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Tps Adjustment


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#1 Pj180

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Posted 22 July 2020 - 10:50 pm

Hi All,
Just got an '96 850.
Previous owner said slow speed running wasn't that great along with weird noise from drive train when running.
That noise was down to a really worn front sprocket and chain so every so often it would catch rather than mesh.
I've changed both sprockets and chain so that should be good.
So on to the slow running - I had a bunch that the tps might not be correct, so ran the test according to the manual and its showing 1 on the rev counter so need to adjust to get it to 4.
BUT how do you get at the fastners with the engine in the frame?? I thought I might be able to take the carbs off and then adjust but that looks just as bad as gettimg to the TPS itself !!
So thought I'd ask the people that know 😁👍
Cheers

#2 wicklamulla

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Posted 23 July 2020 - 07:04 am

Hi All,
Just got an '96 850.
Previous owner said slow speed running wasn't that great along with weird noise from drive train when running.
That noise was down to a really worn front sprocket and chain so every so often it would catch rather than mesh.
I've changed both sprockets and chain so that should be good.
So on to the slow running - I had a bunch that the tps might not be correct, so ran the test according to the manual and its showing 1 on the rev counter so need to adjust to get it to 4.
BUT how do you get at the fastners with the engine in the frame?? I thought I might be able to take the carbs off and then adjust but that looks just as bad as gettimg to the TPS itself !!
So thought I'd ask the people that know
Cheers

 fiddly pig of a job and i bet you struggle to attain 4k,  more like 4300rpm may be the final outcome.  good luck with it. 


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#3 Studley Ramrod

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Posted 23 July 2020 - 08:45 am

Have you tried using a torx bit, sure someone on here used one in the past.


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#4 drewpy

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Posted 23 July 2020 - 12:34 pm

you need to take the carbs off, had to do it twice and yes, its a pain.

Once done though should be sorted for  a while as they don't usually go out

 

adjust it with the carbs off and tighten down


Edited by drewpy, 23 July 2020 - 12:34 pm.

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#5 Pj180

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Posted 23 July 2020 - 02:27 pm

Cheers - It'll have to wait until afterweekend festivities that have been planned




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