SuzukiSavage.com - Too big of an air cleaner?!?!?!

Shrulk

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Too big of an air cleaner?!?!?!
02/27/18 at 22:51:46

Still fighting some full throttle issues while riding. 01 with a shorty exhuast bobber project. My air filter is a big UNI cylinder double foam with a sock and about 8 inches of tube from carb to filter. I've tried different jets, float levels, needle adjustments, full carb clean and rebuild. New plug and fresh oil, raptor petcock. At wide open throttle it's stumbling and sputtering, somewhere I read that I may not have enough vacuum due to the big air filter. Thanks in advance

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Too big of an air cleaner?!?!?! Reply #1 - 02/27/18 at 23:05:35 When you open it up it starts gagging or once you get it up to speed?
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Fast 650 Senior Member Offline SuzukiSavage.com Rocks! Posts: 405 Valrico, FL Gender:	Re: Too big of an air cleaner?!?!?! Reply #2 - 02/27/18 at 23:31:38 How short is your shorty exhaust? CV carbs are quite sensitive to exhaust changes. Too short or too long will cause similar tuning frustrations.
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Shrulk Junior Member Offline SuzukiSavage.com Rocks! Posts: 59	Re: Too big of an air cleaner?!?!?! Reply #3 - 02/27/18 at 23:35:32 It does good in 1st -3rd gear then in 4th and 5th anything over half throttle it's acting up. I can hit about 40 MPH and anything over that is a real struggle. The exhuast is the factory pipe and I removed the muffler and put a GP shorty baffled end on it. So the pipe plus about 8 inches.
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Yoshi Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 874 LongIsland, N.Y. Gender:	Re: Too big of an air cleaner?!?!?! Reply #4 - 02/28/18 at 03:18:21 What other modifications have you done? Are you running with a stock petcock?
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Re: Too big of an air cleaner?!?!?!
Reply #5 - 02/28/18 at 04:09:05

I don't believe you can have a filter that is too big.....the vacuum that opens the slide comes from the engine side...not from the air filter side. If the vacuum doesn't build up....the slide drops until it does.

What kind of shorty exhaust? Is the header normal length? Does the muffler just flow straight through?

What jets are you running?

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Shrulk

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Re: Too big of an air cleaner?!?!?!
Reply #6 - 02/28/18 at 08:21:20

I have the raptor petcock, stock header length with a supposed to be baffled shorty turn down. I've tried 147.5 150 152.5 155 157.5 and 160 main jets and a 55 pilot. Tried the needle with the white spacer and with the mod of 3 washers 2 washer 1 washer and no washers from the ryca jet kit. I'll look more into the muffler/ shorty piece and see if there's actually baffles but seems more like a 6 inch glass pack.

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Shrulk Junior Member Offline SuzukiSavage.com Rocks! Posts: 59	Re: Too big of an air cleaner?!?!?! Reply #7 - 02/28/18 at 08:22:46 If I ha some one close to my area I'd buy beer and pizza if they could look at it lol. Not opposed to trying a different muffler either just don't want to buy mufflers and have no change.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Too big of an air cleaner?!?!?! Reply #8 - 02/28/18 at 08:42:36 What happens in third at 45 mph?
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Dave YaBB Moderator ModSquad Offline SuzukiSavage.com Rocks! Posts: 18101 Camp Springs, Kentucky Gender:	Re: Too big of an air cleaner?!?!?! Reply #9 - 02/28/18 at 09:25:29 Shrulk wrote on 02/28/18 at 08:22:46: If I had some one close to my area I'd buy beer and pizza if they could look at it lol. I suppose we would to know what "area" you live in.....to know if we are close. If it is "Area 51"......I won' be able to come over.
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Shrulk Junior Member Offline SuzukiSavage.com Rocks! Posts: 59	Re: Too big of an air cleaner?!?!?! Reply #10 - 02/28/18 at 09:38:16 I'm in Sandy oregon sorry. Little ways away from area 61. I'm usually in 4th at 45 I've never been able to get it on open enough road to run gears topped out. I'll take it out as soon as the rain stops and see about 45 in 3rd.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Too big of an air cleaner?!?!?! Reply #11 - 02/28/18 at 11:04:08 I think the smart guys would benefit from that. The complaint sounds rpm related so let's test at rpm that doesn't work out in fourth in a lower gear and see.
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Re: Too big of an air cleaner?!?!?!
Reply #12 - 02/28/18 at 12:17:04

Shrulk wrote on 02/28/18 at 09:38:16:

I'm in Sandy oregon sorry. Little ways away from area 61. I'm usually in 4th at 45 I've never been able to get it on open enough road to run gears topped out. I'll take it out as soon as the rain stops and see about 45 in 3rd.

Savage Greg of "Savage Companion" fame used to be a member is just north of you. You might look him up. Check the tech section for Savage Companion and hit the email link.

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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: Too big of an air cleaner?!?!?! Reply #13 - 02/28/18 at 13:53:46 You might just brake down and put a real muffler on, your basically running a straight pipe that makes the header pipe too long. longer header pipes favor low rpm ,that's your problem .your little turn out muffler may be the look you like ,but it won't work no matter how you jet the carb.
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Shrulk Junior Member Offline SuzukiSavage.com Rocks! Posts: 59	Re: Too big of an air cleaner?!?!?! Reply #14 - 02/28/18 at 14:46:48 I'll look him up thx. If I get the chance I have a couple things to try now and putting a modified stock muffler on is one of them, since it's still in my garage. Thx again to all. Really want to ride this bobber project. Anyone suggest a great sound inexpensive muffler????
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