[jojodolo]

hi irecently put on sarachus when reving right side puts out more exhaust and is alot louder. anybody else have this promlem? also when i dont seem to be losing any performance. thanx jojo

 

[fog]

Mabee one O your Saraschus (sarschu) has a smaller hole?

FOG

 

[Nick D]

Are you judging how much it's putting out by putting your hand over it or what? If you're not losing any performance then I've got to wonder if anything is actually wrong - I'd have to think if only one side was properly firing that it'd run like crap.

If there were a huge difference and it only started after installing the exhaust then the first thing I'd do would be pull off the mufflers and start it up. It won't hurt to run with no mufflers for a bit, and you can see if it's something in the muffler itself that's cutting off the flow. If it's still different from one side to the other (but both sides are indeed firing) then I'd wonder if there's not some crap in the carbs or something.

I'm really just grasping at straws, I suppose. If you decide to pull the mufflers and check that out, post up and let me know what you find.

 

[fog]

Don't pull off the mufflers, That's not the problem. The carb sync is off at Idle, but probably fine at speed. Check your flow when the throttles are slightly open. Most mechanics will set the carb sync with a strain on the cables to simulate actuall riding . and ignor the Idle .

FOG

 

[Nick D]

Don't pull off the mufflers, That's not the problem. The carb sync is off at Idle, but probably fine at speed. Check your flow when the throttles are slightly open. Most mechanics will set the carb sync with a strain on the cables to simulate actuall riding . and ignor the Idle .

FOG

You were just waiting for me to say something so you could say I was wrong, weren't you? So was his sync always off, it's just more pronounced now that the exhaust can breath with the new pipes?

I always set my KZ with the idle cranked to about 2000 rpms. Is it about the same for the EX (and anything else) I suppose?

 

[MrSciTrek]

Maybe it's like the old engine warmers of the 1960's small block Chevy: one side of the V-8 exhaust has a weighted (sprung) flap in it that forces some hot exhaust gas up through some passages in the intake manifold. By heating up the intake quicker the gasoline evaporates better & the engine runs smoother w/ less choke sooner.

Yeah, I know it's not the situation here. Still, what if there were such a system to help our engines warm up faster. Hmmmm.... I wonder....

 

[fog]

Don't pull off the mufflers, That's not the problem. The carb sync is off at Idle, but probably fine at speed. Check your flow when the throttles are slightly open. Most mechanics will set the carb sync with a strain on the cables to simulate actuall riding . and ignor the Idle .

FOG

You were just waiting for me to say something so you could say I was wrong, weren't you? So was his sync always off, it's just more pronounced now that the exhaust can breath with the new pipes?

I always set my KZ with the idle cranked to about 2000 rpms. Is it about the same for the EX (and anything else) I suppose?

Well I try to let others have a Go, as they say in Jolly Old. But My job is to keep the information fairly correct, so....
The sync was always off he never bothered to check before. With the loud pipes he probably noticed a sound diffreential and checked his "Balance" like a Stereo.

 

[jojodolo]

thanx guys for input. just got back from a ride sounds like right side got louder. so i put towel over right side reved 2 4 5 thousand rpm left side sounds about half as loud. do you think a baffel is missing in right muffler? thanks again jojo

 

[MrSciTrek]

I just noticed that a previous owner drilled four to five 1/2+" holes in the back of the mufflers, around the exhaust port. No wonder it sounds like it's hammering & loud.

Any ideas how to plug or seal those holes?

 

[Nick D]

thanx guys for input. just got back from a ride sounds like right side got louder. so i put towel over right side reved 2 4 5 thousand rpm left side sounds about half as loud. do you think a baffel is missing in right muffler? thanks again jojo

I'm going to go with "Listen to FOG" for $100, Jojo. You can try making one of these: http://www.powerchutes.com/manometer.asp (pending FOG's approval, I can't vouch for the usefulness of that style of manometer on the EX, only on my KZ and others like it) and syncing things up. I should probably get on top of that myself.

I just noticed that a previous owner drilled four to five 1/2+" holes in the back of the mufflers, around the exhaust port. No wonder it sounds like it's hammering & loud.

Any ideas how to plug or seal those holes?

If all he did was drill a few holes then you could probably just get some plate welded over the holes to close things up. While you're checking things out make sure you give it a look to see if the p.o. removed the baffle material too. If you take off the main cap and then take out the center ring in the back of the muffler you can just slide the baffle material out. It's just white fiberglass type cloth (or at least it was in mine). If the center ring is still welded in then you're probably golden.

 

[fog]

Hey JoJo,
think GIGO. Gas in Gas out. The extra flow has to come from somwhere, Right?

FOG