RGV thermostat
Moderator: rztom
- motosapien
- Posts: 396
- Joined: Tue Aug 26, 2014 2:27 am
- Location: Scottsdale, Arizona
RGV thermostat
I have an RGV thermostat, I checked, its working and also is a direct fit. The rating says 50C, I think RZ's is in mid 70C. I know that the bikes perform well at lower temperatures. What is the optimum temperature for RZ...is this upgrade good or bad?
Thanks
Thanks
2>4
Re: RGV thermostat
Good trick for hotter climates...but need the spacer for it to work properly.You can find them on ebay for chips or Brian on this forum used to sell them but haven't seen him for ages.
Im about to fit one to my bike.
Im about to fit one to my bike.
- motosapien
- Posts: 396
- Joined: Tue Aug 26, 2014 2:27 am
- Location: Scottsdale, Arizona
Re: RGV thermostat
Yea that was the plan and try to keep it cool during summer. Can you please elaborate about the spacer, I read somewhere that its a direct fit.L.B wrote:Good trick for hotter climates...but need the spacer for it to work properly.You can find them on ebay for chips or Brian on this forum used to sell them but haven't seen him for ages.
Im about to fit one to my bike.
Thanks
2>4
- motosapien
- Posts: 396
- Joined: Tue Aug 26, 2014 2:27 am
- Location: Scottsdale, Arizona
Re: RGV thermostat
Found the thread.... very interesting. Now I have to start looking for the spacer
2>4
Re: RGV thermostat
The RGV thermostat has a rubber gasket that is split enough so the thermostat slips into it if ya get what I mean. Ill see if I can get a pic. I wonder I that would take up the space?
http://www.cmsnl.com/rgv250-1993-p_mode ... 767012c00/
Dave
http://www.cmsnl.com/rgv250-1993-p_mode ... 767012c00/
Dave
RZ 250 85 (Waiting)
RZ 250 85 (Parts)
RGV VJ21 250, Australian Speed Record Holder, MPS/G 250, 140.5 MPH
BMW R1100S 99 (Its Red)
BMW R1200GS (Its BIG)
http://www.dlra.org.au/index.htm" onclick="window.open(this.href);return false;
RZ 250 85 (Parts)
RGV VJ21 250, Australian Speed Record Holder, MPS/G 250, 140.5 MPH
BMW R1100S 99 (Its Red)
BMW R1200GS (Its BIG)
http://www.dlra.org.au/index.htm" onclick="window.open(this.href);return false;
- motosapien
- Posts: 396
- Joined: Tue Aug 26, 2014 2:27 am
- Location: Scottsdale, Arizona
Re: RGV thermostat
Yea I have that too.... will install it and take measurements tomorrow or over the weekend.
2>4
Re: RGV thermostat
The thermostat extends as it heats up, it will fit cold but bottom out in the head before fully open. Throw it in a pot of boiling water and measure vs. cold and you'll see what I mean.
Re: RGV thermostat
Could someone please explain why the lower temp RGV thermostat is a worthwhile modification ?
I always thought once they opened that was that
I always thought once they opened that was that
Cryin' In The Beer Of A Drunk Man
Re: RGV thermostat
They open when they reach the rated temp, but as the temperature drops through cooling they start to close again, restricting flow to the radiator. This modulating of flow maintains the temperature at the set point. A 20 degree cooler thermostat will keep the engine temperature 20 degrees cooler provided that there is sufficient cooling capacity.
There is also a Yamaha snowmobile thermostat that fits that is 50 degrees.
There is also a Yamaha snowmobile thermostat that fits that is 50 degrees.
Re: RGV thermostat
....
Re: RGV thermostat
I understand two strokes usually produce best power at about 50 Deg
I have one on mine that I bought on ebay as a kit with the spacer, it runs nicely with my large radiator.
My running temp is generally about 52 to 53 according to my trail tech
I have one on mine that I bought on ebay as a kit with the spacer, it runs nicely with my large radiator.
My running temp is generally about 52 to 53 according to my trail tech
Re: RGV thermostat
Ruzty do you have anymore info bout this thermostat?RuZty wrote: There is also a Yamaha snowmobile thermostat that fits that is 50 degrees.
Re: RGV thermostat
Yamaha 82M-12411-00L.B wrote:Ruzty do you have anymore info bout this thermostat?RuZty wrote: There is also a Yamaha snowmobile thermostat that fits that is 50 degrees.
Re: RGV thermostat
Thanks Glyn, I'd have had to clean the garage to find the box......
This will still bottom in the head without a spacer, put it in a pot of boiling water and drop it straight into the head to see how much more room you need.
This will still bottom in the head without a spacer, put it in a pot of boiling water and drop it straight into the head to see how much more room you need.
Re: RGV thermostat
Ah cool thank you gents.