[sanfelice]

imported post

In other words, the laziest way one can think of doing this. Are there any disadvantages (or cautions) for doing this?

My 79 is running a bit rough and I will be changing the plugs today with copper NGKs so I thought I would give it a dose of carb cleaner while I am trying for a smoother idle.

Thanks for your suggestions.

 

[manatee]

imported post

I used Randaak's "In Situ" method of cleaning my carbs last year after I bought my bike using the Yamaha carb cleaner. It made a world of differencein how the bike ran. I left the mixture in the carbs overnight. You should have seen the ugly gunk that came out of the bowl drains. I did it twice to be sure. The second cleaning proved that the first had done the job.

http://www.randakks.com/TechTips.htm#1

If you're asking about actually just burning the carb cleaner with gas in the fuel tank, I'd think twice about it.

 

[sanfelice]

imported post

thanks, manatee, but how do I drain the bowls on my carbs after I put in the carb cleaner...?

 

[manatee]

imported post

There's a small screw at the base of each carb bowl (at least on my78). You loosen it a turn or two and it opens up a small drain passage. I cut the bottom of a plastic 20 oz water bottle off, about an inch high, to slide under the bowl and catch the gas and gunk. Otherwise it will just leak all over the engine under the carbs.