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Slight loss of power mid gear. Recent tire change (Read 129 times)

CodyT

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Posts: 33

Slight loss of power mid gear. Recent tire change
05/14/16 at 17:23:11

Okay, so we noticed some loss of power this past week usually only noticeable in middle of a gear or when keeping at a certain speed. Its almost like im letting of the gas a little then it comes back a second later.

We did upgrade the tire to a 150/90 and the old one was a 140/80 but i think it seemed to run fine for a few days after that. Also during the tire change I noticed oil on the air filter as well as a smell of gas and have since switched to the raptor 660 petcock. The loss of power was noticed before the petcock change but i have yet to receive a new air box filter and have the oily one on still. I did soak and clean the filter and left it out to dry until i get a new replacement. Just looking for a little advice and wondered if anyone else has noticed a similar problem.

Thanks!

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CodyT YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 33	Re: Slight loss of power mid gear. Recent tire cha Reply #1 - 05/14/16 at 17:25:54 i was also told the tires were balanced but i am not certain of this. And i put the rear tire on myself but feel certain i did it correctly. Also i feel that the oil in the airbox has been like that since i purchased it last summer but i may be wrong.
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DesertRat Serious Thumper Offline I love rat bikes! Posts: 1569 Arizona	Re: Slight loss of power mid gear. Recent tire cha Reply #2 - 05/14/16 at 18:12:38 What would I do? start by changing the oil and filter for new Rotella/ZDDP combo. Could be a slipping clutch ... clean the carb next ... could be a stuck float or clogged/restricted jet ... and that's where I would start ... but that's me ... YMMV
Back to top	-The silence of indifference makes cowards of men. - http://www.pipeburn.com/home/category/rat IP Logged

Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: Slight loss of power mid gear. Recent tire cha Reply #3 - 05/14/16 at 20:20:21 Have you rejetted the carb? Are you experiencing a "lean surge"?
Back to top	There's no problem that a full tank of gas and a sunny day can't fix! 2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor IP Logged

Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28418 Tucson Az Gender:	Re: Slight loss of power mid gear. Recent tire cha Reply #4 - 05/15/16 at 06:32:28 Double check that your belt isn't too tight,... also that the rear brake isn't...
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Slight loss of power mid gear. Recent tire cha Reply #5 - 05/15/16 at 07:47:44 I've been trying to figure out a reasonable response. Good job, Rowboat. Hafta slip a star up on the board..
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CodyT YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 33	Re: Slight loss of power mid gear. Recent tire cha Reply #6 - 05/15/16 at 09:07:19 actually i though my belt seemed a little tight, i could turn it as far as before the change
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CodyT YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 33	Re: Slight loss of power mid gear. Recent tire cha Reply #7 - 05/15/16 at 09:13:41 the belt does indeed seem tight. What is the best was to go about loosening it? Do i need to take the rear tire off again? thanks for all the input
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28418 Tucson Az Gender:	Re: Slight loss of power mid gear. Recent tire cha Reply #8 - 05/15/16 at 09:31:56 Loosen the axle nut,... back the adjusters off a bit,.. wiggle the wheel to let it settle... then check for belt slack. When it feels good and you can twist the belt with your fingers about 90',... retighten the axle... make sure the wheel is running even side to side...
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CodyT YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 33	Re: Slight loss of power mid gear. Recent tire cha Reply #9 - 05/15/16 at 10:25:52 FIXED!!! thanks a lot man, you saved the day!!!
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Slight loss of power mid gear. Recent tire cha Reply #10 - 05/15/16 at 10:40:38 The curtains part, the Muppet steps out to center stage And bows, as the crowd goes wild,,,,
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DesertRat Serious Thumper Offline I love rat bikes! Posts: 1569 Arizona	Re: Slight loss of power mid gear. Recent tire cha Reply #11 - 05/15/16 at 11:52:05 Quote: ...only noticeable in middle of a gear or when keeping at a certain speed. Its almost like im letting of the gas a little then it comes back a second later... an overtightened rear wheel caused a power loss when under throttle? WTF???
Back to top	-The silence of indifference makes cowards of men. - http://www.pipeburn.com/home/category/rat IP Logged

Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28418 Tucson Az Gender:	Re: Slight loss of power mid gear. Recent tire cha Reply #12 - 05/15/16 at 13:39:09 DesertRat wrote on 05/15/16 at 11:52:05: an overtightened rear wheel caused a power loss when under throttle? WTF??? The belt, RAt... not the wheel...
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CodyT YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 33	Re: Slight loss of power mid gear. Recent tire cha Reply #13 - 05/15/16 at 15:27:11 i just know it fixed the issue. I feel very confused with the tensioners though. can they be tightened unevenly? If so what does that do?
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Garry Junior Member Offline SuzukiSavage.com Rocks! Posts: 62	Re: Slight loss of power mid gear. Recent tire cha Reply #14 - 05/15/16 at 16:08:31 I noticed these exact same symptoms with my S40 yesterday. Pull in the clutch to change gears and the bike pulled back slightly. Also difficulty in keeping steady progress at town speeds on low throttle! Belt had just been adjusted using the factory tool! Thanks for the info guys.
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