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Your cart is empty.The Watt-Man Thermo-Bob 2 is a cooling system modification for the KLR 650. In stock form, the KLR runs too cool when ridden in temps below about 80F. The colder outside, the worse a stock bike is. The Thermo-Bob 2 eliminates the inconsistent engine temperature and keeps it running at an optimal 195 degrees. Ultimately this leads to better performance and a longer lasting engine.
Alejandro Ganteaume
Reviewed in the United States on October 5, 2023
I put this product on my Kawasaki KLR 650 because the temperature went down and up very drastically. It was put on and now the temperature is always in the middle and there are no overheating or sudden jumps. I recommend it for the KLR 650, I don't know how it works on other bikes, but on these bikes it works perfectly
NATHAN
Reviewed in the United States on January 11, 2023
Regulates the engine temperatureMy engines used to get super hot to where my ankles felt uncomfortableNow I haven’t felt the heat, and that shows it’s doing it job.
jac
Reviewed in the United States on September 7, 2022
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Tom P.
Reviewed in the United States on September 13, 2022
I live in a cool climate but every year take a trip where it gets up in the 90(s). My KLR never really was at the right temperature and always ran cold. The thermo-bob works great and now the temperature is right in the middle. The instructions made are clearly written and the installation was pretty easy. It worked perfectly on my recent 1,000 mile trip through the Cascades to Crater Lake.
John L. Shirey
Reviewed in the United States on December 28, 2022
Kit came missing parts. Specifically the actual thermostat. Finally have time to tear the back down and install just to discover I don't have all the needed parts.
Edwin Medina lopez
Reviewed in the United States on July 11, 2021
Lo recibí a tiempo y completo y funciona tal como debe ser. Excelente producto para mi motocicleta. Muy contento
Meowler
Reviewed in the United States on February 12, 2019
I put this on my 96 klr 650. It keeps the temps a alot more stable. Also very straight forward to install.
dieselpete208
Reviewed in the United States on November 9, 2018
Just bought a used 2015 KLR 650, on Oct 30, 2018. This is my second KLR 650 Previously had a 2005 KLR650 with a thermo-bob. It is a very simple installation. You can find video on youtube, on how to install. The thermo-bob 2 will fit any KLR 650, other than bikes with oversize fuel tank. They have four different styles at watt-man.com for other water cooled engines,and oversized tank on a KLR 650. He also has taken time to make up charts and explain runing temperature with and without one. The package came earlier than expected. Had more trouble getting plastic side panels back on than installing thermo-bob. Before installation temperature gauge would barely come off second cold line, and go up to 3/4 hot when idling, now it takes less time to warmup. water gauge stays in the middle when engine warmed up, and so far has never reached 3/4 while idling. I would recomend it to any KLR owner.
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