threenailz

I changed the plug, and it fired almost immediately. Then it cut out. Do I have a weak coil? Is my mixture needle not adjusted properly? After a few pulls i took the plug back out and it was wet. I think this is a carb issue, but i'm not eniterly sure.

Admin

Fluttering at high speed is commonly caused by reeds. It can also be caused by the ignition cutting out (not likely) or lack of fuel.

If the plug is wet then you're getting fuel. What else is done (mods) to the bike other than the black widow reeds?

It's really sounding like you have an air/fuel issue.

__________________

threenailz

The bike is bone stock, no upgrades as of yet. I want to get everything running and the engine broken in before I get too crazy. To rectify the ari/fuel issue would I adjust the screw on the carb inward, at a 1/4 to 1/2 turn at a time?
I am going to pull the plug again tomorrow and run the air compressor through the chamber to take out any fuel, and then try to run her again. Should I try this with the air filter off?
Also, is there anything I should be doing with the fuel filter?
I don't really have any experience with this sort of thing. I'm an elementary teacher and engines are not my thing, any help is always welcomed.

Admin

The screw on the stock carb does not adjust air/fuel mixture. It adjusts idle speed.

To improve fuel flow easily you're looking at putting on a new carb. It's possible you just need more fuel and a stock carb just isn't cutting it.

Give it a try with the air filter off first, make sure you're driving on a clean dry surface though. You can upgrade your air filter easily which should improve the air flow.

You can change the fuel filter, but it probaby isn't the cause of the issue. Stock fuel filters on many bikes are known to break easily, so this may be a change you want to do anyways.

__________________

threenailz

I really hope it is not a carb issue as I don't have the slightest clue on how to deal with that. Air filter - simple, fuel filter - simple, changing of the carb - complicated?!?

device

unless it sthe jets..like air leak..the red cag sealed properly?

threenailz

What? red cag sealed properly? I have no idea what that means, but.....I replaced the fuel filter to a GKI, spark plug to NKG, and changed all the hose lines, plus installed a new air filter. When I changed the plug I used the air compressor and tried to spray any remaining fuel out of the combustion chamber to allow for a clean start.

Once I did this I fiddled with the screw on the carb, I think it has something to do with how lean/rich your engine is running. I think the vibration from running the bike along with my tiny bit of expertise caused the screw to come loose, about 8 or so revolutions. I tightened it up and then backed it off about 2 1/2 revolutions and the bike started without incident.

I let the bike cool down and tried again, and it started again without incident. So, I took it for a ride, and again it was great, I think I may have even gained some speed.

Thanks for all the help guys. I hope someone else might find this post helpful in the future.

If I can do this, anyone can!

device

sorry reed cage behind the carb..where the rees are..is the air leak inthat gaskt..

frikin_bike!

well Device you were right about the O-ring I took the head off and there is a problem with it

Admin

As I said earlier, the idle screw only controls idle. If the screw is turned too much of course the bike isn't going to start because there isn't enough air/fuel. This screw only controls the air/fuel at idle.

__________________