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General Category >> Rubber Side Down! >> My restoration
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Message started by 1geo1 on 08/02/20 at 19:02:39

Title: My restoration
Post by 1geo1 on 08/02/20 at 19:02:39

It started as a take apart the least amount, do some paint, WTH, I just wanted it to run, now I am actually looking at a frame off. Anyone been there ? Yikes ! I need all of you now, lol? Actually yeah, I need you guys/girls . Oh, most important , 2004, 7k us on the odo. 650 Savage, of course having carb problems ( too rich, better than too lean ) did the spacer and all of the tricks, btw ;) My idle screw does nothing, even when I turn it all the way down.
More fun facts, all of the body is off but I can still make it run with my temp setup.

Title: Re: My restoration
Post by justin_o_guy2 on 08/02/20 at 19:10:13

My idle screw does nothing, even when I turn it all the way down.

Idle screw doesnt change rpm on it?

Ot Idle AIR screw>?

Idle air requires a Low Idle and a warmed up motor,,
Dont leave it on the sidestand,, idling,,

What is
All the way DOWN??

AS IN,, RPM should be dropping?
Screwed all the way in?

Title: Re: My restoration
Post by 1geo1 on 08/02/20 at 19:19:23

From what I heard, it is really bad to leave rpm low, so, right now, I can not do that, I need to do my paint and bodywork, however, I have structured a secure fuel tank for testing. I can get yhe bike to run well but it is not happy on a rev, lots of backfire, lots off lag in throttle

Title: Re: My restoration
Post by 1geo1 on 08/02/20 at 19:28:18

screw all the way in, nothing, no change, is time to rebuild my factory carb and start over ?

Title: Re: My restoration
Post by norm92de on 08/02/20 at 21:26:52

You can't ride it now that you have the tank off.

It needs to be properly warmed up and then with the idle set very low adjust the idle mixture for best idle. After you have set the idle mixture screw adjust the idle up to the proper speed 1200 RPM, more but not less. Don't ask me how since you don't have a tach. It should idle smoothly and not anywhere near to stalling. Higher is better than lower for the idle speed.

I have a tachometer on my bike and I set it around 1500/1600 RPM. No problem.

Title: Re: My restoration
Post by Dave on 08/03/20 at 04:28:01

Adjusting the idle fuel mixture screw requires you to set the idle down around 800 rpm. This should only be done on a warm motor, with the bike held vertical (not on the side stand).

When the idle is up around the recommended 1,100 rpm, the engine is not only getting fuel from the idle circuit, it is also getting fuel/air mixture from the needle jet circuit - this prevents you from being able to adjust the idle mixture.

Warm the bike up thoroughly by going on a 10 minute ride, then while holding the bike upright drop the idle speed down, then adjust the mixture screw. If you can turn the screw all the way in and the engine still runs smoothly you need a small pilot jet. If you can turn the screw more than 3 turns out and the engine still runs smooth you need a larger pilot jet. If the smoothest running occurs at 1.5 - 2.5 turns out then the pilot jet is correct.

The pilot jet most likely should be a #50 or #52.5 - I feel that a #55 is just too big and is never really necessary.