62t motor carb settings

[Skimour]

I have a stock 62t dual carb motor with a b pipe. Does anyone have this set up and have carb settings off the top of their head? I feel like I can't get any low end out of this. The quick throttle response isn't there. Currently my jets are way to big. Any help would be appreciated!

 

[ChadGnarly]

Which dual carbs do u have?

 

[Mdavies_02]

http://www.x-h2o.com/index.php?threads/carburetor-specs-database-superjet-and-blaster-1.19403/

Start reading and comparing

 

[Skimour]

Stock carbs from a wave raider. I will read right now

 

[Skimour]

I will be reading a while. Pop off pressure is really hitting me now. My low end is what sucks but still it runs good

 

[Blue]

Dual 38mm carbs are simple with a B pipe.
75 pilot jet
135 main jet
90 gram spring
1 turn low needle 1 1/2 turn on high needle to start usually end up perfect at 1 1/4 on high needle.
Thats with stock air box.

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[Skimour]

I have blowion filters but i will check what my current settings are. Filters shouldn't change anything too much

 

[Skimour]

Factory pipe repcmmends 95 gram spring. Will I notice a difference between 90 and 95?

 

[Blue]

90 will be too lean and could cause it to free rev when you jump out of the water especially with aftermarket flame arresters

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[Vumad]

I have a limited 718, 170 psi, mod pipe, MSD enhancer, lightened flywheel, dual fiber reeds, reed stuffers, stock airbox with 2 screens instead of 3, 9/17 concord, stock nozzle.

I'm sitting at 18-20 psi, 75 low, 140 high and my ski rips from bottom to top.

 

[Vumad]

Factory pipe repcmmends 95 gram spring. Will I notice a difference between 90 and 95?

115, 95, 80 and 65. There is no 90 gram spring.

Read this a few times. Once you think you've got it, read it a few more. It's never quite working the way we think it is.
http://www.mikuni.com/pdf/sbn_manual.pdf

Tuning a carb is not black and white or a science. It's a practice in patience.

 

[Blue]

We were talking jet size not spring size

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[MADMAT]

61 x cylinders, right?

 

[Blue]

Yes but a ported 62t with 38mm carbs will work with the same set up or maybe one size bigger main jet

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[Blue]

Ok sorry for the mix up. My bad... I got a cold and the meds are affecting me.. lol
75 pilot jet
135 main jet
95 gram spring work best for a B pipe. We use the same set up with our ported topends but with a bigger main such as a 140 main jet and our small motors and big bores even go up to a 142.5 or a 145 msin jet. Sorry for the confusion.

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[kevbo]

I have a stock 62t dual carb motor with a b pipe. Does anyone have this set up and have carb settings off the top of their head? I feel like I can't get any low end out of this. The quick throttle response isn't there. Currently my jets are way to big. Any help would be appreciated!

Are you sure its not over loaded.

 

[Skimour]

I just used the setting off of factory pipes website and i got a lot better results. I had the wrong pop off spring in there