Coolant leakage on my Triumph Speed 400: What could be the cause?

I observed there was some leakage from the engine to the exhaust bolt.

BHPian Dtovio recently shared this with other enthusiasts.

I bought the Speed 400 after all the positive the responses from the people and media. I've covered more than 2500 kms on this bike.

But today, I noticed some green liquid drops on my engine and transmission casing, still I went ahead to ride it to office. I observed there was some leakage from the engine to the exhaust bolt and then dropping to the transmission casing and also some leakage from the radiator side.

I guess there are some questions to be answered about reliability. Yesterday read the news about a broken Swing Arm of The Speed 400 that was just 600 kms old, that too on a smooth tarmac...!!

Here's what BHPian Funny had to say on the matter:

Coolant leakage. A YouTuber (Travel & Bite) also faced similar coolant leakage issue which was attributed to overfilling of coolant. Your case maybe the same, get it checked at your service center.

Here's what BHPian gtx2 had to say on the matter:

Coolant seems to be overfilled. get it checked, happened with me as well when the bike was new.

Here's what BHPian lazyrev had to say on the matter:

Just want to point out some of the context for this issue here. We need to take the statements of a bike renter from Manali, in whose pictures the bike looks like it has probably been through some serious off-roading, with a more than a pinch of salt.

The bike was ridden 600 kms within just 4 days (not run-in or done with first service), in icy and snowy conditions. This just screams absolute abuse by customers. The bike rental service claims it was a "minor slip" but you can check the photos. There is not a scuff mark on the footpegs or the exhaust. There is just a clean fracture on the swingarm and no other mark.

Cracks like this are usually due to direct impact so if a huge rock was on the left of the bike during some over-excited 40bhp torque-y off-roading session by someone who didnt have to shell out their own 3L for this bike, it could get damaged this way. This was not an incident on a normal city road.

We need to be careful and get more information before assuming that something is wrong with the product. If it had happened to a regular/average customer I would be a lot more concerned.

Here's what BHPian Ratan Prabhu had to say on the matter:

This coolant leakage doesn't seem like an overflow. The bikes are equipped with specific coolant overflow pipe which safely lets out the excess coolant on the floor without touching any other part. This one is an unusual spot for the coolant to leak from but my guess is a break in one or more of gaskets which isn't too uncommon. Coolant hose gaskets are much less sturdier than oil containing gaskets atleast on my CBR250R.

Anyway, anything and everything to resolve this issue should be covered in warranty including the labour. So don't worry. Do let us know what the solution was though.

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