Mercury propeller bore sleeve - Stop! Stop wasting money. Regardless of which country you live in, you can save a lot of money by performing your own basic outboard services. It’s easy. And...

 
Buy Mercury 8M0187255 - SLEEVE @5. This OEM part is guaranteed by Mercury's limited part warranty FREE Shipping on qualified orders - Boats.net ... Sign Up. Cart . Yamaha Mercury Honda Evinrude Suzuki Johnson Tohatsu Mercruiser Motorguide Prop Finder Outboard Motor Sale Browse .. Citibank federal savings bank customer service

8M0187255. Due to manufacturer policy OEM Mercury products can only be shipped to addresses within the United States. Find Propellor Bore Sleeve - 8M0054695 here. Offering discount prices on OEM Mercury …5+ IN STOCK. Quantity: Add to Cart. Guaranteed fitment for 23 different models. This is an OEM part manufactured by Mercury Marine. Flat rate shipping starting at $4.95. 30 day …b -Propeller c - Drive sleeve adapter d -Castle nut retainer e -Castle nut ‑ provided with outboard f - Raised pins g -Tabs bent against the nut Description Nm lb‑in. lb‑ft Castle nut 75 55 Bravo Three Propeller Installation IMPORTANT: Mercury Marine Bravo Three propellers are matched sets. Do not operate the drive without a front and rearOEM Quicksilver/Mercury Prop Exhaust Seal Ring 878421. Brand: Mercury Marine / Quicksilver. Part Number: 710-878421. $18.75 $15.00. — You save $3.75. Earn $0.45 in PBS Store Credit. Buy in monthly payments with Affirm on orders over $50.23-8M0070256 Quicksilver Mercury Propeller Bore Ring Sleeve. $8.99. Section: F-623-8M0070256 Quicksilver Mercury Propeller Bore Ring SleeveManufacturer: QuicksilverPart Number: 23-8M0070256Condition: NewQuantity: 1Cross References: 30-3347, 2824-7601, 28247601(verify ... Add to Cart. Quick ...Government Sales. Discounts for federal and most state and municipal agencies. Details. Buy Mercury 8M0214998 - SLEEVE-PROP BORE. This OEM part is guaranteed by Mercury's limited part warranty FREE Shipping on qualified orders - Boats.net.The flywheel on an outboard will need to be removed when repairs are needed such as the motor not starting properly. In order to access the crankshaft of the motor the flywheel wil...8M0151234. $1,047.13 $837.70. Add to Cart. Mercury Marine Enertia 3 Blade Stainless Propeller, Low Price, Large Selection, Quick Delivery & Expert Advice.With innovative technology and superior materials behind them, Mercury props set the standard for premium design and durability. Legacy Proven Stainless Steel Propellers. Legendary on the water, Mercury Legacy propellers are ideal for extracting peak performance from older and underpowered boats. ...Mercury Mariner 70-250hp Tab Washer 5pack (OSTW816. $32.65. Add to Cart. Sort by: 1. Shop for Mercury outboard propeller hardware for all make and models via Outboard Spares now. We are Australian owned and operated and supply aftermarket outboard spare parts to the recreational and commercial boating industry.SKU. 23-8M0054695. Qty. Add to Cart. SPEND $149.00 FOR FREE SHIPPING* Speedy Delivery. 30-Day Returns. Refer a Friend, earn 350 rewards points! Description. … Save up to 31% off Mercury fluids! ... Mercury Propeller Bore Sleeve - 23-8M0070256. More Information; Manufacturer: Mercury: MPN: 23-8M0070256: Legacy Part No. 1: 23 ... This is important in determining a suitable propeller pitch. When in doubt, dealer assistance is suggested. • Prop installation, inspection and boat operation all need to be done in a safe and responsible manner. Solas propeller charts for Mercury 115hp equipped boats, with all blade options. (2 Stroke 15 Spline)The sleeve is machined and embedded to the shaft taper but can be used to adapt a general purpose spare propeller to a particular shaft taper. The sleeve is easier to handle when machining and bedding than a complete propeller. Another benefit is that cast iron has a coefficient of friction nearer to that of the shaft than to the propeller bronze.mercury precision lubricants; fuel care system; cleaners & protectants; power steering fluid; ... prop bore sleve 8m0214998. $6.60 $5.94 (you save $0.66) ...Trophy Plus (13.8 x 26") MERCURY RH Propeller, 48-8M0151395. $804.53. Retail $1,005.66. Details. Whether you're a proffesional angler or a weekend boater creating family memories, the propeller is the key to unlocking your boat's full potential. The certified marine technicians of Boat Propeller Warehouse will help you get the propeller you ... REPAIR KIT, Clutch And Cam Follower (1 required per assembly) 52-888805A00 - Clutch/Camfollow [ More info ] $266.42. Available to Order: Usually ships within 10 days. #. 26-43035A 4. SEAL KIT, Gear Housing (1 required per assembly) Product Code: BBM2. $133.00. - +. Add to Cart. Add to Wish List Compare this Product. Description. Anchor Bushings -. Bronze Propeller Bore Reducer Bushing 1.250" to 30mm - Anchor Bronze Propeller Bore Reducer. Converts an SAE standard taper 1 1/4" bore to a 30mm boat shaft.Fort Myers, FL. Offshore Performance Specialties.Prop Bore Sleeve - Mercury 115HP Outboard Motor thingiverse. This is a prop bore sleeve for a Mercury 115HP Outboard Engine. Serial numbers 2B095049 and above. Propeller shaft 2.07:1. ...Mercury part# 23-8M0070256 I needed one in a pinch and modeled this after the original.The nylon bushing work fine for low horsepower applications. For high horsepower usage the bronze bushing is a better choice. Anchor Bushing 1-3/8'' shaft size bore reducing bushings available in bronze to reduce your propeller bore to fit onto a 1-3/8 inch shaft. Fits 1-1/2'' prop bores. Part # BB11.Problem fixed: plastic sleeve on lower unit . The plastic bore sleeve on lower unit was damaged and I removed the prop when I changed gear lube, and snapped in the new piece in place. Very easy. Customer service helped me pic the correct part! Mercury Propeller Sleeve - 23-8M0054695. Have Questions? ... Do you own a Yamaha, Mercury, or Suzuki Marine engine? Receive relevant information, tips, and promotions. Home /. Mercury-Mercruiser 23-8M0070256 SLEEVE Prop Bore. Mercury Marine part number 8M0070256 is no longer made, it has been superceded and replaced by 8M0214998 -click here- to see the newest superceded part. Stock status: Not in stock - will be transferred from factory. Manufacturer part number: 8M0070256. GTIN: 745061935518.You need a 3-inch paint roller for some spaces, but you don't need to purchase small paint sleeves. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View A...Anchor Bushings Bronze Propeller Bushing - 7/8" Bore to 3/4" Shaft (BB1) MSRP: $110.59. $99.53. Add to Cart. Anchor Bushing.10000+ "mercury outboard motor" printable 3D Models. ... Tags Mercury 2 5 3 5 HP 5 Blade Prop , , , , Download: free Website: Thingiverse. add to list Tags boat ... Tags Prop Bore Sleeve - Mercury 115HP Outboard Motor , , …Buy genuine factory OEM Mercury Outboard parts for your outboard engine, parts, and accessories from our complete online product catalog. ... Mercury Propeller Bore Sleeve - 23-8M0070256. $5.31. CAP - AIR DAM MER - 8M0118170. $119.55. Mercury 150 EFI 4 Stroke Complete 100 Hour Service Maintenance Kit 10W-30 - 8M0094232. Richard--Many thanks for this information. It will be very valuable to all owners of the Mercury 150 FOURSTROKE. I think your prediction may be correct: many owners of the Mercury 150 FOURSTROKE may be experiencing propeller ventilation problems and not realize the cause is the deterioration of the prop bore sleeve or propeller bore sleeve. Mercury - Mercruiser. SKU: 23-8M0070256. $6.99. $5.49. 21% OFF. SHOP ALL Mercury - Mercruiser. Enter your email address to be notified when this item is back in stock. Please enter a valid email address. Calculated propeller slip within the range of 5% to 25% is typical and acceptable. If slip is greater than 25%, there is likely an issue with the propeller. It could be damaged or just wildly wrong for the boat-and-engine combination. Or, it could be ventilating because the outdrive or outboard motor is mounted too high on the transom.Many people are upset about the mercury content in compact fluorescent bulbs (CFLs), but there’s a much greater amount found in fluorescent tubes. Expert Advice On Improving Your H...Recommended to use on the Mercury 150 FS and 75-115 CT with Trophy Plus propellers. ... Sleeve - Prop Bore 23-8M0214998. $7.10. In Stock, Generally Ships in 1-3 Business Days. Add to Wish List. Add To Cart. Quick View. Prop Ring Sleeve (New Style) 8M0187255. $5.80.Pillowcases are cases, so technically you could just drop your laptop in one of them and be done with it, but here's a way you can actually make a laptop sleeve you'd actually use ...14.25 LH 14.500 0.090 Cup 4-Blade Spline Bore. OJ Propellers 477 XMP Edge 4-Blade ... Duramax Non Metallic Sleeve Bearing 1.250" x 1.500" DEENADuramax Non-Metallic Sleeve Bearings ... Hung Shen Propellers, Solas, Volvo Propellers, Mercury Propellers, Power Tech Propellersand even Sailboat Propellers by Max Prop, Martec, Volvo penta …Aug 15, 2022 · Video of a rookie (me) changing a prop on a Mercury 75 HP 4-stroke (attached to a 2021 Princecraft Vectra 19 Pontoon), and some of the learnings along the wa... Fort Myers, FL. Offshore Performance Specialties.hub kit I used (PAID LINK): https://amzn.to/3JvvqefDISCLOSURE: As an Amazon Associate I earn from qualifying purchases. I'll show you how I installed a new ...It was missing the prop bore sleeve and would ventilate at about 4000-4200 RPM. Luckily it's only like a $5 part and takes about 5 minutes to install. I ordered extras to keep on hand as it appears very common for them to break. With that, I'm having a hard time choosing the right prop for my 21/22' pontoon.Mercury Quicksilver. Quicksilver is part of the Mercury Marine family of companies. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement parts and accessories. Visit MarineEngine.com for Mercury Quicksilver 238M0070256 - SLEEVE-Propeller BORE price, stock and delivery options to order online.For use with newer style two pin drive sleeve adapters. Kit contains 1 nyloc nut and 2 fold up style tab washers (OEM) Compatible with the following drives: Fits Mercury / Mariner 75 HP and up (except F225 Four Stroke) Force 85-150 HP 1985-1994 (with dual exhaust gear housing) Mercury Mercruiser Alpha I, Bravo I. Part# 8M0056234.Description. QUICKSILVER 835290Q1 Flo-Torq II Delrin Drive Sleeve. Flo-Torq II hub kit 835290Q1 is for use in Mercury or Quicksilver propellers for 75 hp Mercury 2-cycle outboards (1984 and newer), 90 hp and 115 hp Mercury 2-cycle outboards (1978 and newer), 125 hp Mercury outboards (1994 and newer) and Mercury Verado outboards.Spitfire aluminum propellers can be used on Mercury and Mariner outboards 90-350 hp, plus MerCruiser Alpha One and Bravo One stern drives. See your owner's manual for the Flo-Torq hub, thrust washers and prop nut part numbers to … Government Sales. Discounts for federal and most state and municipal agencies. Details. Buy Mercury 8M0214998 - SLEEVE-PROP BORE. This OEM part is guaranteed by Mercury's limited part warranty FREE Shipping on qualified orders - Boats.net. item 4 Mercury Mercruiser Prop Propeller Nut Kit Alpha, Bravo 1, Quicksilver, 8M0056234 Mercury Mercruiser Prop Propeller Nut Kit Alpha ... Quicksilver Oem Part # 8M0214998 Prop Bore Sleeve For 5 New Mercury Mercruiser Quicksilver Oem Part # 8M0214998 Prop Bore Sleeve For 5. $24.99 +$4.99 shipping. Best Selling in Other. Current slide …Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement parts and accessories. 23-8M0214998 - SLEEVE-PROP BORE 1 1 lb Mercury Quicksilver 23-8M0214998 Menu: Home Why Boaters Shop Here Boat Engine Parts Boat Motor Manuals Boating Accessories Boat Repair Forum Ordering & Shipping Information 30-Day Return Policy ...Which online-only banking solution is better for you? Read our review to compare Mercury and Novo’s features, use cases, and fees. Banking | Versus REVIEWED BY: Tricia Tetreault Tr...Mercury Outboard Sleeves. We need to research the application first. Please Email [email protected] with your serial number and model number at least 48 hrs. prior to your phone call. We will not take an order by phone without confirming the application by Email first. Call (941) 209-5747 to order. Mercury Outboard / Mariner Sleeves. Model. Cyl ...SLEEVE-PROP BORE. 8M0214998. by Mercury. $7.50 2% OFF. $7.33. In Stock. Ships within 24 Hours · Deliver From Main Warehouse. Add to Cart. Add to List. Genuine …Anchor Bushings Bore Reducers in Nylon & Bronze are an easy & quick fix for those times when the prop bore is a different from the propeller shaft size. Blog; 866-790-7767; ... Sleeve Bearings. Line Cutters. Prop Nuts. Flex ... Volvo Propellers, Mercury Propellers, Power Tech Propellersand even Sailboat Propellers by Max Prop, Martec, Volvo ...Replacement propeller bore sleeve for Mercury outboards. Fits: 65 hp EFI Jet, 75 hp EFI, 75 hp EFI SeaPro, 80 hp EFI, 80 hp EFI Jet, 90 hp EFI, …I thought the office was haunted. The piercing whine of a cat, or a baby, coming through the vents. A machine from the construction outside the window? Oh god, probably a dying mou...PartsVu offers Mercury outboard motors ranging from 2.5 hp to 25 hp. Mercury outboard motors offer reliability, and efficiency for all boating needs. 14 Items. Sort By. Mercury FourStroke Outboard - 2.5HP - 15 Inch Shaft Length - ME2.5MH. $965.00. Learn More. Add to Wish List. Mercury outboard FourStroke - 3.5hp - 15 Inch Shaft Length - ME3.5MH.MERCURY PROPELLER DRIVE SLEEVE FOR 60HP TO 300HP ***Not suitable for Bravo series. *** Notes: 1. The actual colour of the product may differ from the picture due to lighting and screen setting. 2. Kindly provide the serial number of your engine when contacting us for ease of communication, matching information is for reference only. 3. If …GreatUs Drive Sleeve 835290Q1 3 5/8 inches for Propeller Removable Hub Replacement for Quicksilver, Compatible with Mercury, Mercruiser, Solas, Michigan Wheel 4.5 out of 5 stars 318 Amazon's Choice Richard--Many thanks for this information. It will be very valuable to all owners of the Mercury 150 FOURSTROKE. I think your prediction may be correct: many owners of the Mercury 150 FOURSTROKE may be experiencing propeller ventilation problems and not realize the cause is the deterioration of the prop bore sleeve or propeller bore sleeve. Compare Nationwide vs Mercury. WalletHub reviews both companies side-by-side to show you which is better for your needs. THE VERDICT Nationwide is better than Mercury overall, per ...Mercury manufactures a range of propellers for popular outboard and sterndrive engine brands. Using our Prop Selector will allow you to find the one you needThe part is called a propeller bore sleeve. It literally just snaps into place. If you are able to remove the propeller then you are definitely most able to change the bore sleeve. Just pull the prop off, break up the old sleeve with a hammer and chisel, and snap the new one in place. It's a 4 dollar part. Mercury - Mercruiser. SKU: 23-8M0070256. $6.99. $5.49. 21% OFF. SHOP ALL Mercury - Mercruiser. Enter your email address to be notified when this item is back in stock. Please enter a valid email address. Amazon.com: Mercury Prop Parts. ... Kicofyee Drive Sleeve Replace 835290Q1 3 5/8 inches for Quicksilver Propeller Removable Hub Replacement for Mercury for Mercruiser for Solas for Michigan Wheel. 5.0 out of 5 stars 1. $13.99 $ 13. 99. FREE delivery Mon, Oct 2 on $35 of items shipped by Amazon.Changed my prob on 90hp outbaord. Same dia. and pitch. Old prop would spin freely by hand. After installing new bore sleeve and prop, prop seems tight. Is this normal? Mechanic's Assistant: Sometimes boat issues seem like they'll be really complicated, but end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the ...Description. Quicksilver - SLEEVE Propeller Bore. Part No: 23-8M0187255. Superseded from: 8M0054695. Fits the following: 75-115hp engines with Command Thrust (CT) …The 1940s Classic Mercury Cars Channel covers popular antique Mercurys from the decade. Take a look under the hood of 1940s classic Mercury cars. Advertisement The 1940s Classic Me...This Mercury 8M0054695 PROPELLER BORE SLEEVE 8M0054695 fits the following models and components: Mercury Outboard 90HP 90HP EFI Sea Pro 2B095049 & Up Gear Housing, Propeller Shaft, 2.38:1 Standard Rotation. Mercury Outboard 80HP 80HP EFI 2B095049 & Up Gear Housing, Propeller Shaft, 2.38:1 Standard RotationJul 6, 2018 · The bore sleeve is meant to take up the gap between the propeller and gear housing. If the sleeve is not in place what can happen is exhaust gasses can escape between the prop and gear housing, and cause the prop to loose it's bite in the water, ventilate, and blow out. That's all it does. Experience: Degree in Marine Technology. Mercury MerCruiser 4.3 Litre Vortec Thunderbolt V6 Tune Up Kit MR43LTS Plugs. $112.95. Trending at $120.28. Find many great new & used options and get the best deals for P29B Mercury Quicksilver 23-8M0070256 Propeller Bore Sleeve OEM Boat Parts at the best online prices at eBay! Free shipping for many products!Find many great new & used options and get the best deals for P29B Mercury Quicksilver 23-8M0070256 Propeller Bore Sleeve OEM New Boat Parts at the best online prices at eBay! ... See More Details about "A25B Mercury Quicksilver 23-8M0070256 Prop Bore Sleeve..." Return to top. More to explore : Quicksilver Boat Propellers, Mercury Boat …Mercury cavitation & bore sleeve - YouTube. Huey Hano. 9 subscribers. Subscribed. 29. 5K views 2 years ago. Mercury 115 CT Propeller cavitation caused by missing bore …The 1940s Classic Mercury Cars Channel covers popular antique Mercurys from the decade. Take a look under the hood of 1940s classic Mercury cars. Advertisement The 1940s Classic Me...This is important in determining a suitable propeller pitch. When in doubt, dealer assistance is suggested. • Prop installation, inspection and boat operation all need to be done in a safe and responsible manner. Solas propeller charts for Mercury 115hp equipped boats, with all blade options. (2 Stroke 15 Spline)Anchor Bushings Bore Reducers in Nylon & Bronze are an easy & quick fix for those times when the prop bore is a different from the propeller shaft size. Blog; 866-790-7767; ... Sleeve Bearings. Line Cutters. Prop Nuts. Flex ... Volvo Propellers, Mercury Propellers, Power Tech Propellersand even Sailboat Propellers by Max Prop, Martec, Volvo ...I'm not going to replace the sleeve on my motor, since I usually run small hub props that vent around the prop hub anyway, and the missing sleeve doesn't appear to add any vent area on the Trophy Plus. In any event- it might pay to stock up on a spare sleeve: Part Number 8M0054695 Sleeve, Propeller Bore Mercury - Mercruiser 23-8M0214998 Sleeve-Prop Bore. Genuine OEM Mercury-Mercruiser part. Fits: 65 HP EFI Jet - s/n 2B095049 & up; 75 HP EFI - s/n 2B095049 & up Use the Contact Us form at the bottom of the page for any questions. Stock status: 2 PIECES ARE IN STOCK. Manufacturer part number: 8M0187255. GTIN: 745061895867. Pickup or normally ships: Available - Next business day. Manufacturer: Mercury Marine. MSRP: $6.10. Web Price: $5.95. Product Shipping specifications = pounds and inches. This Mercury 8M0054695 PROPELLER BORE SLEEVE 8M0054695 fits the following models and components: Mercury Outboard 90HP 90HP EFI Sea Pro 2B095049 & Up Gear Housing, Propeller Shaft, 2.38:1 Standard Rotation. Mercury Outboard 80HP 80HP EFI 2B095049 & Up Gear Housing, Propeller Shaft, 2.38:1 Standard RotationMERCURY PROPELLER DRIVE SLEEVE FOR 60HP TO 300HP ***Not suitable for Bravo series. *** Notes: 1. The actual colour of the product may differ from the picture due to lighting and screen setting. 2. Kindly provide the serial number of your engine when contacting us for ease of communication, matching information is for reference only. 3. If …

Sleeve, Outboard Motor parts for Mercury Outboard and Mariner outboard motors. ... Longer Length must bore cl to bottom. 3-1/8" L098 3.345" 150 XR4 1990-92. V-6. RS. . Jim and connie's blair bakery menu

mercury propeller bore sleeve

Mercury - Mercruiser 23-8M0214998 Sleeve-Prop Bore. Genuine OEM Mercury-Mercruiser part. Fits: 65 HP EFI Jet - s/n 2B095049 & up; 75 HP EFI - s/n 2B095049 & up Buy your Mercury outboard motor parts online from experienced boat specialists at Van's Sport Center! ... 1B905505 & Up | Gear Housing, Propeller Shaft, Counter . Mercury > MERCURY > 150 (4-Stroke) > 1B905505 & Up > Gear ... SLEEVE, Propeller Bore Part No: 8M0054695 8M0187255 1: 6.10 5.49 Help & Support. Customer Service.Quicksilver - SLEEVE Propeller Bore. Part No: 23-8M0187255 Superseded from: 8M0054695 Fits the following: 75-115hp engines with Command Thrust (CT) gearcase 3B251214 and above. 150hp FourStroke 3B234467 and above. Please contact us with your model and serial number if unsureBuy Mercury 8M0070256 - PROPELLER BORE SLEEVE 8M0070256. This OEM part is guaranteed by Mercury's limited part warranty FREE Shipping on qualified orders - Boats.net.The bore sleeve is meant to take up the gap between the propeller and gear housing. If the sleeve is not in place what can happen is exhaust gasses can escape between the prop and gear housing, and cause the prop to loose it's bite in the water, ventilate, and blow out. That's all it does. Experience: Degree in Marine Technology.Not if you have a new one installed. Marine Mechanic: Jason. You are right, it is a design issue. I really do not have any answers or suggestions for you. If Mercury simply made the ID of the gear housing just .15 to .20 of an inch smaller then there would be no need for that sleeve. Ask Your Own Boat Question.Mercury - Sleeve-prop bore - 23-8M0214998. Have Questions? $6.60. $4.67. SKU. 23-8M0214998. This product could earn you Points. Qty.Feb 1, 2015. #1. I was seeing if one of my old aluminum props could be used as a spare on a friends 2012 Mercury 150hp 4-stroke. It has a plastic ring that has 3 tabs and fits into the bearing carrier nut and seems to fill in the gap at the front of the prop. My spare aluminum prop seems to rub a bit too much on it.DIY site Instructables posts a tutorial on making a laptop sleeve from FedEx envelopes: DIY site Instructables posts a tutorial on making a laptop sleeve from FedEx envelopes: I wa...Drive Sleeve for Mercury Flo-Torq II 835290Q1 . Brand: Pousutong. 4.5 4.5 out of 5 stars 64 ratings | Search this page . ... GreatUs Drive Sleeve 835290Q1 3 5/8 inches for Propeller Removable Hub Replacement for Quicksilver, Compatible with Mercury, Mercruiser, ... Tighten the prop nut with a 1 1/16-inch socket after placing a small wood block (a short section of 2x4 lumber, for example) between the prop blade and the anti-ventilation plate. If you have a torque wrench the nut on a Flo-Torq SSR HD hub should be tightened to 55 ft. lbs. Always refer to the instructions included with your hub kit for ... Made in the United States, you can trust in the quality and reliability of this product. Perfect for anyone in need of boat parts or accessories, this propeller bore sleeve is a valuable addition to any collection.The propeller bore sleeve used on the 75-115hp CT gearcase models and the 150hp FourStroke is changing to a new design. The new design features a new plastic material and improved locking tabs. The old design sleeve 8M0054695 has been. superceded to the new design sleeve 8M0187255. The propeller bore sleeve is an integral component of the gear ...Moderna Mercury-propellrar i rostfritt stål ger en seriös konkurrensfördel, oavsett om du vill köra snabbare, köra längre eller spara på bränsle. Läs mer Specialty Användningsspecifika rostfria propellrar . Våra Mercury-specialpropellrar är ...Calculated propeller slip within the range of 5% to 25% is typical and acceptable. If slip is greater than 25%, there is likely an issue with the propeller. It could be damaged or just wildly wrong for the boat-and-engine combination. Or, it could be ventilating because the outdrive or outboard motor is mounted too high on the transom..

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