Question about Honda CB 750 Motorcycles

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Firing order 3 6

Whats the firing order on a 1974 cb750 . the coil numbered 1 though 4. Is that how put them to the engine?

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  • Expert
  • 168 Answers

1-4 fire off one coil 2-3 fire off the other coil

Posted on Jun 15, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: Spark Plug wires

should be 1342 try it!

Good luck .

Knight (yamaha XJ750 R 1981)

Posted on Apr 17, 2009

  • 42 Answers

SOURCE: i have a 1974 cb750 and one day i was riding and

Sounds like you had an exhaust valve tighten up, check them at TDC top dead center by removing the alternator cover derby, put the bike in neutral, turn the flywheel in correct direction (arrow on it) until the TDC marks for 1 and 3 are aligned, check ex valves .003" or if you can barely feel them move is how I adjust them. :) If you lose compression or fire on a cylinder it becomes an oil syphon that will cause blue smoke and backfire as you had. It could also be a set of points closed up or a bad capacitor on the points. Intake valves are .002" .

Posted on Oct 08, 2009

DoubleClutch
  • 376 Answers

SOURCE: miss fire on number 1 cyl

I would have to say that I think it's not miss fireing.
It could be the coil for those 2 cyclinders. It could be in the carbs. When you cleaned the carbs did you remove them from the engine and dismantel them completly? Clean every parts and blow out all the air and fuel ports. Did you seperate the carbs from each other? If you did the carbs will need to be synced again. Good Luck.

Posted on Oct 16, 2009

Porrelli
  • 167 Answers

SOURCE: timing & firing issues

G'day. I can help you here! On all early model japanese 4 cylinder motorcycles,
number 1 & 4 cylinders share one coil( the left hand coil as seen while sitting on bike). Number 2 & 3 cylinders shares the other.

L/H coil- 1 & 4
R/H coil-2 & 3

Hope this helps
Regards Andrew Porrelli

Posted on Mar 31, 2010

  • 921 Answers

SOURCE: #1 and #4 coil not firing.it is a 2002 600 katana

check pulse coil generator system...i had a similar problem and found out that one of the two pickups was burnt. mine was on the left side of the bike under side case cover but i just followed the wire harness up till i got to the first disconnect and ohmd out the four wires looking for 400-450 ohms...well i only got 136ohms on one and the other was completely open. Also make sure your getting 12v to the coil... turn key on and just probe the little wires on the coil till you find it. then you'll know that its not a broken wire at least. Can i get some feed back, Thanks!

Posted on Apr 21, 2010

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Firing Order: the firing order is 1-2-4-3. There is no distributor for the engine, as ignition is controlled electronically.

Extra Ignition Information: there are only two ignition coils for this engine. Each coil has two spark plug wires. One coil fires cylinders 1 and 4. The other fires cylinders 2 and 3

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1-2-3-4-5-6 2000 Chrysler Grand Voyager SE 3.3L R Gas engine. Here's the spark plug firing order or how to put the spark plug wires back on information: When standing on the passenger side of the van, where the fan belt is, the pistons on the left side or back of engine, are numbered 1, 3, 5 (1 is closest to you, 3 in middle, 5 is on drivers side). On the right side of the engine, or front of the van they're numbered 2, 4, 6 (2 is on passengers side, 4 is in middle, & 6 is on drivers side). The coil pack on my van is already numbered, just brush the dirt off and put the number 1 piston's spark plug wire to the #1 pin on the coil pack, etc. In case yours isn't numbered, here's the numbering of the coil pack from top left, across to the top right is 3, 1, 5, and then from bottom left, to bottom right is 6,4,2.

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Firing order on cb750 1974 honda


left coil feeds 1 and 4...right coil feeds 2 and 3...as long as you stick to this it doesn't matter which lead goes to which plug. Left coil will have one short lead and one long...short =1...long = 4. Right coil leads will be about even in length...doesn't matter which goes to 2 or 3.
It's a wasted spark system so plugs 1 and 4 fire together...2 and 3 fire together...only 1 cylinder in each pair will be compressed and ready to fire when the spark happens, the other will be empty and coming on to it's inlet stroke...

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Firing Order: 1-3-4-2

3.1 liter:

Firing Order: 1-2-3-4-5-6
jturcotte_599.jpg

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I need to know what the cylinder # are and what the fireing order is


In the 4 cylinder the firing order is 1,3,4,2 and the cylinders are numbered 1,2,3,4 from the Passenger side to the drivers side.

In a V6 the firing order is 1,6,5,4,3,2 and the cylinders are numbered 1,3,5 in the front from the passenger side to the drivers side and 2,4,6 in the back from the passengers side to the drivers side.

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What order the wires go on distributor cap


1974 Cadillac Eldorado 8.2L 4BL 8cyl

2c4b84a.jpg

GM (Cadillac) 368, 425, 472, 500 V8. Engine firing order: 1-5-6-3-4-2-7-8. Distributor rotation: clockwise


bf1e338.jpg

GM (Cadillac) 429 V8. Engine firing order: 1-8-7-2-6-5-4-3. Distributor rotation: clockwise

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Firing order need to know what plug is number 1 and what plug on coil pack is number 1


For the 1993 Chevy Lumina:
I do not know if you have the 2.2L In-Line 4 Cylinder, 3.1L V6, or 3.4L DOHC V6 Engine; however I have included all below.

For the 2.2L (4-Cylinder)
Firing Order:
1-3-4-2
Cylinders:
......(back)
1.....2.....3.....4
......(front)
Ignition Coil Connections:
o <---4
...o <---1
.........
......o <----3
.........o <----2

For the 3.1L V6:
Cylinders:
...(back)
5.............6
3.............4
1.............2
....(front)
Ignition Coil Connections:
.|.1..4.|..|.6..3.|..|.2..5.|


For the 3.4L DOHC V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
.......(back)
1........3.........5
2........4.........6
.......(front)
Ignition Coil Connections:
.|.1..4.|..|.3..6.|..|.2..5.|

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!


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2 Answers

Need firing order and, I need to know what side the number one piston is on?


To avoid confusion, remove and tag the spark plug wires one at a time, for replacement.

The 3.5L (VIN H) engine's unique ignition system has the ignition coils directly over each plug. No spark plug wires are used.
If a coil is replaced on any of the 3.1L, 3.4L or 3.8L engines, it may not be numbered, as is the factory coil. For this reason it is imperative that you label all wires before disconnecting any of them. Also, before removal, compare the current wiring with the accompanying illustrations. If the current wiring does not match, make notes in your guide to reflect how your engine is wired.

f6067f3.jpg

Fig. 3.1L (VIN M) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System

0726c45.jpg

Fig. 3.4L (VIN X) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System

0476e1c.jpg

Fig. 3.4L (VIN E) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System

174502a.jpg

Fig. 3.5L (VIN H) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System

69d9a4f.jpg

Fig. 3.8L (VIN 1) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System

806db5e.jpg

Fig. 3.8L (VIN K) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System

The firing order for the 3.1L VIN M, 3.4L VIN E, 3.4L VIN X and 3.5L VIN H engines is 1-2-3-4-5-6. The right bank cylinders are on the cowl side (rear) of the engine compartment and are numbered 1,3,5, left bank cylinders on the front side of the vehicle, are numbered 2,4,6.
The firing order for the 3.8L VIN K and 3.8L VIN 1 engines is 1-6-5-4-3-2. Starting at the front of the engine, cylinders in the left bank are numbered 1,3,5 and cylinders in the right bank are numbered 2,4,6

Hope helped (remember rated this help) Good luck.


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1 Answer

Ignition firing order and cable position at the coils


The 3.5L (VIN H) engine's unique ignition system has the ignition coils directly over each plug. No spark plug wires are used.

63b44ad.jpg


3.5L (VIN H) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System



The firing order for the 3.1L VIN M, 3.4L VIN E, 3.4L VIN X and 3.5L VIN H engines is 1-2-3-4-5-6. The right bank cylinders are on the cowl side (rear) of the engine compartment and are numbered 1,3,5, left bank cylinders on the front side of the vehicle, are numbered 2,4,6.


f3c010c.jpg

3.1L (VIN M) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System



e2e44c2.jpg

3.4L (VIN X) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System



81eff27.jpg

3.4L (VIN E) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System




The firing order for the 3.8L VIN K and 3.8L VIN 1 engines is 1-6-5-4-3-2. Starting at the front of the engine, cylinders in the left bank are numbered 1,3,5 and cylinders in the right bank are numbered 2,4,6.



50dbf18.jpg


3.8L (VIN 1) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System






6f4033f.jpg


3.8L (VIN K) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System


I hope help you with this, remember rated this help. Good luck.

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