Today is not my day...more issues

[Frank Castle]

Hi
as you guys know, i changed my carb for a new one and also changed my fuel line. my hard start issue stopped so the hard start was cause of the carb. i was having idle issues but i managed to fix it. so after 2 days of enjoying my scooter with the new upgrades, all of a sudden my scooter does not want to stay on, when i let go of the throttle it stops? and not only that sometimes when i start my scoot there is a really loud metal on metal grinding noise for like a second, i think its the starter, i think i want to shoot myself now, 2 problems back to back

by the way,
* i checked all the hoses for holes
* checked to see if the plug was plugged
* cant be my fuel pump cause i can see it working with my transparent fuel line,
* its not the fuel filter, carb or fuel line (all new)
* played with the mixture and idle but nothing happened

[Frank Castle]

* not the cdi, just checked it

[Cubby1331]

When you let go of the throttle and it dies it sounds like a vacuum issue maybe with the petcock. Cause that little guy controls the fuel.

Also a question to help me with your 2nd problem
You said that you changed the Carb. Did you have this grinding noise before you replaced the Carb?

[Frank Castle]

Originally Posted by Cubby1331

When you let go of the throttle and it dies it sounds like a vacuum issue maybe with the petcock. Cause that little guy controls the fuel.

Also a question to help me with your 2nd problem
You said that you changed the Carb. Did you have this grinding noise before you replaced the Carb?

the fuel petcock is working, my fuel line is transparent and i could see it working...yes, i had that noise before the new carb but it does it alot. Before it was once in a while

[Cubby1331]

I mean the vacuum side cause when you throttle you create a difference in pressure. Make sure you have good vacuum cause that can cause problems like you are experiencing.

As for the Grinding noise problem. You said it got worse after you changed the carb out. I would start looking there. Since it happens more often since the swap. That would be the best place to start looking

[Frank Castle]

Originally Posted by Cubby1331

I mean the vacuum side cause when you throttle you create a difference in pressure. Make sure you have good vacuum cause that can cause problems like you are experiencing.

As for the Grinding noise problem. You said it got worse after you changed the carb out. I would start looking there. Since it happens more often since the swap. That would be the best place to start looking

really? u think its the carb even thou its new? for some reason i think its the starter or something wrong with the fuel mixture, i really dont know, im gonna throw the towel on this one and take it to my local motorcycle mechanic shop by my house, i tried being mr. mechanic but it just lasted 2 days...lol

[Cubby1331]

You said it happened more once you replaced the carb. it could be a bum carb or something that you must of did hey we are all human. I made mistakes when I worked with mercedes. One time I was doing an oil change I forgot to put the drain plug back in and we will just say 8 quarts of oil ended up on the floor and I was made the butt of some jokes for a while lol. When you get the report back please share with us all

[kz1000st]

Have you checked the valve clearances? Odd running is often caused by that.

[Frank Castle]

Originally Posted by kz1000st

Have you checked the valve clearances? Odd running is often caused by that.

i have not, been meaning to do it

[Frank Castle]

won't stay on and weird loud clanking noise when starting? here is a video of my new issue::

[antchainscoot]

Try spraying some starting fluid into the air intake. I would also clean (if washable foam) or replace the air filter.

[Frank Castle]

Originally Posted by antchainscoot

Try spraying some starting fluid into the air intake. I would also clean (if washable foam) or replace the air filter.

i checked the air filter, its pretty clean

[kz1000st]

The clanking noise sounds like your starter gear disengaging and re-engaging. Try charging the battery and see if that helps. The dying is hard. I would try spraying starter fluid in the carburetor intake and see if that keeps it running. If it does you have crap in the carb.

[blueboy5000]

1) make sure throttle is adjusted correctly. you shouldn't have much play in the throttle cable. You adjust this by using the two nuts on the throttle-cable housing attached to the carb,

2) turn up the idle. The bike should idle around 2000-2200 rpms when cold started, and should drop to 1800 or so after 5 minutes. But right now you just want a fast idle so you can adjust the bike's carb. The idle screw is the screw with a spring on it right that makes contact with the throttle cable.

3) if you have not done so, seat the mixture screw and tun it counter-clockwise (left) 2 and 1/2 turns.

4) let bike run 10 minutes. After bike has remained running for ten minutes, turn mixture crew 1/4 turn to left. wait five seconds, listen for RPM increase. Repeat until rpms do not rise. turn CLOCKWISE 1/2 turn EXACTLY. This is a SLIGHTLY RICH mixture. This is where your mixture should be for optimum performance.

5) set idle using idle screw to 1800 rpms.

[Frank Castle]

Originally Posted by blueboy5000

1) make sure throttle is adjusted correctly. you shouldn't have much play in the throttle cable. You adjust this by using the two nuts on the throttle-cable housing attached to the carb,

2) turn up the idle. The bike should idle around 2000-2200 rpms when cold started, and should drop to 1800 or so after 5 minutes. But right now you just want a fast idle so you can adjust the bike's carb. The idle screw is the screw with a spring on it right that makes contact with the throttle cable.

3) if you have not done so, seat the mixture screw and tun it counter-clockwise (left) 2 and 1/2 turns.

4) let bike run 10 minutes. After bike has remained running for ten minutes, turn mixture crew 1/4 turn to left. wait five seconds, listen for RPM increase. Repeat until rpms do not rise. turn CLOCKWISE 1/2 turn EXACTLY. This is a SLIGHTLY RICH mixture. This is where your mixture should be for optimum performance.

5) set idle using idle screw to 1800 rpms.

i did all that but now the bike does not even stay on? after i changed the carb the bike lasted only 2 days fine and now it doesnt want to stay on, when i let go of the throttle it turns off. too late now, its in the mechanic shop as we speak.