so will a 46 mikuni be much better than a single 44?

[demolition_x]

what is the verdict on this set up? worth getting a 46, would it be a big difference than a single 44?, both with the stock x intake

need some opinions.

 

[djyox]

I would be interested to know as well...

I was thinking it might not be a bad idea for a 46 or 48 rather than going duals...

 

[demolition_x]

id rather have one carb instead of 2 as of now.

 

[Matt_E]

Chuckie (TeamScream) has stated that the SBN 46 is a great out-of-the-box carb.

Me, I am currently putting a motor together with a single 48 Riva on X cases, stock manifold.

 

[Rickster]

Myself, SFLSurfrider and Waterfreak all run single 48 mikuni's in our skis.

I noticed a big difference coming from a single 44, and with the simplicity of the setup, coupled with the small gains you get from dual 38's/44's, I will stick with the 48's on my skis.:biggthumpup:

 

[cookerq62]

I just picked up a brand new 46 on ebay for $70 I need to hog out the holes so I can make it fit. Does any one know what the jetting differences are between a 46 and a 44??? Bigger? Smaller?

 

[demolition_x]

i picked up the same one. he is sending the tuner book with it, well thats what he said in the auction atleast. did you get yours yet?

 

[h4ppyh4nds]

I received my carb today. Didn't have the tuning guide with it. I will have to email him and see if he can send it electronically. Really good shape.


David

 

[Matt_E]

Guys, guys, guys. You're disappointed you didn't get the Tuning Manual???

 

[michaelart]

Nice.....thanks Matt.....question I have is since they are wetjet 46mm, would it be feasible to do a dual setup with them (tolerance and spec wise)?

 

[douglee25]

I would think the jetting should be very similar to that of the 44mm mikuni.

Doug

 

[yama_freak615]

im running a single 46

and love it

 

[Matt_E]

Nice.....thanks Matt.....question I have is since they are wetjet 46mm, would it be feasible to do a dual setup with them (tolerance and spec wise)?

I was under the impression the bolt spacing is different from other Mikuni SBN's.

I would make sure that the popoff is identical between the two.

 

[cookerq62]

just pulled it appart to check the jetting

150 high
102.5 low?!
1.5n&s and a black spring

I know the 46 is supposed to pull better on the low (per group k), but a 102.5?

This carb was brand new there was still white grease around the shaft on the inside and no gas in the resevoir. There is a 3rd hole in the carb that you can screw a low jet into next to the regular low jet.

 

[Mile9c1]

jus There is a 3rd hole in the carb that you can screw a low jet into next to the regular low jet.

Post a pic. I've had a WetJet 46 before, and I seem to remember it didn't have a hole for a 3rd jet. I wonder if these carbs were test carbs that have been modified.

 

[YAMA CAT]

Well guys I just upgraded my single 44 mikuni to a 46 black jack I bought from nikad. It seemed to improve for the moment I rode the ski. The boys just got through rejetting it and tweaking it for the second time. My husband took it for a test run and my driveshaft stripped out. :banghead: :banghead:

Once I replace the driveshaft I will let you know.

 

[demolition_x]

Post a pic. I've had a WetJet 46 before, and I seem to remember it didn't have a hole for a 3rd jet. I wonder if these carbs were test carbs that have been modified.

i think when i searched for info on this some one stated there was a 3rd jet. i forgot where i found that though

 

[YAMA CAT]

I believe my carb took 130 high and 130 low.

 

[adet16v]

I was under the impression the bolt spacing is different from other Mikuni SBN's.

thats correct. the spacing is slightly wider between the bolt holes at the base of the carb to accomadate a different manifold. You can egg them out probably roughly 1/8" or 3/16" each in order for them to match up to the 44mm mikuni manifolds.

I picked up one of the 46ers on ebay as well. Same story, appears to be brand new, havent pulled it apart to check the jetting yet.

 

[romack991]

will a straight aftermarket mikuni have the right bolt spacing? I know the wetjet spacing is wider but I thought the regular aftermarket carb would have the same spacing as a 44. I guess I'll see, I just bought one.