How many milliliters of gear oil should be added to the Jog i?
3 Answers
Jog i requires 100 milliliters of gear oil. Below are the relevant details: Appearance: The Jog i surpasses the new Jog in terms of body dimensions. Except for the unchanged seat height, the three dimensions have increased from the previous 1710, 630, 1025mm to the current 1805, 685, 1050mm. After shedding the slightly angular design of the new Jog, it has returned to an era of rounded aesthetics. Performance: The Jog i is equipped with a "Blue Core" engine. Although it emphasizes fuel efficiency, its performance is by no means compromised. With a displacement of 125cc, it offers quick acceleration among scooters in the same class and boasts strong low-end torque, outperforming even the DL250. However, the front suspension of the Jog i is notably poor.
When I ride my Yamaha JOG-i, I've changed the gear oil several times, and each time I pay close attention to the quantity. Generally, adding 110 milliliters is enough—no more, no less. A mechanic once taught me why this amount is ideal: the JOG-i's transmission is precisely designed, and overfilling can cause excessive oil pressure, leading to oil splashing out and leaking everywhere, even damaging the seals. On the other hand, underfilling results in insufficient lubrication, causing gear friction, overheating, and potential wear. When I change the oil myself, I always prepare a measuring cup and pour exactly 110ml. Remember to drain the old oil first, letting it drip for about 10 minutes, then tighten the bolt before adding new oil. For inspection, start the motorcycle and let it idle for a few minutes, then check the oil level in the observation window—keeping it in the middle is ideal. For regular maintenance, it's best to change the oil every 5,000 kilometers or six months—don't wait until you hear strange noises. This kind of care keeps the bike running smoothly and saves a lot on repair costs.
From a mechanical perspective, controlling the gear oil volume is crucial. The Yamaha Jog-i's transmission design is matched with approximately 110ml of oil, ensuring full gear coverage without overflow. During my research, I found that excessive oil causes foam formation, reducing lubrication effectiveness, while insufficient oil leads to poor heat dissipation and accelerated wear. When adding oil with a funnel, simply pour the precise 110ml measured in a cup—this is the standard. Additionally, oil viscosity matters: use 80W-90 for summer, while a thinner grade in winter ensures better flow. During each oil change, I inspect the sealing ring for aging, as leaks waste fresh oil. Regular maintenance not only extends transmission life but also enhances riding safety, especially ensuring stable power response on steep mountain slopes. I recommend beginners learn DIY—simple tools and a bit of time are all it takes.
