Revs all over the place....? Help
Forum rules
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
-
Sam
- Settled in member
- Posts: 60
- Joined: Wed Apr 30, 2008 5:20 pm
Revs all over the place....? Help
I recently cleaned the carbs and fitted them. Got it running. I found that after 4k the revs are fine and pick up just fine but as soon as i get off the throttle and get to 4k rpm it doesnt get back down to 0rpm easily and once it gets the needle just moves up and down a fair bit.
What could it be? The vaccum hose has been renewed.
Thoughts?
Thanks.
What could it be? The vaccum hose has been renewed.
Thoughts?
Thanks.
-
Neosophist
- Moderators
- Posts: 8172
- Joined: Fri Jul 04, 2008 1:01 pm
- Bike owned: CBR954
Re: Revs all over the place....? Help
Air leak between the carbs and the engine.
Happens a lot on old rubbers. While it's running if you blast around the rubbers with brake / clutch cleaner or easy-start (somethign flammable) you'll find the air-leak when the RPM's change
Happens a lot on old rubbers. While it's running if you blast around the rubbers with brake / clutch cleaner or easy-start (somethign flammable) you'll find the air-leak when the RPM's change
xivlia wrote:i dont go fast on this bike so really do not need a rear brake.. /
vic-vtrvfr wrote:Ask xivlia for help, he's tackled just about every problem u could think of...
-
Sam
- Settled in member
- Posts: 60
- Joined: Wed Apr 30, 2008 5:20 pm
Re: Revs all over the place....? Help
Whats happen after spraying this stuff if there is a leak? Bubbling?Neosophist wrote:blast around the rubbers with brake / clutch cleaner or easy-start (somethign flammable) you'll find the air-leak when the RPM's change
-
Harvd
- Settled in member
- Posts: 59
- Joined: Thu Jan 21, 2010 7:03 am
- Bike owned: NC35
Re: Revs all over the place....? Help
Your revs should jump up
-
Neosophist
- Moderators
- Posts: 8172
- Joined: Fri Jul 04, 2008 1:01 pm
- Bike owned: CBR954
Re: Revs all over the place....? Help
Neosophist wrote:Air leak between the carbs and the engine.
Happens a lot on old rubbers. While it's running if you blast around the rubbers with brake / clutch cleaner or easy-start (somethign flammable) you'll find the air-leak when the RPM's change
xivlia wrote:i dont go fast on this bike so really do not need a rear brake.. /
vic-vtrvfr wrote:Ask xivlia for help, he's tackled just about every problem u could think of...