Motorcycle not following?

Hello!

I bought a new Fantic xmf 125 competition with 14 kilometers on it. It has a two-year factory warranty. I wanted to know how long it takes to break it in, i.e., how many kilometers.

Also: What happens if I theoretically ignore the break-in procedure and let the revs rise above the limiter? (Or simply slightly higher than 5,000–7,000 rpm) Would any resulting damage be covered by the warranty or not?

I'm still new, sorry for the question.

Thank you

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davegarten
3 months ago

Without careful running-in, engine damage can occur. Furthermore, new engines often need to have their oil changed after around 1,000 km.

Since the manufacturer points this out, the warranty will certainly be void if you intentionally cause damage by driving at very high revs, contrary to the manufacturer's specifications. The question is whether the manufacturer can prove this. That could be difficult. However, newer motorcycles almost all have a small on-board computer, and this sometimes records certain data that could be read by the manufacturer in the event of a claim and used as evidence. Based on this data or other traces on the motorcycle, the manufacturer could possibly accuse you of negligent handling and refuse or reduce your warranty coverage.

davegarten
3 months ago
Reply to  davegarten

Regarding the first question: "Breaking in" usually refers to the first thousand kilometers driven. After that, you're free to drive. High revs, especially sustained high revs into the redline, can generally shorten the engine's lifespan and are not recommended. In other words: You can, for example, start off powerfully in second gear, but you should then quickly shift up to third gear when you notice that you've exhausted second gear's power. It's especially bad for the engine if it's idling (at a standstill) and you pull the throttle all the way to the maximum and let the engine rev in the redline, all without any cooling airflow. Then it can easily happen that after 10-30 seconds, the engine overheats, leading to piston seizure, etc., in other words: engine failure.

migebuff
3 months ago

You're probably currently using a break-in oil in your engine, which has a slightly lower lubricating effect to allow the pistons and cylinders, among other things, to break in as quickly as possible. This type of oil is the exact opposite of one that can withstand high speeds and high loads. So, your plan is doubly bad for the engine.

Reincarnator
2 months ago

Motorcycle manufacturers still specify break-in rules, while this is no longer necessarily common practice in the automotive sector.

In the beginning, the engine components still need to "grind in" to each other a little, although this is less important than it was 50 years ago given today's very tight manufacturing tolerances and precision.

I would stick to the 200 km recommended by Fantic and change the engine oil after 1,000 km if the maintenance instructions don't specify this earlier.

Details:

Fantic says:

ENTRY RULES

When you use the vehicle for the first time,

A break-in period must be completed, which

for the proper functioning and the

Durability of the vehicle is important.

During this period, certain rules must be

must be followed to protect the engine components

and the vehicle to the following maximum performance

to prepare (after running in).

The following recommendations are indicative and

should help the user to achieve a good entry

help; non-compliance does not necessarily have to

cause immediate damage, but they

can have a negative impact on engine performance and

components of the vehicle in general.

LOADS

The components of the engine and the vehicle

must be charged accordingly.

It is equally important that the load does not

must be too high nor too low, since in both cases

the engine and vehicle components are affected

become.

STRETCH

When driving on mountain roads, the engine,

the brakes and suspension are not forced

become.

Preferably, roads with curves and

slightly hilly roads should be chosen, where the

Engine, brakes and suspension temporarily

be claimed, but then there are also times

in which they are only slightly or not at all affected

become.

SPEED

Change the speed gradually (without

sudden and complete accelerations).

Full acceleration is allowed, but

DO NOT drive long distances where the

Throttle grip is fully turned (full load).

BRAKING

The brake pads are new when purchased; the friction surface

does not rub perfectly at first

the discs. For perfect functionality

it must be retracted in such a way that (at

braking) fits perfectly against the disc.

Break-in requires approximately 200 km (125 miles)

on urban routes.

During this period you will have to brake longer distances

into consideration and operate the brake lever

more powerful. Sudden and longer braking maneuvers are

to avoid.

During the first 1000 km (625 miles), carry out the maintenance activities that

intended for this mileage.

WECoyote
3 months ago

This can lead to premature engine failure. No, this is not a warranty claim. The factories are now even supposedly able to determine how much the engine has been revved.