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Message started by Mattdw on 08/08/11 at 08:00:06

Title: Is it OK to shut down this way to avoid backfire?
Post by Mattdw on 08/08/11 at 08:00:06

I haven't played much with the carb to remove the backfire but I had a '96 with the same backfire as my '07...
Anyway, pull in the clutch, come to a full stop in first gear. Hold the front brake, slowly let out the clutch and let the engine die.
I never get a backfire.
I wouldn't think this is too hard on an engine...
What do you guys think?

Title: Re: Is it OK to shut down this way to avoid backfi
Post by Serowbot on 08/08/11 at 08:45:16

I think it's okay,...
...but, without the backfire, can you ever be sure it's shut down?... ;D...

Title: Re: Is it OK to shut down this way to avoid backfi
Post by Mattdw on 08/08/11 at 08:48:15


4056415C44515C47330 wrote:
I think it's okay,...
...but, without the backfire, can you ever be sure it's shut down?... ;D...


Sometimes I actually like the backfire, just for fun...but, if I've come home at 10 or 11pm...I kinda like to keep it on the down-low, ya know?  ;)

Title: Re: Is it OK to shut down this way to avoid backfi
Post by Gyrobob on 08/08/11 at 09:02:39


565F4C535E5A4F54553B0 wrote:
[quote author=4056415C44515C47330 link=1312815607/0#1 date=1312818316]I think it's okay,...
...but, without the backfire, can you ever be sure it's shut down?... ;D...


Sometimes I actually like the backfire, just for fun...but, if I've come home at 10 or 11pm...I kinda like to keep it on the down-low, ya know?  ;)[/quote]


I've heard of some folks doing something very similar to your technique:  

Come to a stop, leave it in any gear, let out the clutch to where it just starts to drag, then shut off the bike.   This has the motor stopping almost immediately when the key is moved to "off."

The one guy I overheard recommending this technique said he would leave it in second gear when he would do this because on his particular bike, he could get it into neutral much easier than trying to find neutral from first gear.  YMMV

I wonder what would happen if, on a RYCA CS-1 set up with a manual decompression system, you simultaneously decompressed and shut off the ignition?

Title: Re: Is it OK to shut down this way to avoid backfi
Post by thumperclone on 08/08/11 at 09:59:27



I wonder what would happen if, on a RYCA CS-1 set up with a manual decompression system, you simultaneously decompressed and shut off the ignition?
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back flame in the wrong place??

Title: Re: Is it OK to shut down this way to avoid backfi
Post by 12Bravo on 08/08/11 at 10:18:53

You can always pull the choke out halfway then shut the bike off to help reduce backfires. Most of the time just adjusting the air/fuel mixture takes care of the shutdown backfires.

Title: Re: Is it OK to shut down this way to avoid backfi
Post by verslagen1 on 08/08/11 at 11:19:55


49777C616C616C0E0 wrote:
I wonder what would happen if, on a RYCA CS-1 set up with a manual decompression system, you simultaneously decompressed and shut off the ignition?

There's a mod to the pre 95's that does this automatically to prevent spin back of the engine which can wreck the starter gears.

Title: Re: Is it OK to shut down this way to avoid backfi
Post by TheSnakeLady on 08/08/11 at 12:49:55

Wouldn't it do the exact same thing if you kept the clutch in and put the side stand down while in gear? :-?

Title: Re: Is it OK to shut down this way to avoid backfi
Post by drums1 on 08/08/11 at 13:10:00

Personally I like the shutdown backfire. I noticed, after all these years, it shoots a blue flame about 1 foot out the muffler. Kool.

Title: Re: Is it OK to shut down this way to avoid backfi
Post by bill67 on 08/08/11 at 14:29:48


425E534558575D535A57524F360 wrote:
Wouldn't it do the exact same thing if you kept the clutch in and put the side stand down while in gear? :-?

No that would be like just turning it off.

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