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Main Area => General GS500 Discussion => Topic started by: bumpy on August 29, 2017, 03:16:52 PM

Title: Temp sensors ???
Post by: bumpy on August 29, 2017, 03:16:52 PM
New to the world of GS500's. Do they have any temp sensors ? Being an air cooled engine i wouldn't think so, but would like to double check.

A guy at a bike repair said, it could be the temp sensor making my bike rev at 6k. I thought valve clearance, air leak, or something with possible linkages on the carb.
Title: Re: Temp sensors ???
Post by: The Buddha on August 29, 2017, 07:13:14 PM
No temp sensors.
You need a new shop.
6k revving at idle is cable hanging, choke hanging, idle screw being too far open, vacuum leak and if all that fails - lean as fruck jetting the EPA of the lovely USA blessed us with.
Cool.
Buddha.
Title: Re: Temp sensors ???
Post by: bumpy on August 29, 2017, 07:45:30 PM
Quote from: The Buddha on August 29, 2017, 07:13:14 PM
No temp sensors.
You need a new shop.
6k revving at idle is cable hanging, choke hanging, idle screw being too far open, vacuum leak and if all that fails - lean as fruck jetting the EPA of the lovely USA blessed us with.
Cool.
Buddha.

Would valve clearance also have anything to do with it ? I have only just bought the bike, so don't know when it was done last.
Title: Re: Temp sensors ???
Post by: qcbaker on August 30, 2017, 05:18:57 AM
Quote from: bumpy on August 29, 2017, 07:45:30 PM
Would valve clearance also have anything to do with it ? I have only just bought the bike, so don't know when it was done last.

The only way valves would come in to play is if the PO set the idle crazy high to compensate for very low/no compression (due to bent/burnt valves). But, I seriously doubt that's the issue. Like Buddha said, check the Idle Adjustment Screw (http://wiki.gstwins.com/index.php?n=Maintenance.AdjustIdle). Then, you still have issues when that is adjusted properly, check your throttle cable free play, if that's fine, make sure the cable itself isn't sticking, etc. Do the same with the choke cable. Then, if you still have issues, check for vacuum leaks.
Title: Re: Temp sensors ???
Post by: The Buddha on August 30, 2017, 06:44:41 AM
Quote from: bumpy on August 29, 2017, 07:45:30 PM
Quote from: The Buddha on August 29, 2017, 07:13:14 PM
No temp sensors.
You need a new shop.
6k revving at idle is cable hanging, choke hanging, idle screw being too far open, vacuum leak and if all that fails - lean as fruck jetting the EPA of the lovely USA blessed us with.
Cool.
Buddha.

Would valve clearance also have anything to do with it ? I have only just bought the bike, so don't know when it was done last.


Try lowering idle with the idle screw after its fully warmed up. If you get to 2k and the bike just stalls, then your valves could be the issue.
I doubt it, I think hanging cable or idle screw screwed way too far in may be the issue.
Cool.
Buddha.
Title: Re: Temp sensors ???
Post by: bumpy on August 30, 2017, 06:30:07 PM
going to rip the tank etc off it on the weekend, and have a good look over the linkages, etc, and hopefully i will find the answer there. Will warm it up, and I'm going to make a video recording before i take anything off, to show what it's doing, may help people understand what i'm talking about.
Title: Re: Temp sensors ???
Post by: yamahonkawazuki on August 31, 2017, 08:03:09 PM
could also check cable issue ( see if too short) by starting and see if speed changes by turning handle to full lock/stop. ya no temp sensors. i know you could add those if you were handy with computer parts. and had the absolute desire to add them. but frig no theyve never had them. bikes as simple as it gets. no need for sensors. there is however a possible need for a new service place. ( you could confirm that if you called and asked for both a water pump plus a radiator cap for a gs500 )
Aaron
Title: Re: Temp sensors ???
Post by: bumpy on August 31, 2017, 10:25:29 PM
Will be checking all cables. There feels like no play at the throttle. Will be looking at the choke, throttle, idle screw, and test for leaks. Just want to get it sorted, so i can go for a ride.
Title: Re: Temp sensors ???
Post by: The Buddha on September 01, 2017, 12:43:05 PM
Quote from: bumpy on August 31, 2017, 10:25:29 PM
There feels like no play at the throttle.

Bingo - that is bad. Play in cable = throttle closing fully (atleast to idle screw). No play = cable holding butterflies open.
Cool.
Buddha.