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Author Topic: 750 won't shift into gear  (Read 527 times)

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Offline lhemrick

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750 won't shift into gear
« on: February 09, 2020, 11:34:05 AM »
I have a 1977 Honda cb750. I went to go for a ride today and it won't shift into gear. It acts like it is stuck in neutral. All I did last was replace the left side cover gasket because it was leaking. You can pull up on the change pedal but it will not budge when you try to push down.
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Don't give up; Rust is only Temporary!
77 Honda CB750
70 Honda CB350 twin
71 Honda CB350 twin
72 Honda CB350 Four
72 Honda CB175
81 KZ550C2
81 KZ750H2
82 KZ750M1 CSR
84 ZN700 Shaft

Offline BenelliSEI

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Re: 750 won't shift into gear
« Reply #1 on: February 09, 2020, 12:01:41 PM »
You were in there and now it isn’t working? Seems connected. Pull the cover off, put the shifter back on and see what is not engaged correctly..........
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Offline PeWe

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Re: 750 won't shift into gear
« Reply #2 on: February 09, 2020, 12:03:59 PM »
Open the cover and try gear without cover. Something must block the movement. The arm might be out from the drum it should move.
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline lhemrick

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Re: 750 won't shift into gear
« Reply #3 on: February 09, 2020, 01:04:03 PM »
Got it! The shift arm wasn't on the drum. Must have gotten knocked off when I was cleaning my gasket surface. Guess I should have opened it back up and looked before I spoke. Thanks!
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Don't give up; Rust is only Temporary!
77 Honda CB750
70 Honda CB350 twin
71 Honda CB350 twin
72 Honda CB350 Four
72 Honda CB175
81 KZ550C2
81 KZ750H2
82 KZ750M1 CSR
84 ZN700 Shaft

Offline BenelliSEI

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  • 1969 cb750
Re: 750 won't shift into gear
« Reply #4 on: February 09, 2020, 04:13:00 PM »
Always try the easy fix first!
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Offline HondaMan

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Re: 750 won't shift into gear
« Reply #5 on: February 09, 2020, 06:39:17 PM »
Quote from: BenelliSEI on February 09, 2020, 04:13:00 PM
Always try the easy fix first!

+1!
That's usually all that is wrong with these bikes.. :D
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Offline PeWe

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Re: 750 won't shift into gear
« Reply #6 on: February 09, 2020, 08:58:38 PM »
Good info to the knowledge database people can find whwn searching :)
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967
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