Date: 18-04-24  Time: 09:30 am

Author Topic: Sticky rev counter  (Read 1056 times)

matt7chunk

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Sticky rev counter
« on: 16 May 2020, 09:35:16 am »
Hey guys ,


So I've been reading all the tps stuff and I'm pretty sure this isn't a speed sensor fault ,


The rev counter kinda gets hung up at 5000 then kinda wiggles it's way up , then gets stuck there again , never drops to zero like some of fault code stuff .


What can this be ?


I've checked the tps and the Speedo if in effected , working as usual


Cheers guys

Gnasher

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Re: Sticky rev counter
« Reply #1 on: 16 May 2020, 10:28:07 am »
Later

matt7chunk

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Re: Sticky rev counter
« Reply #2 on: 16 May 2020, 12:28:44 pm »
Just balanced the carbs and pulled the tps out and cleaned the crud from edges , seems to be working now


Gonna go for test ride now and I'll update when back

Gnasher

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Re: Sticky rev counter
« Reply #3 on: 16 May 2020, 12:58:05 pm »
Just balanced the carbs and pulled the tps out and cleaned the crud from edges , seems to be working now


Gonna go for test ride now and I'll update when back


 8)  dodgy connection more likely   :)
Later

matt7chunk

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Re: Sticky rev counter
« Reply #4 on: 16 May 2020, 02:17:19 pm »
Well it worked good for about 5mins then got stuck at 5k again , if I run the revs right up to 11 or 12 it will kick back in again then when I drop the revs again it gets stuck , hopefully don't need a new tps


I'll check the connection and wiring for breaks :/


Doesn't effect the running at all mind

darrsi

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Re: Sticky rev counter
« Reply #5 on: 17 May 2020, 07:58:50 am »
Well it worked good for about 5mins then got stuck at 5k again , if I run the revs right up to 11 or 12 it will kick back in again then when I drop the revs again it gets stuck , hopefully don't need a new tps


I'll check the connection and wiring for breaks :/


Doesn't effect the running at all mind


If you eventually decide it is the TPS playing up, then please do not buy a Used one. You will only end up needing another one sooner rather than later so it's not worth the trouble. I bought two used ones before realising this, and then eventually bought a brand new one which i should have done straight away, after they both broke down as well. A used one could be up to 22 years old now with unknown mileage on it so it's really not worth it from a monetary perspective.


https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=throttle+position+sensor+fzs+600&_sacat=0


 
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darrsi

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Re: Sticky rev counter
« Reply #6 on: 17 May 2020, 08:12:22 am »
Well it worked good for about 5mins then got stuck at 5k again , if I run the revs right up to 11 or 12 it will kick back in again then when I drop the revs again it gets stuck , hopefully don't need a new tps


I'll check the connection and wiring for breaks :/


Doesn't effect the running at all mind


Apart from the rev counter needle playing up the main signs of a dodgy TPS can be subtle. They tend to gradually break down, rather than just stop working. One of mine could be adjusted to the 5000rpm position but if i checked it a few days later it would be sitting at the 10,000rpm position for example.
But me checking it would have been due to some sort of running issue. I know exactly when my bike misses a beat and the main symptom is rough running under 3000rpm, normally when riding slowly or in traffic. You need to use the clutch a lot more and find yourself giving the bike more throttle to control things. I've done it myself so bear in mind you may think things are okay, until you swap it out then you suddenly notice the difference when it all runs smoothly. Not so noticeable at higher revs, but again, it's just not quite right.
This all depends at what stage it may be breaking down as well, so it can creep up on you gradually. If it's totally fooked the bike will run horribly.

« Last Edit: 17 May 2020, 08:31:55 am by darrsi »
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Jules-C

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Re: Sticky rev counter
« Reply #7 on: 17 May 2020, 07:44:36 pm »
Check the glass hasn't had a knock pushing it in so the needle is catching on the back of the glass stopping it moving smoothly