TM SERIES FLAT SLIDE NEW STYLE EXPLODED VIEW | |
Other TM series parts in addition to what is listed below. | |
1. Complete Starter System, VM28-418 (TM28) VM26/116 002-815 | |
1. Complete Starter System TM32-1, TM34-2, TM36-2, TM38-1 VM29/47 002-816 | |
1. Complete Starter System TM38-3, TM38-85, TM38-86 VM29/47 002-816 | |
1. Complete Starter System TM39 and TM41 Pro Series VM29/47 002-816 | |
2. Nylon Ring TM24-8001 VM24/791A 002-780 | |
2. Nylon Ring TM28, TM32-34 VM28/1046 002-754 | |
2. Nylon Ring TM36-2, TM38-1, TM38-3, VM38/153 002-753 | |
2. Nylon Ring TM38-85, TM38-86, TM39/41 Pro VM38/153 002-753 | |
3. Screw with Lock Washer for Cable Connector TM24-8001 CW2=2608 007-265 | |
3. Screw with Lock Washer for Cable Connector VM28-418 (TM28), TM32-1, TM34-2, CW2=0310 002-752 | |
3. Screw with Lock Washer for Cable Connector TM36-2, TM38-1, TM38-3 CW2=0310 002-752 | |
3. Screw with Lock Washer for Cable Connector TM38-85, TM38-86, TM39/TM41 Pro CW2=0310 002-752 CW2=0310 002-752 | |
4. Cable Connector TM24-8001 VM24/790 002-758 | |
4. Cable Connector TM36-2, TM38-85, TM38-86 VM38/152 002-751 | |
4. Cable Connector TM39 and TM41 Pro Series VM38/152 002-751 | |
5. E-Ring (Needle Clip) All TM Series VM20/369 002-083 | |
6. NEEDLES | |
7. Throttle valves | |
TM24 (TM24-8001) 3.0 832-30005 002-951 TM28 (VM28-418) 2.5 832-33001 002-804 TM32 (TM32-1) 4.0 832-39012 (TM32-1 uses same as TM34-2) 002-800 TM34 (TM34-2) 4.0 832-39012 (TM32-1 uses same as TM34-2) 002-800 Old Style TM 36, TM38 Carburetor with Top Idle Adjuster Rod TM36 (TM 36-2), TM38 (TM38-1, TM38 (TM38-3) 2.5 832-43002 002-734 3.0 832-43002 002-735 4.0 832-43002 002-737 5.0 832-43002 002-739 New Style TM 38 Carburetor, with Side Idle Adjuster Screw TM38 (TM38-85), TM38 (TM38-86) 2.5 832-43011 007-401 3.0 832-43011 007-402 3.5 832-43011 007-403 4.0 832-43011 007-404 4.5 832-43011 007-405 | |
8. Idle Rod (TM Carburetors with Top Idle Adjustment) TM36-2, TM38-1, TM38-3 VM38/159 002-732 | |
10. Screw, Jet Block All TM Series VM38/132 002-742 | |
11. Washer All TM Series VM34/274 002-741 | |
12. Jet Block, Left - TM38-1, TM38-3 VM38/144 002-710 | |
13. Jet Block, Right - TM38-1, TM38-3 VM38/145 002-711 | |
14. Float Pin All TM Series BV26/22 002-107 | |
15. Float Arm TM32-1, TM34-2, TM36-2, TM38-1 VM36/15 002-112 | |
15. Float Arm TM38-3, TM38-85, TM38-86 VM36/15 002-112 | |
15. Float Arm TM39 and TM41 Pro Series VM36/15 002-112 | |
16. Cap, Float Guide Pin VM28-418 (TM28), TM32-1, TM34-2 VM26/42 002-718 | |
16. Cap, Float Guide Pin TM36-2, TM38-1, TM38-3 VM26/42 002-718 | |
17. Pilot Jet All TM Series VM22/210 | |
18. Float TM24-8001 VM24/365 007-255 | |
18. Float VM28-418 (TM28) VM28/694 007-726 | |
18. Float TM32-1, TM34-2, TM36-2, TM38-1 VM24/236 002-113 | |
18. Float TM38-3 VM24/236 002-113 | |
18. Float TM38-85, TM38-86, TM39/41 Pro RH 859-52020 002-481 | |
18. Float TM38-85, TM38-86, TM39/41 Pro LH 859-52021 002-482 | |
19. Gasket, Float Chamber TM24-8001 VM20/492 007-250 | |
19. Gasket, Float Chamber VM28-418 (TM28) VM26/228 007-251 | |
19. GASKET, FLOAT CHAMBER TM32-1,TM34-2,TM36-2,TM38-1 VM34/374 002-700 | |
19. GASKET, FLOAT CHAMBER TM38-3, TM38-85, TM38-86 VM34/374 002-700 | |
19. GASKET, FLOAT CHAMBER TM39 and TM41 Pro Series VM34/374 002-700 | |
20. Float Bowl Assembly TM36-2, TM38-1, TM38-3 TM32/02-100 002-701 | |
20. Float Bowl Assembly TM38-85, TM38-86, TM39/41 Pro TM38/138 007-767 | |
21. Plate, Hose Retaining VM28/79A 002-204 | |
22. Screw with Lock Washer TM24-8001 CW2=0416-B 002-615 | |
22. Screw with Lock Washer VM28-418 (TM28) CW2=0416 002-823 | |
22. Screw with Lock Washer TM32-1, TM34-2, CW2=0516 002-373 | |
22. Screw with Lock Washer TM36-2, TM38-1, TM38-3, TM38-85, TM38-86, TM39/41 Pro CW2=0518 002-719 | |
22. Screw with Lock Washer TM38-85, TM38-86, TM39/41 Pro CW2=0518 002-719 | |
23. O-Ring VM28-418 (TM28) VM26/227 002-825 | |
23. O-Ring TM32-1, TM34-2, TM36-2, TM38-1 VM28/254 002-531 | |
23. O-Ring TM38-3, TM38-85, TM38-86 VM28/254 002-531 | |
23. O-Ring TM39 and TM41 Pro Series VM28/254 002-531 | |
24. Drain Plug VM28-418 (TM28) VM28/817 002-827 | |
24. Drain Plug TM32-1, TM34-2, TM36-2, TM38-1 VM28/253 002-526 | |
24. Drain Plug TM38-3, TM38-85, TM38-86 VM28/253 002-526 | |
24. Drain Plug TM39 and TM41 Pro Series VM28/253 002-526 | |
25. Cap, Idle Adjuster TM36-2, TM38-1, TM38-3 VM35/40 002-731 | |
26. Packing (Rubber) TM36-2, TM38-1, TM38-3 N138.077 002-730 | |
27. Nut-TM36-2, TM38-1, TM38-3 N2=04 002-729 | |
28. Idle Adjuster-TM36-2, TM38-1, TM38-3 603-68001 002-728 | |
29. Nut-TM36-2, TM38-1, TM38-3 BDC36/35 002-727 | |
30. Rubber Cap VM18/228 002-723 | |
30. Rubber Cap TM24, VM28-418 (TM28) VM26/46 002-061 | |
30. Rubber Cap TM32-1, TM34-2, TM36-2 VM18/228 002-723 | |
30. Rubber Cap TM38-1, TM38-3 VM18/228 002-723 | |
30. Rubber Cap TM38-85, TM38-86 VM34/282 002-452 | |
31. Screw with Lock Washer All TM Series CW2=0412 002-748 | |
32. Cable Adjuster VM28-418 (TM28) M18F/43A 002-062 | |
32. Cable Adjuster TM32-1, TM34-2, TM36-2, TM38-1 VM36/83 002-724 | |
32. Cable Adjuster TM38-3, TM38-85, TM38-86 VM36/83 002-724 | |
32. Cable Adjuster TM39 and TM41 Pro Series VM36/83 002-724 | |
33. Locknut VM28-418 (TM28) B30/247 002-065 | |
33. Locknut TM32-1, TM34-2, TM36-2, TM38-1 B30/247 002-065 | |
33. Locknut TM38-3, TM38-85, TM38-86 B30/247 002-065 | |
33. Locknut TM39 and TM41 Pro Series B30/247 002-065 | |
34. Mixing Chamber, Top TM24-8001 VM24/785 007-765 | |
34. Mixing Chamber, Top TM36-2, TM38-1, TM38-3 776-19002 002-733 | |
34. Mixing Chamber, Top TM38-85, TM38-86, TM39/41 Pro 776-19001 NA | |
35. Gasket, Top TM24-8001 VM24/785 007-765 | |
35. Gasket, Top VM28-418 (TM28) VM28/1045 002-830 | |
35. Gasket, Top TM32-1, TM34-2, VM32/495 007-268 | |
35. Gasket, Top TM36-2, TM38-1, TM38-3 VM38/127 002-725 | |
35. Gasket, Top TM38-85, TM38-86, TM39/41 Pro VM38/127 002-725 | |
36. Spring, Throttle valve TM24-8001 730-11003 002-831 | |
36. Spring, Throttle valve VM28-418 (TM28) 730-15021 002-832 | |
36. Spring, Throttle valve TM32-1, TM34-2 730-15004 002-833 | |
36. Spring, Throttle valve TM36-2, TM38-1, TM38-3, 730-16003 002-750 | |
36. Spring, Throttle valve TM38-85, TM38-86, TM39/TM41 Pro 730-16003 002-750 | |
37. Needle Jet TM24-8001 #454 Series Q-0 Needle Jet | |
37. Needle Jet VM28-418 (TM28) #175 Series P-8 Needle Jet | |
37. Needle Jet TM32-1, TM34-2, TM36-2 #389 Series Q-2 Needle Jet | |
37. Needle Jet TM38-1, TM38-3 #389 Series Q-2 Needle Jet | |
37. Needle Jet TM38-85, TM38-86, TM39/41 Pro #389 Series Q-2 Needle Jet | |
38. Ring, Main Jet TM24-8001 VM28/449 002-664 | |
38. Ring, Main Jet VM28-418 (TM28) VM28/429 002-836 | |
38. Ring, Main Jet TM32-1, TM34-2, TM36-2, TM38-1, TM38-3 VM34/454 002-837 | |
38. Ring, Main Jet TM38-1, TM38-3 VM34/454 002-837 | |
38. Ring, Main Jet TM38-85, TM38-86, TM39/41 Pro TM34/36 002-835 | |
39. Main Jet All TM Series 4/042 | |
40. O-Ring, Needle Valve TM24-28 VM24/559 002-838 | |
40. O-Ring, Needle Valve TM32-41 KV10 002-709 | |
41. Needle valve 1.5 WITH KV10 O-RING TM24-8001 STD MIKUNI# VM24/557A-1.5 (SKU 002-842) | |
41. Needle Valve 2.5 with KV10 O-Ring TM28, VM28-418 STD MIKUNI# VM24/557A-2.5 (SKU 002-840) | |
41. Needle valve 3.3 WITH KV10 O-RING TM32-1, TM34-2, TM36-2 STD MIKUNI# 786-46001-3.3 (SKU 002-705) | |
41. Needle valve WITH KV10 O-RING TM38-1, TM38-3 STD MIKUNI# 786-46001-3.5 (SKU 002-707) | |
41. Needle valve WITH KV10 O-RING TM38-85, TM38-86, TM39/41 PRO STD MIKUNI# 786-46001-3.5 (SKU 002-707) | |
42. Plate, Needle Valve All TM Series VM24/560 002-721 | |
43. Screw All TM Series C2=0406 002-722 | |
44. Vent Hose VM14/49 002-755 | |
45. Gasket, Front Cover TM24-8001, VM28-418 (TM28) VM28/1044 002-847 | |
45. Gasket, Front Cover TM38-85, TM38-86, TM39/41 Pro VM38/126 002-726 | |
48. Screw All TM Series VM38/133 002-749 | |
49. Air Screw, Pilot TM24-8001, VM28-418 (TM28) VM20/584 002-850 | |
49. Air Screw, Pilot TM32-1, TM34-2, TM36-2, TM38-1 VM24/672 007-768 | |
49. Air Screw, Pilot TM38-3, TM38-85, TM38-86 VM24/672 007-768 | |
49. Air Screw, Pilot TM39 and TM41 Pro Series VM24/672 007-768 | |
50. Spring, Pilot Air Screw All TM Series M12/46A 002-181 | |
51. Washer, Pilot Air Screw TM32-1, TM34-2, TM36-2, TM38-1 VM12/33 002-856 | |
51. Washer, Pilot Air Screw TM38-3, TM38-85, TM38-86 VM12/33 002-856 | |
51. Washer, Pilot Air Screw TM39 and TM41 Pro Series VM12/33 002-856 | |
52. O-Ring, Pilot Air Screw TM32-1, TM34-2, TM36-2, TM38-1 N133.037 002-858 | |
52. O-Ring, Pilot Air Screw TM38-3, TM38-85, TM38-86 N133.037 002-858 | |
52. O-Ring, Pilot Air Screw TM39 and TM41 Pro Series N133.037 002-858 | |
53. Main Air Jet BS30/97 | |
54. Overflow Hose VM14/49 002-755 | |
55. Starter Jet All TM Series VM17/1002 | |
56. Idle Stop Screw TM24-8001, VM28-418 (TM28) 603-27002 002-860 | |
56. Idle Stop Screw TM32-1, TM34-2, TM38-85, TM38-86, TM39/41 Pro, TM39 and TM41 Pro Series 603-16003 002-861 | |
56. Idle Stop Screw TM38-85, TM38-86, TM39/41 Pro 603-16003 002-861 | |
56. Idle Stop Screw TM39 and TM41 Pro Series 603-16003 002-861 | |
57. Spring, Idle Screw TM24-8001, VM28-418 (TM28) VM15/112 002-863 | |
57. Spring, Idle Screw TM32-1, TM34-2 VM24/556 002-864 | |
57. Spring, Idle Screw TM38-85, TM38-86, TM39/41 Pro VM24/556 002-864 | |
58. O-Ring, Idle Screw TM24-8001, VM28-418 (TM28) VM14/75 002-676 | |
58. O-Ring, Idle Screw TM32-1, TM34-2, TM38-85, TM38-86, TM39/41 Pro BV32/04 002-212 | |
59. Washer TM24-8001, VM28-418 (TM28) VM14/87 002-866 | |
007-731This adjuster has threads on one end, the other end swivels. Includes rubber cap, locknut, cable adjuster and 90ยบ tube. Works on Keihin and Mikuni carburetor caps. The kit 007-731 contains: 002-061 rubber cap 002-065 nut 007-757 adjuster 007-759 90 degree threaded tube | |
TM POWER JET KIT | TM POWERJET KIT 002-041 The Power Jet Kit is used on 2-stroke engine applications to improve mid-range throttle response and add additional fuel to wide open throttle running conditions. Easily installs on TM series Carburetors (#80, #100 and #120 sized jets included). Sold as a kit. |
TM Cable Type Starter System Kit. Replaces knob plunger type starter system with a cable type starter system. Sold as a kit. Two Kits available: Order No. 002-351 Fits the following TM Carburetors: TM32, TM34, TM36, TM38 and 39mm Pro-Series, 41mm Pro-Series Includes items A - F. Order No. 002-353 Fits the following TM carburetor: VM28/418 (TM28) Includes items A - F. A. Starter Plunger Top, Rubber Cap VM26/46 002-061 B. Cable Adjuster M21/14 002-062 C. Cable Adjuster Locknut B30/247 002-065 D. Starter Plunger Fitting VM15/37 002-093 E. Starter Plunger Spring VM32/69 002-094 F. Starter Plunger (TM32-TM41) VM15SC4/85 002-095 Starter Plunger (TM28) VM15SC4/86 007-751 | |
TM Series Throttle valvesTM24 (TM24-8001) 3.0 832-30005 002-951 TM28 (VM28-418) 2.5 832-33001 002-804 TM32 (TM32-1) 4.0 832-39012 002-800 TM34 (TM34-2) 4.0 832-39012 002-800 Old Style TM 36, TM38 Carburetor with Top Idle Adjuster Rod TM36 (TM 36-2), TM38 (TM38-1, TM38 (TM38-3) 2.5 832-43002 002-734 No longer available 3.0 832-43002 002-735 No longer available 4.0 832-43002 002-737 5.0 832-43002 002-739 No longer available New Style TM 38 Carburetor, with Side Idle Adjuster Screw TM38 (TM38-85), TM38 (TM38-86) 2.5 832-43011 007-401 3.0 832-43011 007-402 3.5 832-43011 007-403 4.0 832-43011 007-404 4.5 832-43011 007-405 TM33 Pumper (TM33-8012) 1.5 832-38007 002-948 TM40 (HS40) Pumper (TM40-6) TM40/81 007-430 | |
NEEDLES |
- RS Series Tuning Component Guide All Mikuni AS Series Carburetor Kits are designed to be a bo-on application, and as such, are set up and jetted properly as sold for your particular motorcycle application. Carburetor Kits are jetted and tuned for use on a stock production model motorcycle or a production model motorcycle with bolt-on.
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Mikuni Motorcycle Carburetor Theory 101
Motorcycle carburetors look very complex, but with a little theory, you can tune your bike for maximum performance. All carburetors work under the basic principle of atmospheric pressure. Atmospheric pressure is a powerful force which exerts pressure on everything. It varies slightly but is generally considered to be 15 pounds per square inch (PSI). This means that atmospheric pressure is pressing on everything at 15 PSI. By varying the atmospheric pressure inside the engine and carburetor, we can change the pressure and make fuel and air flow.
Atmospheric pressure will force high pressure to low pressure. As the piston on a two stroke engine goes up (or goes down on a four stroke engine), a low pressure is formed inside the crankcase (above the piston on a four stroke). This low pressure also causes a low pressure inside the carburetor. Since the pressure is higher outside the engine and carburetor, air will rush inside the carburetor and engine until the pressure is equalized. The moving air going through the carburetor will pick up fuel and mix with the air.
Inside a carburetor is a venturi, fig 1. The venturi is a restriction inside the carburetor that forces air to speed up to get through. A river that suddenly narrows can be used to illustrate what happens inside a carb. The water in the river speeds up as it gets near the narrowed shores and will get faster if the river narrows even more. The same thing happens inside the carburetor. The air that is speeding up will cause atmospheric pressure to drop inside the carburetor. The faster the air moves, the lower the pressure inside the carburetor.
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FIG 1
RS Series Tuning Component Guide All Mikuni AS Series Carburetor Kits are designed to be a bo-on application, and as such, are set up and jetted properly as sold for your particular motorcycle application. Carburetor Kits are jetted and tuned for use on a stock production model motorcycle or a production model motorcycle with bolt-on. Interested in this product? Check out the full listing below for more information! Don't hesitate to contact us at: NicheCycle.com 727.342.5601 (General).
Most motorcycle carburetor circuits are governed by throttle position and not by engine speed.There are five main metering systems inside most motorcycle carburetors. These metering circuits overlap each other and they are:
* pilot circuit
* throttle valve
* needle jet and jet needle
* main jet
* choke circuit
* pilot circuit
* throttle valve
* needle jet and jet needle
* main jet
* choke circuit
The pilot circuit has two adjustable parts, fig 2. The pilot air screw and pilot jet. The air screw can be located either near the back side of the carburetor or near the front of the carburetor. If the screw is located near the back, it regulates how much air enters the circuit. If the screw is turned in, it reduces the amount of air and richens the mixture. If it is turned out, it opens the passage more and allows more air into the circuit which results in a lean mixture. If the screw is located near the front, it regulated fuel. The mixture will be leaner if it is screwed in and richer if screwed out. If the air screw has to be turned more than 2 turns out for best idling, the next smaller size pilot jet will be needed.
FIG 2
The pilot jet is the part which supplies most of the fuel at low throttle openings. It has a small hole in it which restricts fuel flow though it. Both the pilot air screw and pilot jet affects carburetion from idle to around 1/4 throttle.
The slide valve affects carburetion between 1/8 thru 1/2 throttle. It especially affects it between 1/8 and 1/4 and has a lesser affect up to 1/2. The slides come in various sizes and the size is determined by how much is cutaway from the backside of it, fig 3. The larger the cutaway, the leaner the mixture (since more air is allowed through it) and the smaller the cutaway, the richer the mixture will be. Throttle valves have numbers on them that explains how much the cutaway is. If there is a 3 stamped into the slide, it has a 3.0mm cutaway, while a 1 will have a 1.0mm cutaway (which will be richer than a 3).
FIG 3
The jet needle and needle jet affects carburetion from 1/4 thru 3/4 throttle. The jet needle is a long tapered rod that controls how much fuel can be drawn into the carburetor venturi. The thinner the taper, the richer the mixture. The thicker the taper, the leaner the mixture since the thicker taper will not allow as much fuel into the venturi as a leaner one. The tapers are designed very precisely to give different mixtures at different throttle openings. Jet needles have grooves cut into the top. A clip goes into one of these grooves and holds it from falling or moving from the slide. The clip position can be changed to make an engine run richer or leaner, fig 4. If the engine needs to run leaner, the clip would be moved higher. This will drop the needle farther down into the needle jet and cause less fuel to flow past it. If the clip is lowered, the jet needle is raised and the mixture will be richer.
The needle jet is where the jet needle slides into. Depending on the inside diameter of the needle jet, it will affect the jet needle. The needle jet and jet needle work together to control the fuel flow between the 1/8 thru 3/4 range. Most of the tuning for this range is done to the jet needle, and not the needle jet.
FIG 4
The main jet controls fuel flow from 3/4 thru full throttle, fig 5. Once the throttle is opened far enough, the jet needle is pulled high enough out of the needle jet and the size of the hole in the main jet begins to regulate fuel flow. Main jets have different size holes in them and the bigger the hole, the more fuel that will flow (and the richer the mixture). The higher the number on the main jet, the more fuel that can flow through it and the richer the mixture.
FIG 5