So I've never rejetted my carb, and don't know the jetting in it. I've always gotten it to run right by just messing with the adjustment screws. I bumped the compression and simultaneously moved states for school so had an elevation change and the ski isn't running very well, so I think it's time to properly tune the carb and do a rebuild.
I mostly ride around 4300ft elevation. Mikuni 44sbn carb, west coast intake manifold, (unknown brand) high compression head further milled to 190psi, and a factory pipe. If it matters I also have nitrous oxide, though it's a wet setup so provides it's own additional fuel and it only gets activated at WOT when I want to use it.
As said, all the "tuning" I've ever done was to mess with the screws and I felt like I could always get the carb dialed that way--I presume that's an incorrect way to tune it but if I don't have to rejet and messing with the screws is fine that'd be awesome. We have another 650 that has a 44bn and all we do is adjust the screws on that and it runs like a champ at this elevation and before at 5500+, that's why I'm curious if I actually need to rejet. I've been reading through the sbn manual: http://www.mikuni.com/pdf/sbn_manual.pdf Is rejetting easy, as in can it be done in the parking lot or on the beach? It looks like you need to open the carb up quite a bit to get to the jets, which seems like it would make tuning take even longer than it already does...
Thanks for any advice.
I mostly ride around 4300ft elevation. Mikuni 44sbn carb, west coast intake manifold, (unknown brand) high compression head further milled to 190psi, and a factory pipe. If it matters I also have nitrous oxide, though it's a wet setup so provides it's own additional fuel and it only gets activated at WOT when I want to use it.
As said, all the "tuning" I've ever done was to mess with the screws and I felt like I could always get the carb dialed that way--I presume that's an incorrect way to tune it but if I don't have to rejet and messing with the screws is fine that'd be awesome. We have another 650 that has a 44bn and all we do is adjust the screws on that and it runs like a champ at this elevation and before at 5500+, that's why I'm curious if I actually need to rejet. I've been reading through the sbn manual: http://www.mikuni.com/pdf/sbn_manual.pdf Is rejetting easy, as in can it be done in the parking lot or on the beach? It looks like you need to open the carb up quite a bit to get to the jets, which seems like it would make tuning take even longer than it already does...
Thanks for any advice.