Blackjack carbs
- Thread starter jetpilot08
- Start date
I ran one of the early model (non painted) ones last year as a single on a ported 62t760 and a nonported 61x701 and it was awesome. Running two newer model ones on my 66E and they are also awesome.
Mine was painted black. I bought it in early 2006 from Blowsion. I used it on several engines with the same jetting and it always ran great. I had some trouble initially before I realized that it needed a return line restrictor. I could get it to run without that with much fatter jetting, but bottom end was not there. Top end was awesome, though. Once I put a #60 restrictor in, jetting went down considerably and it ran great everywhere.
There wasn't much difference between that carb and a 48 Full Spectrum.
Unfortunately, there also wasn't much difference between either of those and a simple 46 SBN.
I guess that's not a dig at the PB and FS, but rather a thumbs up to the 46 SBN.
Of all carbs I've run, I am happiest with my current setup, though: dual 46 BlackJacks.
It helps that they were tuned by the guy building the rest of my driveline.
There wasn't much difference between that carb and a 48 Full Spectrum.
Unfortunately, there also wasn't much difference between either of those and a simple 46 SBN.
I guess that's not a dig at the PB and FS, but rather a thumbs up to the 46 SBN.
Of all carbs I've run, I am happiest with my current setup, though: dual 46 BlackJacks.
It helps that they were tuned by the guy building the rest of my driveline.
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- Location
- Corinth, TX
Really? I got a used set of 48mm BJ's with a ski I bought and Art has been way more helpful that I could have expected. He even e-mailed me back after a few weeks to make sure his suggestions were working for me.
Yeah, this information is second hand obviously but he was struggling with them all last season.
- Location
- Corinth, TX
That sucks. Is he certain it is a carb issue? I thought I had a problem with my novi's, but turns out I was too inept to connect my water lines on my exhaust correctly (R&D wet pipe without water injection at the time).
jetski9010
Team RTYD
- Location
- Lancaster PA
I was having the same problem when I bought a used 44 blackjack that the guy said "just came back from being rebuilt by jetworks". I kept having problems trying to tune it and I had talked to art several times about jetting and the specs he was giving me was not working. I finally just sent the carb to him to look at and it was all messed up. He was telling me some of the gaskets and etc were the wrong ones and the rubber was all expanded. He rebuilt the carb and now it rips. This is why I shy away from buying used carbs now. I paid $175 for a used 44 blackjack and it took me 6 trips to the lake and the price to overhaul the carb to fix it when art sells them brand new for around $299 jetted for your ski.
Here are the ones i have. The best i ever got them still had a hesitation off throttle. i gave up on them awhile ago just paper weights now. i'm running stock 44's and the ski runs great. might upgrade to blackjacks when i finish the other ski. Blowsion said the powerbombs were good carbs and could tune them for me but i've been happy with the 44's so i haven't bothered. Yamanube how do you have them jetted?
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2 days is pretty good i forget what i did 2 hours ago!
crashski
X
- Location
- Pacific City Or
Yeah my SBN 44'S have an internal restrictor also. Tim you riding this weekend?