Bleeding the clutch on an 84 nighthawk 650

89sparks · 08-14-2008, 11:35 AM

Alright, I'm pretty new to motorcycles and I have a hydraulic clutch on my cb650sc. I drove it for the first few days when I bought it and the clutch felt fine but like I said, I'm new to the game so it may not have been right. But i noticed one night that the clutch will sometimes not fully free when the clutch handle is held in all the way so I checked the fluid and sure enough it was basically empty. I filled the resevoir but I know I need to bleed the lines.

Can anyone help me with how this is done? I know how to bleed A clutch, I just need to know how to bleed THIS clutch. Thanks.

MSchu · 08-14-2008, 11:46 AM

Its the same as any other hydraulic system...

pump the lever until you build pressure, hold the lever, unscrew the bleed screw, release the air in the system, tighten the bleed screw, release the lever...

Do this a few times (At least twice) until you have good pressure and function at the lever

89sparks · 08-14-2008, 11:48 AM

Thanks for the reply, but I don't know where the clutch fluid line goes to. I'm trying to follow it but I lose it underneath the gas tank

I know I'm a newb

MSchu · 08-14-2008, 12:19 PM

More than likely on your bike it is down by the clutch(I don't know your bikes layout specifically)... look for a bleed screw, that really is the only thing it could be by the clutch and a bleed screw

Are you sure the 84 nighthawk has a hydraulic clutch? I know some guys on here have owned that bike

89sparks · 08-14-2008, 12:25 PM

Positive that my bike has a hydraulic clutch. I know my buddies 85 nighthawk 450 is a cable clutch and chain driven. My 84 nighthawk 650 is a hydraulic clutch and driveshaft driven

iLude · 08-14-2008, 01:11 PM

Yeah, its hydraulic.

I've done this too... but I can't remember. Just follow the line down and you'll hit the bleeder for it, its right in front of the clutch itself IIRC. Other than that, it's pretty straight forward. Took me like 10 minutes to do.

08-14-2008, 11:35 AM	#1
89sparks Junior Member Garage is empty, add now Join Date: Mar 2007 Location: Milwaukee, Wi, USA Posts: 588 iTrader Rating: (0)	Bleeding the clutch on an 84 nighthawk 650 Alright, I'm pretty new to motorcycles and I have a hydraulic clutch on my cb650sc. I drove it for the first few days when I bought it and the clutch felt fine but like I said, I'm new to the game so it may not have been right. But i noticed one night that the clutch will sometimes not fully free when the clutch handle is held in all the way so I checked the fluid and sure enough it was basically empty. I filled the resevoir but I know I need to bleed the lines. Can anyone help me with how this is done? I know how to bleed A clutch, I just need to know how to bleed THIS clutch. Thanks. __________________ DC Squad member #677 99 Integra LS for sale.... just check it out (full type r swap) http://www.hondamarketplace.co...25155

08-14-2008, 11:48 AM	#3
89sparks Junior Member Garage is empty, add now Join Date: Mar 2007 Location: Milwaukee, Wi, USA Posts: 588 iTrader Rating: (0)	Thanks for the reply, but I don't know where the clutch fluid line goes to. I'm trying to follow it but I lose it underneath the gas tank I know I'm a newb __________________ DC Squad member #677 99 Integra LS for sale.... just check it out (full type r swap) http://www.hondamarketplace.co...25155

08-14-2008, 12:25 PM	#5
89sparks Junior Member Garage is empty, add now Join Date: Mar 2007 Location: Milwaukee, Wi, USA Posts: 588 iTrader Rating: (0)	Positive that my bike has a hydraulic clutch. I know my buddies 85 nighthawk 450 is a cable clutch and chain driven. My 84 nighthawk 650 is a hydraulic clutch and driveshaft driven __________________ DC Squad member #677 99 Integra LS for sale.... just check it out (full type r swap) http://www.hondamarketplace.co...25155

08-14-2008, 01:11 PM	#6
iLude Honda-Tech Member Garage is empty, add now Join Date: Aug 2005 Location: Milwaukee, WI, USA Posts: 1,167 iTrader Rating: (0)	Re: (89sparks) Yeah, its hydraulic. I've done this too... but I can't remember. Just follow the line down and you'll hit the bleeder for it, its right in front of the clutch itself IIRC. Other than that, it's pretty straight forward. Took me like 10 minutes to do. __________________ - Eric 2005 Subaru Legacy GT Stage II \| 1979 Kawasaki KZ650 Cafe Project 1994 Honda Prelude VTEC (SOLD) \| 2002 Honda CBR600F4i (SOLD)

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Bleeding the clutch on an 84 nighthawk 650