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tps adjustment
Topic Started: Mar 29 2012, 05:22 PM (3,591 Views)
Monty
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Charlie Big Banana's
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Written by Monty (some time well in the past)
TPS Adjustment
(Missfire and Under Powered?)
If you think things are not right, before taking your carburettors apart check the Throttle
Position Sensor, I always thought mine was ok as factory set and never gave it a thought,
all you need is a multimeter, basic instructions are here. There are 3 pins in the unit; measure the
resistance in k ohms across the 2 outside pins, a reading of between 3 to 6 k ohms should be
seen. Make a note of what it says, get a calculator and work out what 76% of that figure is.
i.e., outside pin resistance 5.23 k ohms ----76% of =3.97(these are my figures, swap them for your own)
Hold the throttle fully open and measure between the top and middle pin, the reading should be
3.97(your figure), if it is not slacken the 2 screws and move till the figure is the same as what you worked
out.
Your ignition timing should now be correct; you may have to remove the tank to access the pins
better.
From the 4 sets of carbs I've seen, the TPS has always been mounted in the centre of the slots,
which for quickness sake means they will all run but may possibly not be exact.
If it aint sharp I can play with it
My Utube Channel, lots of bike vids here. Subscribe if you likehttp://www.youtube.com/user/choppermark?feature=watch

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Rob 110
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God
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this thread is nothing without pics:D
http://www.4shared.com/photo/98j1g0RW/Cable_Tie.html
http://www.4shared.com/photo/R2NvK_dO/Before.html
http://www.4shared.com/photo/A6RzI8K3/Start.html
http://www.4shared.com/photo/bpPL6_NT/After.html
CLICK HERE TO DONATE TO THE FORUM

DIRTY R30 644 '03 TPS done, gubbins gone, GSXR can, 150 main, 27.5 pilot, needle 2nd position, K&N no lid
FILTHY 404DS '04: 152 main, 70 pilot air jet, 38 pilot, emm needle 4th clip, Quill T3. Sold :(
HUSKY FE501 missile
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whitebuck
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Dazed and confused
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Thanks for the link Rob ;)
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Ride It Like It's Your Ex G/F
CCMMaD Hoodies, Sweats and T shirts http://www.omegaprintandsigns.co.uk/
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ac@39
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Earl
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not really understanding what all this means but have measured mine

start 05.1
75% is 3.825

and i have 3.9


me thinks near enough but dont know what effect the 0.075 equates too ... anyone know??
Edited by ac@39, Apr 19 2013, 04:31 PM.
small willy..huge ego...and no brain cells...

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Monty
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Charlie Big Banana's
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That will be fine,

Although its 76% not 75%
Edited by Monty, Apr 19 2013, 04:36 PM.
If it aint sharp I can play with it
My Utube Channel, lots of bike vids here. Subscribe if you likehttp://www.youtube.com/user/choppermark?feature=watch

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ac@39
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Earl
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Monty
Apr 19 2013, 04:36 PM
That will be fine,

Although its 76% not 75%
with correct figure of 76% its even closer at 3.876


all good in that department so i is happy.. cheers monty
small willy..huge ego...and no brain cells...

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4l0
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Baron
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Nice right up Monty mines was 5.39 ...............76% of related to 4.10. Sensor was set half way,surprised how much i had to move it to get it bang on.
Running 150 mains 27.5 pilot jets, K&N, needles 2nd from bottom, TPS set, valve dingy junked, Irridium plugs, Remus race can.............................need a Kent cam next!!!!
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Winder
Knight
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When you say slacken the screws and adjust until correct what exactly am i adjusting? The depth the screew is in or out? The angle of the TPS unit? Im about to get the multi meter out and do it now

Never mind, worked it out. Didn't notice the pivot when i looked in the dark last night.

Got it spot on now. Still runs like crap with that beowolf exhaust on it. I opened up the can to repack it and it was completely empty!!! It now sound spot on with the baffle in now i have repacked it.
Edited by Winder, Jul 14 2014, 03:11 PM.
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Walshy
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King
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Nice one
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leomn
Baron
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Rob 110
Oct 22 2012, 04:47 PM
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Rob 110
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God
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Flipping image hosting gggrrrr
It is in the 'Files' section if you look at the top and follow it to:
https://www.dropbox.com/sh/jil77ygks7bkn7r/AAD72z4XO8Jo50upFJMe-9k-a/CCM/644?dl=0&preview=TPS+Adjustment.pdf
https://www.dropbox.com/sh/jil77ygks7bkn7r/AAD72z4XO8Jo50upFJMe-9k-a/CCM/644?dl=0&preview=tps+adjustment.doc
CLICK HERE TO DONATE TO THE FORUM

DIRTY R30 644 '03 TPS done, gubbins gone, GSXR can, 150 main, 27.5 pilot, needle 2nd position, K&N no lid
FILTHY 404DS '04: 152 main, 70 pilot air jet, 38 pilot, emm needle 4th clip, Quill T3. Sold :(
HUSKY FE501 missile
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leomn
Baron
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Thanks, very efficient.
Presumably the first reading is not affected by adjustment?
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Monty
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Charlie Big Banana's
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You are correct, the first reading is the whole resistance of the resistor, should be around 5-6k ohms
If it aint sharp I can play with it
My Utube Channel, lots of bike vids here. Subscribe if you likehttp://www.youtube.com/user/choppermark?feature=watch

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leomn
Baron
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good 'ere innit :dirtbike:
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