Friday, October 23, 2026

So, What's Inside Yamaha PG1 Fuel Filter?

Recently I replaced the fuel filter of my PG1 after almost 38K kilometers and I never seen such black filter my whole life, thankfully the machine still running smooth. 

Well one of the reason why I replaced the fuel filter was because recently I noticed that after running or moving for around 60km/h the speed suddenly stopped and even worse getting lower. I thought it was the filter since it was 38K already but I was wrong. The real reason why the bike behaved like that is because of the plug coil, before upgrading to Tuneboss ECU I replaced the plug coil to a performance coil with the brand BRT (I have posted about that in previous entry) and I never thought that would be the cause, maybe the new ECU doesn't responded well with the new setup. So after thinking about it for a while I made a conclusion that if it's not the fuel, it has to be the spark and I replaced back the stock plug coil and luckily the bike comes to normal as before.


Old versus new! It is advisable to replace the filter after around 15K of mileage before it turns like in the picture. The new one will cost you around RM20 from shopee platform as it is sold by shops from outside Malaysia especially Thailand and Vietnam. 

I cut open the old filter to examine how it's like inside the filter itself after 38K kilometers of abused & used. 

You can see for yourself how dirty the fuel we are using trapped inside the filter cloth. Just imagine if there's no filter between the fuel injection system & the fuel tank. One thing for sure we'll need to do throttle body cleaning regularly to ensure the smoothness of our ride every time.