V4 V4 Rally - How Deep ??

Discussion in 'Multistrada' started by mikeybikey, Oct 16, 2025 at 1:08 PM.

  1. Has anyone had experience of riding through deep water on a v4 multi as i would like to know what is considered "safe depth". The only reason i ask is that i was in south west ireland recently on an isolated single road "tarmac with grass in middle of road type track" called the black valley and right in the middle of storm Amy and found myself in the position of not being able to back track and only progress forward through the deep flooded track. I had no idea of how deep it was going to get and did not like the thought of being stuck there overnight so had to risk everything and plough forward. It got up to around 1ft and well over front calipers but coped fine in 1st gear , so just wandering how deep these bikes could go if really pushed ??.
    ps, if anyone is planning a trip on the WAW south west ireland, let me know because i found many superb and much less well known routes in this area which i can send some gpx files for
     
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  2. In theory you can go as deep as the air intake, it mustn't suck in water obviously, hence Land Rover green lane heroes fitting snorkels to go through small puddles, and don't roll off the throttle if the exhaust exit is under water. Everything thing else should be fine, they get washed and survive
     
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  3. So in theory , if the air box is just next to the ignition button ( i think ? ) , then if i feel water around my "plum line" or "crown jewels" line if sitting on the saddle , then its out with the speedos !
    This would mean the whole engine is covered with water inc spark plugs and would still work ??
     
  4. In theory, let us know how you get on :upyeah:
     
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  5. Deep water , 250 Honda with the air box at tank level . Das Boot. 24k of Ducati , for me , a hose pipe and a wash bucket will be closest to a water crossing , tools for the trade and all that lol
     
  6. You’ll be absolutely fine. I got caught out on France a couple of years ago on my V4PP, the roads were all shut but I needed to get going, it was nearly up to my knees at one point.
     
  7. Is there no schematics or service manuals showing how the air intake looks? With that would be a bit easier to work out location, and wade line height.
     
  8. Front of the beak I would say?
     
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