SKU: 64982522738

Quick Fuel Black Diamond Marine Series 650 CFM 4-Barrel Carburetor # M-650

Sale price$798.75 Regular price$887.50
Save 10%

Pay in installments of $221.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Quick Fuel Black Diamond Marine Series 650 CFM 4-Barrel Carburetor # M-650Carburetor, Q Series Marine, 650 cfm, Mechanical Secondary, Electric Choke, Satin Black, Dual Inlet, Each M 650 CFM: 650 Fuel Category: Gasoline Remanufactured: No Number of Barrels: 4 Carburetor Flange: Square bore Choke: Electric Secondary Type: Mechanical Fuel Inlet: Dual Primary Jet Size: 71 Primary Power Valve (Hg): 6. 5 Hg Secondary Jet Size: 78 Primary Outer Air Bleed Sizes Included: 70 Primary Inner Air Bleed Sizes Included: 31 Secondary Outer

Carburetor, Q-Series Marine, 650 cfm, Mechanical Secondary, Electric Choke, Satin Black, Dual Inlet, Each M-650

CFM:

650

Fuel Category:

Gasoline

Remanufactured:

No

Number of Barrels:

4

Carburetor Flange:

Square bore

Choke:

Electric

Secondary Type:

Mechanical

Fuel Inlet:

Dual

Primary Jet Size:

71

Primary Power Valve (Hg):

6.5 Hg

Secondary Jet Size:

78

Primary Outer Air Bleed Sizes Included:

70

Primary Inner Air Bleed Sizes Included:

31

Secondary Outer Air Bleed Sizes Included:

70

Secondary Inner Air Bleed Sizes Included:

31

Carburetor Color:

Satin black

Ford Kickdown:

No

Booster Type:

Down-leg

Throttle Linkage Type:

Universal

Carburetor Height (in.):

3.250 in.

Quantity:

Sold individually.

Notes:

Fuel inlets are 7/8-20 in. thread.

Quick Fuel Black Diamond Marine Series Carburetors

To ensure smooth, positive response from your watercraft fuel system, Quick Fuel Technology introduces Black Diamond Marine Series carburetors. The proper blend of air and fuel is critical when you're cruising miles from shore, and the innovative team at QFT has engineered carbs for every street and race application imaginable. Trust their expertise for your boat needs, as well. Depending on the Marine Series carburetor model selected, you can choose single or dual fuel inlets, vacuum or mechanical secondary, primary and secondary jet sizes, and inner and outer air bleed sizes.

Quick Fuel Black Diamond Marine Series carburetors feature:

* Aluminum fuel bowls with sight glass windows for quick float adjustment
* Changeable idle air and high-speed bleeds
* PTFE-coated throttle shafts with PTFE bearing ribbons and stainless steel plates
* J tubes to prevent spillage
* Black Diamond high-temperature satin coating on main body and fuel bowls for enhanced corrosion protection and appearance; coating also provides a 6 percent reduction in fuel temperature
* 4-corner idle adjustment (except M-600)
* Billet metering blocks with changeable primary idle feed and power valve channel restrictions (except M-600)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 64982522738

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 13 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Cait E
Dallas, US
★★★★★ 5
These ACTUALLY stay put all day long - I was skeptical, but am so glad I took a chance on these
Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock
I was so skeptical about whether these would stay on my feet all day without sliding down into my shoe - I’ve tried so many socks in the past with the silicone strip on the heel which failed. I’ve owned these for a couple months now and they have never slipped down - they stay put all day! I love the variety of colors to choose from, and the value per pack is great since six pairs come per pack (I thought it was only three when I first purchased and was pleasantly surprised by the additional pairs). They also have perfect thickness - not too warm to wear during the summer months with sneakers; I live in a tropical climate, though, so I’m not sure how they will do in cooler climates. I’ve washed each pair once or twice and the color and quality of the silicone has stayed so far (knock on wood). Overall: high recommend based on my experience so far!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2025
M
Verified Purchase
Maggie Vega
Alexandria, US
★★★★★ 5
Great fit!
Size: Medium, Color: (403) Washed Navy / Washed Navy / Blue Smoke
Great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
K
Verified Purchase
Kira Stewart
Battle Creek, US
★★★★★ 5
My favorite socks
Size: Medium, Color: (659) Fuchsia Dusk / Fuchsia Dusk / Tourmaline Pink
Very comfortable. True to size. Moisture wicking
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
T
Verified Purchase
Theresa
Port Orchard, US
★★★★★ 4
No show but stays on
Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock
I wear these socks daily. They truly don’t show with my workout shoes or with hey dudes. But the best thing about them is that they actually stay on your foot. I work out hard and I don’t ever have to pull them up. I do wish they were just a little bit thicker than they are, but they are definitely a product I will buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
B
Verified Purchase
B
Omaha, US
★★★★★ 5
Great socks
My fav socks. I am a size 9 women’s and they fit perfect. They are soft and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026

recommand products