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Simple Question from newbie (Read 167 times)

DrunkenDwarf

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Morning Zombie

Posts: 325
Seattle, WA
Gender: male

Simple Question from newbie
03/11/09 at 11:29:59

I got my savage at the end of last years riding season. Put a few hundred on it. So far I've been really enjoying it. Can't wait for the snow to melt so I can get out again.

Now, my question. When riding at a stead speed, usually around 45 mph, I could feel the motorcycle "surge". The speed appeared constant, but I could feel a variation.

Is this due to the Savage being a single cylinder or is it something that the white spacer mod could reduce or something in my head?

Thanks for the advice.

-Dwarf

Pearl White 2007 S40; Dyna exhaust; Current jets: 52.5 w/ bleed (2 turns out) / 1.5mm (0.06") spacer / 150; raptor petcock

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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: Simple Question from newbie Reply #1 - 03/11/09 at 11:34:41 White spacer mod, but check in this order, pilot adjustment, main, then white spacer. each one affects the other.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28644 Tucson Az Gender:	Re: Simple Question from newbie Reply #2 - 03/11/09 at 11:46:41 and check your vac line.... you could have a small air leak...
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DrunkenDwarf

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Morning Zombie

Posts: 325
Seattle, WA
Gender: male

Re: Simple Question from newbie
Reply #3 - 03/11/09 at 12:37:49

verslagen1 wrote on 03/11/09 at 11:34:41:

White spacer mod, but check in this order, pilot adjustment, main, then white spacer. each one affects the other.

Serowbot wrote on 03/11/09 at 11:46:41:

and check your vac line.... you could have a small air leak...

I'm new to motorcycle maintenance, could you be more specific what you mean by "check"?

The previous owner put different jets in (0.055 pilot and 0.155 main) and a HD Dyna exhaust on, if that makes a difference.

Thanks.

-Dwarf

Pearl White 2007 S40; Dyna exhaust; Current jets: 52.5 w/ bleed (2 turns out) / 1.5mm (0.06") spacer / 150; raptor petcock

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Serowbot

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OK.... so what's the
speed of dark?

Posts: 28644
Tucson Az
Gender: male

Re: Simple Question from newbie
Reply #4 - 03/11/09 at 13:06:00

The vacuum line, runs from the back of the petcock (fuel tank shutoff) to the right side of the carb, (usually a chrome spring covered line)....
first check that there is no gas in that line, (should be absolutely none).... then inspect it for any cracks where air might leak out and clamp it securely at both ends... the ends are where cracks are most likely to appear.

Ludicrous Speed !... ... Huh

...

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T Mack 1 - FSO

Serious Thumper
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sold 2001 LS650 for
a 1986 XLH1100

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Emmaus,Pa
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Re: Simple Question from newbie
Reply #5 - 03/11/09 at 13:08:50

Constant speed is not an easy thing to do. You are always moving the throttle a tiny, tiny bit.

When I was adjusting my bike, trying to get the correct jet combination, I did an experiment and put the white spacer back in(which causes a lean mid range). I noticed that there was something I would best describe as a "stumble" in the high 30's to mid 40's speed range (mph). I did not really see it on the speedo, but felt it for sure.

So I guess you are not crazy....... well ... on second thought ..... my wife & son call me crazy.... so maybe we both are.... Huh

Engineers design things, Technicians make them work.
---
30% of being mechanical is confidence/30% is knowing to go slow when needed/30% is looking repeatedly at what you have/10% is dumb luck Wink

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Jay Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1445 Fort Worth, Texas Gender:	Re: Simple Question from newbie Reply #6 - 03/12/09 at 03:04:54 Next time you're cruising at 35-45 mph, try pulling your choke out to first position. If the hesitate/surge stops, you're a little lean in the mid.
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DrunkenDwarf Senior Member Offline Morning Zombie Posts: 325 Seattle, WA Gender:	Re: Simple Question from newbie Reply #7 - 03/12/09 at 08:31:01 Jay wrote on 03/12/09 at 03:04:54: Next time you're cruising at 35-45 mph, try pulling your choke out to first position. If the hesitate/surge stops, you're a little lean in the mid. Thanks for the advice, I'll definitely try that. Unfortunately, it snowed again. Back to dreaming. -Dwarf
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Savage Eddie Full Member Offline Custom Bob's ROCK! Posts: 204 40 miles west of Chicago Gender:	Re: Simple Question from newbie Reply #8 - 03/13/09 at 18:37:58 Next time it snows here in Chicago Dwarf, ill tell it to head north!
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