SuzukiSavage.com - Backfire

maephisto YaBB Newbies Offline ride ride ride! Posts: 16 Europe Gender:	Backfire 09/06/09 at 23:50:00 Is it normal for the engine to backfire if i stop the engine with the choke pulled out ?
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Routy

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Re: Backfire
Reply #1 - 09/07/09 at 05:46:06

maephisto wrote on 09/06/09 at 23:50:00:

Is it normal for the engine to backfire if i stop the engine with the choke pulled out ?

I don't know why you would stop the engine w/ the choke pulled out. But mine sneezes....snorts when I turn off the key,....w/ the choke pushed in. I guess you could call it a "backfire", but not like it does when decellerating from hi R's.

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maephisto

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Re: Backfire
Reply #2 - 09/07/09 at 06:07:13

Routy wrote on 09/07/09 at 05:46:06:

maephisto wrote on 09/06/09 at 23:50:00:

Is it normal for the engine to backfire if i stop the engine with the choke pulled out ?

I don't know why you would stop the engine w/ the choke pulled out. But mine sneezes....snorts when I turn off the key,....w/ the choke pushed in. I guess you could call it a "backfire", but not like it does when decellerating from hi R's.

it's like a gun shot loud enough to freak out a block...I usualy ride with the choke pulled out...

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Re: Backfire
Reply #3 - 09/07/09 at 07:11:22

maephisto wrote on 09/07/09 at 06:07:13:

it's like a gun shot loud enough to freak out a block...I usualy ride with the choke pulled out...

It's not good to ride with the choke pulled out after the normal warm up period. The extra gas tends to wash the oil off the cylinder walls.
Now of course if your bike is so lean that having the choke out to make it run right is a sure indication of a problem that needs fixin'.
1st, I don't know what year your bike is, or how many miles it's got or if you're capable of turning a wrench... so easiest steps 1st.

Drain the carb, fill it with seafoam, let sit overnight.
Drain, pour into the tank with reasonably fresh gas.
And see how that goes.

Do you have the brass plug pulled over the idle mixture screw?
if you do, 1/8 to a 1/4 turn rich CCW to tame the howitzer blast down to a most comical poof in comparison.

Take your adjustments slow, and you'll learn from each one.

one more question, did you change anything in the exhaust or intake?

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maephisto

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Re: Backfire
Reply #4 - 09/07/09 at 07:26:17

verslagen1 wrote on 09/07/09 at 07:11:22:

maephisto wrote on 09/07/09 at 06:07:13:

it's like a gun shot loud enough to freak out a block...I usualy ride with the choke pulled out...

It's not good to ride with the choke pulled out after the normal warm up period. The extra gas tends to wash the oil off the cylinder walls.
Now of course if your bike is so lean that having the choke out to make it run right is a sure indication of a problem that needs fixin'.
1st, I don't know what year your bike is, or how many miles it's got or if you're capable of turning a wrench... so easiest steps 1st.

Drain the carb, fill it with seafoam, let sit overnight.
Drain, pour into the tank with reasonably fresh gas.
And see how that goes.

Do you have the brass plug pulled over the idle mixture screw?
if you do, 1/8 to a 1/4 turn rich CCW to tame the howitzer blast down to a most comical poof in comparison.

Take your adjustments slow, and you'll learn from each one.

one more question, did you change anything in the exhaust or intake?

the bike is a '98 all standard, no mods. about 31000km...that's about 19000 miles. it runs fine with the choke in, but i liked it better with it pulled out. it sounds and feels better...

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Backfire Reply #5 - 09/07/09 at 07:54:41 maephisto wrote on 09/07/09 at 07:26:17: the bike is a '98 all standard, no mods. about 31000km...that's about 19000 miles. it runs fine with the choke in, but i liked it better with it pulled out. it sounds and feels better... rejet, it'll be better for the bike.
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Rocco Serious Thumper Offline addicted 2 riding TcB Posts: 1049 south florida Gender:	Re: Backfire Reply #6 - 09/07/09 at 10:53:55 i saw backfire and just to do it POP POP POW!!! with the debaffled sporty muffler on now it's more like a roar and tank shot! i'll be rejetting soon though, hopefully it doesn't take away too much of the warning shots !
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FreeSpirit Serious Thumper Offline Joy is my Compass ! Posts: 3823 North Georgia Gender:	Re: Backfire Reply #7 - 09/07/09 at 11:01:43 I kinda like the backfire now that I heard it helps scare the deer out of the road Just thought I'd mention that benefit.
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photojoe FSO Serious Thumper Alliance Member Offline I did warn you to brace yourself Posts: 1379 New Jersey Gender:	Re: Backfire Reply #8 - 09/07/09 at 13:52:21 I felt pretty bad yesterday when the backfire made a young girl standing on the sidewalk jump and scream. Not my intention, but scared the shite out of her. Hey.....it happens.
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twdy YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 36	Re: Backfire Reply #9 - 09/07/09 at 16:04:30 a little off topic... but do you guys have any tips on making her backfire on command? she sometimes does when i drop from 3rd to second on a decel..
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John_D FSO Serious Thumper Offline Ridin' and smilin' Posts: 1658 Vancouver, WA Gender:	Re: Backfire Reply #10 - 09/07/09 at 16:43:54 twdy wrote on 09/07/09 at 16:04:30: a little off topic... but do you guys have any tips on making her backfire on command? she sometimes does when i drop from 3rd to second on a decel.. Absolutely! Just tap the kill switch off, then on again, while under slight acceleration. POW!
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boofer Ex Member	Re: Backfire Reply #11 - 09/07/09 at 19:51:23 twdy, Since I live in the country and all my neighbors hunt and shoot guns like I do, I often announce my homecoming with a backfire. I just pull into my shed and blip the throttle. As rpms rise, just hit kill switch. Rpms dictate sound from .410 guage to 12 ga duck loads. Would not do it in town, but nearest house is 200 yds away. Boofer
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Backfire Reply #12 - 09/07/09 at 19:54:13 I have a harder time flicking the kill off & on & keeping the throttle right, so I drop the heel onto the sidestand a bit, its a lot easier for me & I can do it & no one can see my hand,, just looks like an honest backfire. I did that while 2 cops were on a call & in someones front yard,, Skeert the hayull outta those guys..
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marine5317 Full Member Alliance Member Offline SuzukiSavage.com Rocks! Posts: 181 Lecanto,FL Gender:	Re: Backfire Reply #13 - 09/07/09 at 20:01:17 It might sound good using the kill switch, but remember when you use the kill switch with it still running you are washing the oil film off the cylinder wall with unburned gas. Ride Safe Marine5317
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boofer Ex Member	Re: Backfire Reply #14 - 09/07/09 at 20:24:15 marine5317, Good point. Boofer
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