Whine

Son-of-a-gun!

Looks like I should be changing my carb-to-manifold gaskets!

Thanks, Angus!

somewhere in this thread was a comment on the Dells making a whistle or a chirp like sound.

Totally normal for the Dells.

I have the same sound with my motor, but it doesn't bother me too much. I have never heard of the gaskets CB sells, but it sounds neat.

Yeah, it's kind-of a constant chirp that comes on about 1/3 throttle and gets a bit louder as you get past 2/3 throttle, then gets less as you either give it more gas or let off - similar to a wierd type of vacuum leak. All that while sitting there idling smoothly and reading a constant 14.7 on my air/fuel mix gauge - go figure.

I've actually gotten used to it such that, if I fixed (eliminated) it, I would probably miss it.........Maybe I need "Shorty" to look at it?

I think I made the comment about the high pitch sound, more of a scream to my ears. The no-whistle gaskets I got from Bugformance in Sacramento solved the problem, now I enjoy the growl of the exhaust note.

What type of Carburation do you have? I have a whine and I have dellorto's. They told me its common with these carbs.

Well, I have Dellorto 40mm's. Maybe you're right.

I'm pretty sure there is no major vacuum leak, since it idles dead stable for many minutes on end and the air/fuel mix sits right on 14.7 at idle (talk about luck!)

I just suspect that there is something in the carb body design itself that whistles (it's kind-of a pulsating whistle and seems to come from both sides) that may have drivin someone nuts enough in the past to trace it down and make a different carb base gasket remedy. I bought a new pair of "regular" base gaskets from CB recently, but have been too busy/lazy to try putting them in.

My noise isn't getting any louder, and I've grown used to it........besides, the exhaust note is much louder than the whistle!

According to the parts guy at Bow Wow Victoria,said their is a small hole below the butterflys that is the cause of the whistle,as he says you can either plug it with silicon or buy the anti whistle gaskets.I went with the gaskets,didn't like the thought of sucking a plug of silicon into the motor.

I had a set of Dellorto 40mm's on a 1914cc engine a few years back, they also had the whistle.
Installed a set of the thick gaskets, adjusted the carb linkage by extending the rods to allow for the increase in the gasket thickness and the problem was solved.

Yeah, but if I do that I lose my "Fear Advantage" over the Japanese Buzzy-Exhaust set 'cause they wouldn't hear the whistle coming up on them REALLY FAST, just before I blast past them, down in Fall River on the "Cruisin Strip".............Definitely cooler with the whistle.

gn
"One of the Speedstah Guys from Rhode Island"

Besides......my low-growl Berg exhaust is also way cooler than their Buzzy Exhaust, "Buzzy-Rap-Rap" note.