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1984 CBX750 F neutral switch problem

The problem I have is that the neutral switch shaft coming off the end of the shift drum has had both of the tabs (that the pin on the switch should go into) broken off. I didn't think it was a big prob. until I realised that I would have to replace the shift drum, which would mean stripping the motor down to seperate the cases, just for a neutral light for RWC. I was hoping that someone might have another less taxing solution.

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Posted on Jan 02, 2017

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SOURCE: 1986 yamaha big bear 350 cc will shift up but will

Its most likely to be the external part of the shift mechanism & therefore it would not need the transmission stripped
It is probably just 1 of the springs on the shift claw that is broken - this explains why it only shifts 1 way

Ride safe
Please mark this as very helpful (if it has been!!)
I am available on 'Live Chat' at the moment if you need more assistance

Posted on Apr 30, 2010

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SOURCE: Shiftshaft on 1996 Royal Star - Updated?

When you say "pin holder", I'm assuming that you mean the part that Yamaha refers to as the segment - it holds 5 short and one long dowel pin at the end of the shift cam assembly. In 1996 the segment part number was 26H-18185-00-00, it held five 93604-17198 dowel pins, one 93604-21197-00 dowel pin and a 26H-18561-01-00 side plate. However, in 1998 the segment part number 4NK-18185-00-00 held five 93604-12037-00 dowel pins and one 93604-16092-00 dowel pin; the side plate had been eliminated. The shift shaft for the early combination was 4NK-18101-00-00, for the later combination 4NK-18101-01-00. If you recognize the "pin holder" part number, you will know which shift shaft you should be using.

Posted on Jul 28, 2010

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1984 Honda Shadow vt700c I only have first gear and neutral.

Hi, Jay and the usual suspects are:
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Hi, Brad and the usual suspects are:
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I have a 91 yamaha big bear 350 4x4 electric start no pull start. question is bike only starts when in nuetral and the green light is on. i put the bike in nuetral but the light dosent come on and i cant...

The neutral safety switch is located in front of the shift shaft on the left hand side of the quad. It's an egg shaped, plastic , held on by two phillips screws. When you remove it, there is a brass pin with a spring under it in the end of the shift drum. If you look at the switch, there is a brass spot where these two things connect when it's in neutral. That makes a connection completes the fault circuit to allow the starter solenoid to engage. Check the condition of the spring and pin, make sure that it has enough pressure and length to hit the switch. If that seems fine, ground a temporary wire to the motor, put the bike in neutral and turn the ignition on. Touch the temporary wire to the brass dot on the switch and see if the light comes on. If it does, replace the spring and pin. If it doesn't, replace them all, the switch is bad and the spring and pin are subject to wear and pretty cheap. Good luck!

Jun 13, 2011 | Yamaha XS 650 E Motorcycles

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I have an 04 yz 125 that won't shift into 2nd but

2nd gear is at the bottom of the shafts if the tranny is stacked in the mag side case. So it is controlled by the bottom fork. You should be able to shift it thru all the gears by turning the shift drum. Make sure as you shift the shafts stay all the way in the output shaft and idler shaft bearings. As you shift it, look for full mesh between the wheels(shaft that goes to the clutch) and the gears across on the output shaft.
If that all looks good, the shifter cluster(on the end of the shift drum, with the 2 dogs that engage the notched wheel on the end of the drum) may not be lined up properly. If the gears and shift drum are new, I'm thinking I'd look there first. Good luck!

Jun 11, 2011 | 2004 Yamaha YZ 125

1 Answer

I have a Kawasaki zx550A1 (GPz550), it shifts into 1st and 2nd just fine but won't shift any higher. It's almost like there is no more gears.

The bike has a bent shift fork in the transmission. You describe the classic symptoms. The engine will have to come out of the frame. Then it gets flipped upside down, right and left side covers, shift shaft, and other components are removed, then the bottom half of the gearbox is removed. This allows access to the shift drum and shift forks. There are some special tools needed and I don't recommend a novice mechanic tackles the job. Below is a diagram of how the shift drum moves the shift forks left and right to make a slider gear engage different gears. Please rate my answer. Thanks. tombones49_119.gif

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1 Answer

1984 chevy k20 4x4 stuck in low lock

i'm trying to remember my 84 was that the new process 203 or 208 ? on the trasfercase i do believe it has two shift shafts and one of those have to be 1/2 out in like a neutral position for the other to shift from hi and low. do you have manual hubs or automatic on that. Block wheels put vehicle in neutral, climb under trk and check linkage take a hammer and pry bar with you.

Jan 11, 2011 | 1984 Chevrolet Chevy

2 Answers

Where is the neutral safty on 84 s10

this is incorporated into the switch on the left side of transmission where the shift linkage goes through, if this is a stick shift it will be above the clutch pedal. cheers

Jan 23, 2010 | 1984 Chevrolet Chevy

1 Answer

How to replace nuetral safety switch

Automatic Transmission The back-up light switch on 1995-98 models is incorporated into the neutral/park safety switch. The back-up light switch on 1988-94 models is mounted in the steering column and is covered in Section 8 of this manual. This procedure applies to 1995-98 models only.
  1. Place the transmission in park and disconnect the negative battery cable.
  2. Raise the vehicle and support it with jack stands.
  3. Disconnect the shift cable end from the shift control lever and remove the nut securing the shift control lever to the manual shaft.
  4. Unplug the electrical connector from the switch and remove the switch retainers.
  5. Remove the switch from the transmission.
To install:
This adjustment is performed with the switch removed from the vehicle. Neutral position tool J 41364-A or its equivalent is required for this procedure.
  1. Position tool J 41364-A or its equivalent onto the park/neutral switch. make sure that the slots on the switch are lined up with the lower tabs on the tool.
  2. Rotate the tool until the upper locator pin on the tool is lined with the slot on the top of the switch. Do not remove the tool from the switch
Before sliding the switch onto the shaft, it may be necessary to lightly file the outer edge of the shafts to remove any burrs.
  1. Align the switch hub flats with the manual shaft flats, then slide the switch onto the shaft until the switch mounting bracket contacts the mounting bosses on the transmission.
  2. Install the switch and tighten the switch retainers. Tighten the switch retainers to 20 ft. lbs. (27 Nm).
  3. Remove the adjustment tool.
  4. Engage the electrical connector and install the control lever to the manual shaft.
  5. Install the control lever nut and tighten to 20 ft. lbs. (27 Nm).
  6. Lower the vehicle and connect the negative battery cable.
  7. Check the switch for proper operation. The vehicle should start in P or N only.
  8. If adjustment is required, loosen the switch retaining bolts and rotate the switch slightly, tighten the bolts and check switch operation.

Dec 07, 2009 | 1993 GMC Suburban

1 Answer

Transmission question and more

You want the shift drum in to be in neutral. Rotate the shift drum to the point where the sprocket shaft is not turning when the main shaft turns. You are now in neutral. From there you can shift through all the gears by rotating the main shaft as you turn the shift drum to change gears.

Please rate this solution. Thanks!

Apr 12, 2009 | kawasaki KX 125 Motorcycles

1 Answer

02' XR200 won't shift into any gear

With the right side case removed, you will see the shifter shaft with an arm attached to the shaft and at the end of the arm will be a 1.5" long lever, ( called a "pawl" ), with a kind of hook on each inside end. There should also be a small spring attached to the lever. The lever should be engaged to a round shaft of about 1.5" diameter. The shaft I just mentioned is actually the end of the shift drum.
On rare occasions the spring will break or get out of place. Check it out. Another possibility is that the shift drum may have dropped a pin or two. The pins I refer to are what the pawl pushes or pulls on to rotate the shift drum. Move the foot shift lever up and down and you should see the mechanical action I'm referring to. IF I remember correctly, your bike has a drum that could allow a pin or pins to drop out if the end cap on the drum comes loose. No pins = no shifting.
Check things out and post a comment as to what you find out. Also, any other questions you may have after looking at the stuff mentioned. When all is done, please post a rating of my answer. Thanks.

Mar 16, 2009 | 2002 Honda XR 200

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