Q.RTR 180 Front Disk Brake Oil Change!

[QUOTE=sanjeev_sharma;n21787][URL="https://www.zigwheels.com/forum/profile/6"]Roshun[/URL] Thanks for the help, appreciate it. Just replaced dot 3 with dot 3. Should I upgrade to dot 4? And again I will drain all the oil and will fill up with new. One more thing I did not withdraw the oil from brake pipe, but I just got oil out from the upper side container only and put new oil. I did not drain the pipe. And I also changed the oil for front shockers may be they are tight enough now due to new oil change that's why I may not be able to feel that brake shock which was earlier. Is it something may cause of all this? [/QUOTE] Ah, I see the problem. Since you took out oil from the top container, an air bubble could have been formed in the pipe, when you poured in new oil. You will have to open the bleeder cap, near the caliper and drain oil from there, while filling more oil in the top container. While you are bleeding oil, press the lever 2-3 times, and keep filling oil. Then tighten the bleeder cap. The brakes will become tight again after that.

[QUOTE=sanjeev_sharma;n21772]Hello All

I just changed the front disk brake fluid oil dot 3 an hour ago for RTR 180 TVS Bike. Now I feel brake is not that much responsive as it was before could anyone help?

Thanks[/QUOTE] Did the bike have DOT 3 or DOT 4 brake oil before the change? If it had DOT 4 and you topped up with 3, then this issue can happen, as the brake oils cannot be mixed. You will need to completely drain out the oil before topping up. The other issue why the brake feels loose could most probably be because of air in the line. However, you said you have checked for air bubbles. You may need to check again - drain some more oil out, pump the brake and keep topping up till it feels tight. You have to fill more oil than needed to do this. Open the bleeder cap near the calliper and pump the brake and let oil squirt out. Open the reservoir and keep adding brake oil, while pumping 3-4 times to keep pushing oil out. When it feels tight, put the cap back now tightly near the calliper and then put the reservoir cap back on.