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Pannier Down
Joined: 09 Sep 2008
Posts: 9
Location: Oxford UK
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 Posted: Sat Apr 02, 2011 3:18 pm Post subject: K1100 Flat Spot and Induction Roar |
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Hi All,
I am a member of a few forums. I don't post often, true to say mainly when I need help.
My K1100LTIC seems to have a pronounced flat spot between 3k and 4k revs.This is accompanied by a loud induction roar, I have had previous Ks which sound nowhere near as loud.
It starts and ticks over fine, runs great up to 3k, and pulls like an express train from 4k on. I have changed the air filter and checked that the air box is O.K. and had the throttle bodies checked for balance by a local independant who also plugged it into a diagnostic which showed no problems.
Fuel consumtion seems normal, about 18 litres per 200 miles.
My 40 mile commute has me spending most of the journey between 3k and 4k, to the point where this is getting irritating. Any ideas???
Mike
K1100ltic Based Oxfordshire England
_________________
Sold K100RT and bought Triumph,
Sold Triumph to buy 95 Graphite K1100LT
Sold K1100LT and bought Varadero,
Sold Varadero and bought 99 White K1100LT
Sold K1100LT and bought ZZR1100,
Sold ZZR and bought 93 Red K1100LT.
When will I learn??? |
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Shoganai
Biscuit Fluffer
Joined: 27 Apr 2005
Posts: 2234
Location: Culpeper,VA
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| Posted: Tue Apr 05, 2011 9:48 am Post subject: |
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When you say 'flat spot' what does that mean?
Change in power?
Change in Revs?
Decreased power?
Decreased acceleration?
_________________
1993 K1100RS aka The Shop Whore
1994 K1100RS aka Blue Streak
The long road is a rainbow and the pot of gold lies there.
So slip the chain and I'm off again,
You'll find me everywhere. I'm a Rover. - JT
Nana korobi ya oki |
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roadscum
Big Brick Rider
Joined: 10 May 2010
Posts: 73
Location: North Port, Florida
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| Posted: Tue Apr 05, 2011 11:48 am Post subject: |
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Perhaps the T B's are out of balance and need o be synch'd.
Regards, Paul
_________________
"I don't believe in the after life, although I am bringing a change of underwear." - Woody Allen
'94 K11RS
'08 F800S
'08 MG 1200 Sport
'09 Triumph Scrambler |
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Pannier Down
Joined: 09 Sep 2008
Posts: 9
Location: Oxford UK
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| Posted: Tue Apr 05, 2011 4:59 pm Post subject: |
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| Shoganai wrote: | When you say 'flat spot' what does that mean?
Change in power?
Change in Revs?
Decreased power?
Decreased acceleration? |
Hi Shoganai,
At about 3k, the induction roar, or a kind of resonating sound starts and the bike feels to be down on power. I would not call it significant, but definately a drop off which slows accelaration.
At 4k, it really takes off. Other Ks I have had have all been smooth through the rev range.
Mike
_________________
Sold K100RT and bought Triumph,
Sold Triumph to buy 95 Graphite K1100LT
Sold K1100LT and bought Varadero,
Sold Varadero and bought 99 White K1100LT
Sold K1100LT and bought ZZR1100,
Sold ZZR and bought 93 Red K1100LT.
When will I learn??? |
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oldshoe
Joined: 24 Sep 2007
Posts: 8
Location: Texas
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| Posted: Wed Apr 06, 2011 2:08 pm Post subject: |
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| Try checking Tpi for smooth movement throughout entire range.my 2 cents. |
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