Keihin Jets are sized in steps of 2 and 3. §Öæ. 1) Keihin - OEM main jets - Jets are measured using an unknown convention in steps of 2 or 3. H‰|”;OÄ0€÷þŠ–v8ã¼lgCH,ÌÝ:¤[§—^—TÒøKb'Ÿ’Î:ƒúi“Ð2„`ÆK÷Þ?’ ¹\Ì`½`èˆùÁÎZìÍp Hi, your formula is correct, interesting the sizes everybody wants advice on, i would stick to the jet the bike came with plus or minus ten percaent, i had an h100sd stock it would do 65mph, the dealer gave me tenpercent up on jet If your stock main jet is a 100 (stock size in a 22mm Mikuni) you will find this jet size falls between the #62 & #60 drill bit. Fuels that contain over 10% alcohol content may damage parts in the carburetors. 0000010524 00000 n 0000029299 00000 n There are NO Checkout Buttons on this page. Brand new. Mikuni Tuning and Jetting Guide - THE VINTAGE BIKE BUILDER The standard main jet fitted to the HSR42 is … 0000134654 00000 n Valve PE 20MM R69 #100 #58 36S00 #4.0 PE 22MM 18S #102 #40 94D00 #3.5 PE 24MM S14 #115 #52 G1427-36S (REF) #3.0 PE 26MM 78P #142 #40 46JFH #3.0 PE 28MM R37 #125 #40 Carburetor Main Jet Nozzle Kit for Keihin OKO KOSO PE PWK with Available Size #118, 120, 122, 145, 148, 150, 152, 155, 158, 160, Pack of 10 by Vautoparts 3.9 out of 5 stars 9 $9.99 $ 9 . 0 Review(s) Main Jet Keihin 99114-292 type - sizes 125. Keihin Carb Jet Size Chart There seems to be three basic styles of. Keihin CV carb. JET PART NUMBERS & SIZES (IN MM) FOR KEIHIN BD CARBURETORS Slow Jet Size Int. 0000003721 00000 n 0000003484 00000 n The emphasis The numbered drills come in sizes that don't match the jet hole sizes. sÆ®‹[´Kƒ’Z;КZ£A¸Ýå¡a2rO§ +©Õláå iq”Åy”Ð ?f­Óû°'cP:júH‰²}$Xð€£%îÛìG)´ ÿC_êZ_´±w9I!¦1ëõœa±•©¸A瘛֛Oþ¬±g4£>¹¯À4Fäkqa-k»ŽVB9Îðdw_h%ã=¼h^?igȫƱ§ý+r%G®ÒRä‰7Ùâ_ ë;÷±XXð)O°ÿÄ$«)7/¸‘Mh1j Keihin carburetors are designed to be used with normal pump gasoline. Available FCR Carburetor (Venturi dia. 0000010546 00000 n ÍVM Å¬ ô½æÏQ÷/Ýyø+À ©-^ endstream endobj 17 0 obj 395 endobj 18 0 obj << /Filter /FlateDecode /Length 17 0 R >> stream This is probably to avoid engraving “.5” on the jets. 0000001131 00000 n How to measure. 0000005931 00000 n 0000006803 00000 n They use Hole Size in Millimeters to label their jets So a Dyno Jet Brand of jet for a Mikuni or Keihin Bike Carb ,,labelled as a #71 Jet,,,, is actually 0.71 MM Remember, with a steady throttle approximately ⅛, there should be a distinct difference in RPM from 1 ¼ turns to 2 ¼ turns if the pilot jet is correct. Competition motorcycle riders on the other hand are more concerned with power, so getting the jetting right is high on the list of any racer at the start of an event. June 21st, 2018 - Keihin Jet Identification Chart Keihin Jets Are Sized In Steps Of 2 And 3 Eg 100 102 105 108 110 This Is Probably To Avoid Engraving “ 5” On The Jets' 'DRILL BITS SIZES THAT APPROXIMATE MIKUNI JET 3 / 5 Keihin carburetors are only legal in California for racing vehicles, which may never be driven on public highways or waterways. 0000004723 00000 n Installing a smaller size jet will reduce fuel flow, which is ideal for high-altitude conditions where air is limited, where a larger jet size increases fuel flow for oxygen-rich, low altitudes. SIZE Main Jet Slow Jet Jet Needle Thr. 2) Dynojet - Measured in mm. 150-250 (Δ 10)8mm Length N424-32-SIZE 5mm Slot headKeihin PE Series - PE24 only. A # 100 jet is 1. 0000111949 00000 n Jet Size CC/Min Jet bore 10 0.273 15 0.335 20 0.387 25 0.432 30 0.474 35 0.511 40 0.547 45 0.580 50 0.611 55 0.641 60 0.670 65 0.697 70 0.723 75 0.749 80 0.773 85 0.797 90 0.820 95 0.843 100 0.865 105 0.886 110 0.907 115 Run the engine with the stock main jet and take a plug reading. 0000002969 00000 n 610 0 obj << /Linearized 1 /O 613 /H [ 1377 1057 ] /L 1579339 /E 140307 /N 22 /T 1567020 >> endobj xref 610 39 0000000016 00000 n Keihin Part No/Size Dimensions N424-27-SIZE 7mm Slot headHarley-Davidson® CVH (CV Type) carburetor. 0000026621 00000 n 0000004804 00000 n 1.1 mm 0.0433 1.1 #56 0.0465 1.1811 3/64 in 0.0469 1.1906 1.2 mm 0.0472 1.2 1.3 mm 0.0512 1.3 #55 0.052 1.3208 #54 0.055 1.397 1.4 mm 0.0551 1.4 1.5 mm 0.0591 1.5 #53 0.0595 1.5113 1/16 in 0.0625 1.5875 1.6 mm 0.063 0000005853 00000 n For Keihin Carbs the jet sizes refer to the metering orifice diameter, expressed in millimeters. 0000127709 00000 n 99 Dynojet numbers are simply the hole diameter. Recommended Carburetor Size for Engine Displacement. Correction: Keihin replace pilot jet with next richer and test again. Welcome to the Keihin Jet Needles Page This Page is designed for information and Part Numbers. 0000025743 00000 n 0000009622 00000 n 0000002652 00000 n 0000031092 00000 n 0000030144 00000 n Rochester 2G, 2GV, 2GC, 2 Jet, 2 barrel carburetor main jet size specification chart. Carbs have individual, internal 0000008696 00000 n 0000002412 00000 n Keihin Round N424-27 Main Jet 8mm in length with a 7mm Round Head Keihin 1001-806 Main Jet 9mm in length with a 8mm Round Head 0000008718 00000 n 0000002947 00000 n 0000003832 00000 n 35-120 (Δ 2/3)Nickel platedCDK, CDKII 38 & 42 Watercraft Carburetors, With Mikuni offers several needle jet sizes and as mentioned before, a wide variety of needles as well. In order to better understand the various jet sizes and shapes, Keihin has provided a variety of infos that can be condensend in three tables. Stock engines should use the next smaller size and engines tuned to maximum output, may use one size larger. 99-101-357-SIZE. PART NUMBER. H�b```�D6�'B ��``a�( Va�dPpTa�u(��7e�E�[���s����-�V��g1�n��v.�`�f#����a��_��uK. 75 Holley jet is around. 35-70 (Δ 2/3)28mm Length N424-35-SIZE 7mm LengthNickel plated slow jets to prevent corrosion. in mm) 32/33 32-35 35-39 37-41mm This is the recommended carburetor size for a 4-cylin- der engine that is tuned for road race use. 0000024824 00000 n 0000007766 00000 n This indicates that the jet's size is 30 mm. For example, I just trial-fitted some bits into a Keihin 42 pilot jet and the best fit was a #78 .016" bit. SIZES. The first table shows these items:-Harley CVH Main Jet-PB Main Jet-FCR, CVH Slow Jet 0000003032 00000 n If you have any questions, please call customer service at 1-888-727-6687. A 140DJ main has a 1.40mm (0.055") diameter hole in it at the threaded end. #150 1.50mm .059” #53 @ 1.51mm 151 jet 1.7671 #155 1.55mm .061” 1/16”@ .0625” 158 jet 1.8869 #160 1.60mm .063” #52 @ 1.61mm 161 jet 2.0106 0000007744 00000 n a 230 main jet for a mikuni has a smaller diameter hole then a 150 main jet for a keihin...different carb companies have different sizing for all there components... dustin7021 , … An electronic 0000001226 00000 n %PDF-1.4 %���� The first thing we do is match the stock main jet to its corresponding numbered drill bit. I'm looking for a mm size to compare mikuni hex jet sizes in MM. 0000005875 00000 n DIMENSIONS. yup I went cheap and got a "200-300" 10 piece jet kit from ebay on the listing they were stamped 200,210,220 etc however when they arrived I had no stamp..even better they were not all different ie 2 or 3 of the same sizes!! KEIHIN CARBURETOR SLOW JET SIZES 1988 TO 2006 Year 1988 Engine 883 – Jet Size 35 Year 1988 Engine 1200 – Jet Size 35 Year 1989-1991 Engine 883 – Jet … Available from Kawasaki dealers 2 sizes larger and 2 smaller than the Ninja 250's stock #105 main jets. DynoJet Brand of Re-Jet Kits is very popular among motorcycles tuners. 0000002434 00000 n 0000006825 00000 n 0000009644 00000 n 0000004745 00000 n This is particularly true with two-stroke engines, whose power output and rev limits are greatly affected by the jet sizes. I measured the bit and got .40mm. Eg: 100,102,105,108,110. 0000001377 00000 n Topteng Carburetor Rebuild Kit for Kawasaki Polaris Keihin CDK-II Jet Ski PWC 38mm 40mm Fitment:For Kawasaki 1100 STX 1996-1997,For Kawasaki 1100 ZXI 1996-1999 High Quality Read more PWK Carburetor Repairing Kits Motorcycle Parts 24 26 28 30 32 34 36 38 40mm PWK KEIHIN KOSO OKO Mikuni Motorcycle Carburetor Universal Repair Kit Spare Jets trailer << /Size 649 /Info 604 0 R /Root 611 0 R /Prev 1567009 /ID[] >> startxref 0 %%EOF 611 0 obj << /Type /Catalog /Pages 603 0 R /Metadata 605 0 R /AcroForm 612 0 R >> endobj 612 0 obj << /Fields [ ] /DR << /Font << /ZaDb 600 0 R /Helv 601 0 R >> /Encoding << /PDFDocEncoding 602 0 R >> >> /DA (/Helv 0 Tf 0 g ) >> endobj 647 0 obj << /S 589 /V 1177 /Filter /FlateDecode /Length 648 0 R >> stream KEIHIN Leak jet N424-52 OVERALL LENGTH = 7.6 mm SHAFT DIAMETER = 3.2 mm THREAD DIAMETER = 4.4 mm PICTURE. 0000002906 00000 n Very popular among motorcycles tuners 35-70 ( Δ 2/3 ) 28mm Length N424-35-SIZE 7mm LengthNickel slow! 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