Hi everyone, I've got a Honda Spada VT250 that is spraying coolant from the reserve tank. This thing overheats when in the traffic. Fan Doesn't work. I got stuck in the tunnels today and had to pull over and cool down.. Could it be something easy to fix like burping, coolant flush and possibly unclogging the radiator?
I have a VTR250 that does the same thing, but the fan works. Except that the radiator and cooling system was empty and not getting hot. No coolant in the system. I took the tank off and filled it up, then cranked it over. Huge geysers and it would not run. Badly blown head gaskets. I have not pulled it down yet as the bike was meant to be a cheap fix and flip. My suggestion is to check the level in the radiator, take off the cap and run the bike, if you get bubbles or a massive geyser then the heads are likely blown. Inspect the cap, make sure the seal is not swollen and that the spring portion of the cap is working, if in doubt just replace it with a new one You should also check the thermostat by removing it and boiling it to make sure it opens and closes correctly.
I checked the radiator and it's hot though. Will check the level and the bubble/ geyser when I get home. I thought the thermostat only controls the temp gauge. Also, how much would replacing head gaskets at a shop would cost? It's bike just for Learner so I am a bit hesitant about spending a lot of $$$ just on this.
Thermostat controls coolant flow through the system, if it does not open you would expect radiator to stay cold while engine block coolant gets hot. Head gaskets on a v-twin is basically double the work unless you know which one is blown and just do that one, but better to do both IMO
Simple things first .... thermostat, water pump/impellor, radiator cap, air in the system , crud in the radiator , coolant flush Check the plug and wiring to the fan switch .... run 12V direct to the fan and see if it actually works
So I'm probably going to pull the radiator out to check the fan. Will replace the thermostat and fan. Will do flush too as I need to drain coolant to access the fan. Will comeback with updates!
