I just got two Grubee SkyHawk 2010 66cc kits, one kit had a yellowish plastic carb gasket that was extremely brittle and broke almost immediately. The second kit had a plastic gasket that was more white and you could kinda see through it, that one doesn't seem as brittle and might be ok. Why two kits purchased together and manufactured on the same day have different parts I have no idea... Anyways....
I just got done making a new CNS carb gasket out of a piece of PVC tubing. I used 3/4" white PVC tubing (plastic water pipe), which when compared to the intake will seem a bit too large, at first glance. At second inspection I see the thickness of the material is almost perfect, this got me thinking...
I cut a section to the proper width, filed it flat to exact size, then cut a slice in it (like the original part). I then took a flat file and widened this opening until when squeezed (closing the gap) I could fit it into the CNS carb with a similar gap remaining as the original part. The gap in the new gasket was about 8mm wide when I was done, but reduced when compressed and inserted in the carb. The part looks a little bigger than the original, but when compressed it ends up the same.
I tried to fit the carb on the intake, couldn't quite get it on, so I pulled out the gasket and used sandpaper to thin it down on the outside until it fit. I can't comment about how it performs yet cause it's late and I won't be able to test it until tomorrow. I have to say I predict success, cause in the end it seems to be just like the original part, except not brittle and just waiting to crack! LOL
This new gasket is super strong, no way I could crack it with bare hands. And talk about cheap, I found the tubing laying around in the basement, at home depot a whole stick of tubing is only a couple bucks or less. I used some basic tools for the job, hack saw, vise, flat file, 150 grit sandpaper, that's about it. Only took a couple minutes to make, but take your time, widen the gap slowly and thin down the outer diameter with sandpaper in steps so you don't go to far. Worst case scenario is you have to start over, I guess you could try about 1,000 times with one stick of tubing!
I just got done making a new CNS carb gasket out of a piece of PVC tubing. I used 3/4" white PVC tubing (plastic water pipe), which when compared to the intake will seem a bit too large, at first glance. At second inspection I see the thickness of the material is almost perfect, this got me thinking...
I cut a section to the proper width, filed it flat to exact size, then cut a slice in it (like the original part). I then took a flat file and widened this opening until when squeezed (closing the gap) I could fit it into the CNS carb with a similar gap remaining as the original part. The gap in the new gasket was about 8mm wide when I was done, but reduced when compressed and inserted in the carb. The part looks a little bigger than the original, but when compressed it ends up the same.
I tried to fit the carb on the intake, couldn't quite get it on, so I pulled out the gasket and used sandpaper to thin it down on the outside until it fit. I can't comment about how it performs yet cause it's late and I won't be able to test it until tomorrow. I have to say I predict success, cause in the end it seems to be just like the original part, except not brittle and just waiting to crack! LOL
This new gasket is super strong, no way I could crack it with bare hands. And talk about cheap, I found the tubing laying around in the basement, at home depot a whole stick of tubing is only a couple bucks or less. I used some basic tools for the job, hack saw, vise, flat file, 150 grit sandpaper, that's about it. Only took a couple minutes to make, but take your time, widen the gap slowly and thin down the outer diameter with sandpaper in steps so you don't go to far. Worst case scenario is you have to start over, I guess you could try about 1,000 times with one stick of tubing!
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