 21, 2013 75 - 80% kero and 20 -25% mineral oil mixed I have heard of by not straight kero. you can try it and see though, but take your time to allow the tap to work while cutting alum. The oem holes for the float were tapped, so the new hole if done correct will be just as good as the oem hole but just a size larger. baby steps when tapping alum.. little in and back out, little in and back out over and over... very easy to strip the threads out if in a rush. Quote Link to comment Share on other sites More sharing options...
jon haney Posted June 21, 2013 Share Posted June 21, 2013 BABY STEPS? Ha, you might as well ask Jeff to cut off a testicle. Wait, that might actually work. :icon_think: Quote Link to comment Share on other sites More sharing options...
IcePrick Posted June 21, 2013 Share Posted June 21, 2013 Hilti gun. Quote Link to comment Share on other sites More sharing options...
Silverbird2 Posted June 21, 2013 Author Share Posted June 21, 2013 Got the Heli Coil kit but dont have any special tools for tapping or installing the Heli Coil. Most videos I've seen they are using a tap handle and a tool for inserting the Heli Coil. Maybe it is in the kit but I had it open to see if there was a drill bit (which there wasnt). I had to get the drill bit seperately. The package contained a tap, some kind of black tool and the inserts. I guess I will learn more when i get home. Quote Link to comment Share on other sites More sharing options...
The Krypt Keeper Posted June 23, 2013 Share Posted June 23, 2013 So? How it go? Not on bike bandit ordering a new carb are you? Quote Link to comment Share on other sites More sharing options...
Silverbird2 Posted June 24, 2013 Author Share Posted June 24, 2013 Went great! Got it in no problem. Much easier than expected. Getting the hole drilled straight was the hardest part. I stayed up till 2am Friday night putting her all back together and rode with two buddies at 7am Saturday morning. The new jet kit did wonders. Completely different bike. Quote Link to comment Share on other sites More sharing options...
blackhawkxx Posted June 24, 2013 Share Posted June 24, 2013 The new jet kit did wonders. Completely different bike. Takes that flat spot out, right? Quote Link to comment Share on other sites More sharing options...
The Krypt Keeper Posted June 25, 2013 Share Posted June 25, 2013 Went great! Got it in no problem. Much easier than expected. Getting the hole drilled straight was the hardest part. I stayed up till 2am Friday night putting her all back together and rode with two buddies at 7am Saturday morning. The new jet kit did wonders. Completely different bike. glad it worked out for you, getting the hole lined up right is a problem for many people. just make a quick jig or use the force. Quote Link to comment Share on other sites More sharing options...
Silverbird2 Posted June 25, 2013 Author Share Posted June 25, 2013 It was definately the force in this case. The new jet kit did wonders. Completely different bike. Takes that flat spot out, right? Exactly! Pulled hard in every gear and every throttle position. Much quicker resoponse as well. Not to mention it made the bike run cooler. Quote Link to comment Share on other sites More sharing options...
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