SebastianP
CB750 Member
Hi there I’ve got a Cb750 1991 but my bike keeps cutting off Power aha anything when trying to put it gear
-
🎁 Enter the Septemeber Vintage CB750 gift card giveaway! It's easy... Click here, post something, and you're entered into the drawing!
Cuts out when put into gear
- Thread starter SebastianP
- Start date
Your clutch switch is bad.
SebastianP
CB750 Member
It’s new
Check the kickstand switch. Bike might think the kick stand is out.
SebastianP
CB750 Member
Rodger that I have rebuilt with an m unit and forgot to had a relay wire from the icm to the m unit for that stand
Well, I got one for everyone. When pulling in the clutch lever the starter will not engage (starts fine in neutral). I replaced the starter solenoid recently because it was bad with a cheap $15 one since I could not find OEM anywhere. So anyone have advice before I tear into it seriously? There's good advice out here and getting lazy in restoring. 1981 CB750K. TIA appreciate it.
Walter
CB750 Enthusiast
Motorcycles should only start in neutral. If starts in neutral and pull in clutch and when shifting into 1st. Clutch is not fully engaged. Adjust screw at bottom by clutch cover
Walter/Houston
Walter/Houston
I take it the bike doesn't lurch forward when it dies after putting it into gear? it just stops running?
I have to ask, is your kickstand down when putting it into gear? If the kickstand isn't an issue, you may have an m-unit specific wiring issue.
I have to ask, is your kickstand down when putting it into gear? If the kickstand isn't an issue, you may have an m-unit specific wiring issue.
The bike does not move forward when clutch lever is pulled but attempting to start with the key on and the clutch pulled the selenoid or starter will not engage. As stated I changed out the starter selenoid with a newer $15.00 one. The bike starts fine when in neutral with cheap selenoid just not with key-on, pulling in the clutch and hitting starter button as it should. No schematics with the cheap selenoid so I don't know how it's wired. If memory serves me that a couple of wires need to be re-oriented in the connector, but damed if I can find it now. TIA
PS There is no Kickstand Safety Switch. 1981 CB750K. If there is I'll go play on the street with heavy traffic. Wait I'm riding a bike so doing that anyways.
PS There is no Kickstand Safety Switch. 1981 CB750K. If there is I'll go play on the street with heavy traffic. Wait I'm riding a bike so doing that anyways.
I'm with Brett, I'd check the clutch switch, even if it is new. May not be installed just right, might be a wonky connection, or might be a bad switch right out of the box. Stranger things have happened. Not sure when they went to a kickstand switch, my '79 doesn't have one.
Ohm-d out the clutch handlebar switch, and it is fine. When troubleshooting, i usually go back to "What was the last thing you did?" as a start, which was to change out the starter relay, which was bad. I bought the cheap one that everyone is selling now, it appears. The OEM relay was $129.00 compared to $15.00. Somewhere in my brain archives, I seem to remember that the newer relays need to have a couple of wires reoriented, but I can't find that info now. Sure i can figure it out,, but I thought I would throw out the question here. thanks for all the replies
When you checked the switch, did you verify continuity when it was depressed?
How about continuity from the wires of the switch to their ends?
Similar Threads
