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Message started by Joe C on 08/01/10 at 18:40:02

Title: POPPING AFTER DRAG PIPE INSTALL
Post by Joe C on 08/01/10 at 18:40:02

I just put some blue collar bobber pipes on my girlfriends and now the bike seems to pop a bit. Is there a way to fix this? Do I need to rejet or can I somehow adjust the mixture screws? What about putting a baffle in? Any suggestions on what baffles will work best?
Thanks

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by justin_o_guy2 on 08/01/10 at 18:45:10

475157405D5B5A0C5E5B51340 wrote:

You could go back to stock,, orrejet, or baffle the BCB pipe, BUt why BUY the thing just to choke it back to the flow rate of stock?

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by Joe C on 08/01/10 at 18:48:38

Well, this is my girlfriends bike :) and she liked the look of the BCB pipes ;D ;D

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by justin_o_guy2 on 08/01/10 at 19:07:49

You can rejet in oless time than building a baffle into the new pipe AND, itll run better.

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by Joe C on 08/01/10 at 19:10:02

I don't know how to rejet, or what size jets to use. I'm an idiot with carbs

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by verslagen1 on 08/01/10 at 19:15:08

514741564B4D4C1A484D47220 wrote:

I just put some blue collar bobber pipes on my girlfriends and now the bike seems to pop a bit.

When does it pop?
How does it pop?
Do you like pop?

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by Joe C on 08/01/10 at 19:16:33

Pops when I let off the gas. Pops out of the back of the exhaust. She does not like pop.

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by RTC on 08/01/10 at 19:54:21

the BCB drag pipe already has a baffle in it. it is not just a piece of pipe. a lot of guys stock pipes backfire or "pop"

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by verslagen1 on 08/01/10 at 22:07:51

6E787E69747273257772781D0 wrote:

Pops when I let off the gas. Pops out of the back of the exhaust. She does not like pop.

Is it a shift pop or engine brake pop?

Is it a pop, Pow or KERPOW?

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by Joe C on 08/01/10 at 22:09:08

I believe it's an engine brake pop.

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by verslagen1 on 08/01/10 at 22:15:47

32242235282E2F792B2E24410 wrote:

I believe it's an engine brake pop.

if it's a shift pop, usually that means you got an air leak either the headers loose or muffler clamp.
now engine brake jacob brake kinda with popping, not much you can do about that. you might try to set the idle higher, say 14 or 1500 rpm.

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by Hashbrown on 08/01/10 at 23:07:47

will need to retune it regardless if u rejet or not. also its a fact of life with those bikes that it will always gurgle or poot when you start messing with rich/lean. if your more then three turns out with the mixture screw then you will need to rejet. rejetting is easy even a caveman can do it ;D this thread has great pix and you can figure out where they go.

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1191899985

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by LANCER on 08/02/10 at 03:03:41

That is a very good thread, lots of good info

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by Joe C on 08/02/10 at 11:34:29

How can i tell if my mixture screw is more then 3 turns out? Should I screw it all the way in and see how far it goes? I guess since it's backfiring it's running too lean. What way to I need to turn to enrighten the carb? Sorry for all the stupid questions I'm just a bit nervous working with carbs since they are so precise.

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by verslagen1 on 08/02/10 at 11:56:00

Turn the screw cw be carefull not seat it hard as it might get stuck.
Count as you go in so you can back it out the same amount.

Title: Re: POPPING AFTER DRAG PIPE INSTALL
Post by Hashbrown on 08/02/10 at 12:40:11

search "carb tuning" and you will find step by step instructions. remember to first warm the bike up then when you are turning the screw out "counterclockwise" that you do it in 1/4 turn increments and give it half a minute between each turn. basically you are listening to when the engine falters on either end (turning in, and turning out) those are your limits and then you turn out based on the average between the two limits. the thread expains it perfectly