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Bad Gas mileage (Read 803 times)

bill67 Serious Thumper Offline old tired Posts: 8517 genoa city wisconsin Gender:	Re: Bad Gas mileage Reply #45 - 06/18/11 at 10:14:24 It says on the can how much to a quart,No you don't have to change the oil the filter will pickup anything if their is any.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28644 Tucson Az Gender:	Re: Bad Gas mileage Reply #46 - 06/18/11 at 10:22:50 I put a little Marvels Mystery Oil in mine once in a while... about a teaspoon, every other oil change or so...and another in the tank... For absolutely no logical reason whatsoever... ... The mechanical equivalent of giving my bike a cookie for good behavior... ...
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rl153 Serious Thumper Offline S40 Just right! Posts: 906 Bloomfield,CT Gender:	Re: Bad Gas mileage Reply #47 - 06/18/11 at 10:25:49 I'm definately going to do the seafoam in the oil..Thanks
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Bad Gas mileage Reply #48 - 06/18/11 at 10:27:46 I dump a bit O diesel in the gas engines once in a while.
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bill67 Serious Thumper Offline old tired Posts: 8517 genoa city wisconsin Gender:	Re: Bad Gas mileage Reply #49 - 06/18/11 at 10:44:10 I dump a bit o gas in the diesel engines in the winter time.
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SuzukiSavage.com
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Re: Bad Gas mileage
Reply #50 - 06/20/11 at 19:38:06

rl153 wrote on 06/16/11 at 11:56:28:

I ran out and bought a new air filter and installed it . $40, ouch. The old filter was dark grey and fuzzy. This might do it. The parts guy at the mc shop said you usually change them at 8k , mine has 4k mi. I don't know if this is normal or not . It did smell a little gassy in the air box ,but no wetness or oil.He also told me to run high test 93 ,I been running 89 .I'm going to change the plug soon,and add seafoam. Well thanks again ,we'll see what happens.

What happened after you changed the air filter? Make any difference?

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rl153 Serious Thumper Offline S40 Just right! Posts: 906 Bloomfield,CT Gender:	Re: Bad Gas mileage Reply #51 - 06/21/11 at 08:22:34 I haven't driven far enough to tell if the air filter helped . My tank is still almost full . And this week were supposed to get rain . Oh well. Thanks for asking.
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spacepirates

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Re: Bad Gas mileage
Reply #52 - 06/21/11 at 10:41:37

I've had bad gas mileage for a little over a year now. I checked compression, which may be off due to a crappy tester, but long story short BurnPGH tore down my engine, discovered a bad head gasket, and replaced it. Unfortunately I've been trying to get the jetting right before I actually decide if that helped with my issue.

I just bought a replacement pod filter (ebay special for $10 or so), new plug, and will run seafoam for a while once I feel a bit better about the jetting.

It is raining here all week (blasted "scattered" t-storms. never know when or if they'll get ya) and progress is always slow....

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spacepirates

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Igni Ferroque

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Re: Bad Gas mileage
Reply #53 - 07/11/11 at 14:20:10

Just an update:
Replaced my head gasket and rejetted (though i'm not sure i'm 100% yet). after that and adjusting the belt tension, I've gone up from 30-35 mpg to 47ish. I filled up after 50 miles, 35 of which were on the super slab doing 75mph.

still not quite there, but a huge improvement none the less. I'm going to adjust my valves and keep on trying to get the jetting right.

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Only a biker knows why a dog sticks his head out of a car window.

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Boofer

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Re: Bad Gas mileage
Reply #54 - 07/12/11 at 07:00:28

rl153 wrote on 06/17/11 at 10:34:27:

Thanks for the tip boofer ,where do you get the hi flo filtro ? Also if you think your have carbon buildup in you cylinder,what is the best thing to do about it?

Sorry I just read your question. My dealer got it for me. HMFA3608 fits perfect in original air box. I have to say I have three great mc shops/dealers in 20 miles. I haven't done this for the filter, but if you just Google that number it should come up. ihth

2001 Black, Spitfire windshield, Headlight upgrade, Sissy rack, Tool bag, Fork bag, Harley muffler, Memory foam seat, Crash bars. Hwy pegs, Raptor.

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