Carb Tuning (dual 44s 64x w/b pipe)

40yearsofz

40yearsofz

Location
Lake Havasu City
Looking to see if anyone can point me to a carb tuning archive? I have read in multiple posts that there is a thread on the X with pages of carb tuning settings for a range of configurations.

I have attempted to search myself for quite some time and have not located the information I am seeking.

I need a starting point for tuning dual 44s on a 64x (760) with a b pipe for my B1 riding elevation below 1000ft.

Thank you,
 
kevbo

kevbo

Location
dfw
If you do find an online archive do yourself a favor and ignore it. Most postings will be very rich at part throttle and too lean for extended full throttle runs. This is okay for freestyle but not the best for other rec riding. If you have no experience then learn to tune a leaf blower. Their carbs are similar to watercraft and the fan loads the engine the same way a jet pump does.
 
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fastgtfairlane

fastgtfairlane

Location
Charlotte, NC
Assuming those are oem 760 sbn 44s. This should be a starting point for you that should get you close.
2.0 n/s
95g spring @25psi popoff (assuming stock flame arrestor with 1 screen)
115-125 pilot
120-130 main
1 turn out both adjustment screws

Again this is a starting point. I'd start with 125 pilots and 130 mains and work your way down. The difficulty with 44s on a 701/760 is there are several ways to set the engine up based on what you want the engine to do. Some will recommend reverse jetting which will work best in freestyle application. That also depends on how you tune your ppipe and the pump. Either works fine it all just depends on the rest of your setup on what will work best.
 
W

waxhead

wannabe backflipper
Location
gold coast
Stock oem 44s I would go 2.3 n/s 95 gram spring
130 low
110 high
This is what I was running on my race ski and free ride boats
but as stated depends on how your pipe is setup as well as igniton squish and compression etc
 
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