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4rt clutch

Featured Replies

4RT has separate transmission oil from the engine oil which is great because you can put engine oil in your engine and transmission oil in the transmission and wet clutch👍 change the oil type and replace it frequently to keep water out of the oil because water makes the clutch plates swell.  Occasionally remove and resurface the friction plates to inspect, dry out and remove high spots or irregularities in the friction plate material.  

Dump the old oil into a clear glass container to inspect for water or particulates.  Inexpensive ISO 46 hydraulic excavator transmission oil purchased in quantity is what I use and replace frequently, because at half the cost of specialty motorcycle transmission oils it gets done twice as often and imo works way better.  You should experience very little clutch drag even in sub zero weather using ISO 46

Another possible suspect is air bubbles or water in the clutch hydraulics.

What Elf oil are you recommending for his wet clutch application?

ELF HTX 740 is a monograde ultra-fluid transmission lubricant specially developed for dry clutch gearboxes coupled to 2-stroke engines."

" ELF HTX 740 must not be used in an immersed clutch."

I hear you lemur but that’s what’s recommended in the manual, I’ve used it in mine for 5 years without a problem except for the hole in my pocket......

others may join in soon recommending oils like ATF

 

It's only 6 times the cost of what I've used for 20 years. I recommend frequent fresh oil changes with oil that states it is good for wet clutch applications.

11 hours ago, Cookiemonster said:

Replace them with the apico dimpled plates & Elf oil

works a treat on my 4RT 260 😀

I've done exactly the same, what a difference .

14 hours ago, lemur said:

What Elf oil are you recommending for his wet clutch application?

ELF HTX 740 is a monograde ultra-fluid transmission lubricant specially developed for dry clutch gearboxes coupled to 2-stroke engines."

" ELF HTX 740 must not be used in an immersed clutch."

Sorry to do this but ELF HTX 740 is very well known in the trials community as a for use in wet clutch trials motors , regardless of what it states on the labels  .More specifically for use in Honda trials clutches and has also  been used by some riders  in other brands of trials bikes for many many years. 

I can order ELF HTX 740 as a Honda original part or special order it from somewhere that won't ship it here anyway and would cost me about 70$ per litre 🤔 do you think SJ grade oil is worth 70$ per litre?  You don't pay that for oil bottled in France on your side of the ocean but you still pay exorbitant prices for simple oil that only needs to last several hours before being replaced.   Sorry but I pay 10$ per litre for oil that works just fine because it gets changed frequently which is why I don't have clutch problems.

5 hours ago, lemur said:

I can order ELF HTX 740 as a Honda original part or special order it from somewhere that won't ship it here anyway and would cost me about 70$ per litre 🤔 do you think SJ grade oil is worth 70$ per litre?  You don't pay that for oil bottled in France on your side of the ocean but you still pay exorbitant prices for simple oil that only needs to last several hours before being replaced.   Sorry but I pay 10$ per litre for oil that works just fine because it gets changed frequently which is why I don't have clutch problems.

Hello, I do not think anyone can argue with your logic it is just a Trial bike thing , Certain brands of stuff are what make people happy in their world. The main question is why would a person need to spend 8000.00 when they could save themselves 7000.00. https://youtu.be/4TGavmuYCCQ?si=IxjTqoG2zf5EE   Start it a 3m 46s  for some trials action. There are many people in UK club trials who would struggle to do that on a current 2026 250cc bike..

Edited by Tr1AL

20 hours ago, Tr1AL said:

Hello, I do not think anyone can argue with your logic it is just a Trial bike thing , Certain brands of stuff are what make people happy in their world. ...

Found 08C35-HTX-740 in stock and available from Acura dealers 👍 it's only $144.60 CDN  🤣  that's a lot for happy.

1 hour ago, lemur said:

Found 08C35-HTX-740 in stock and available from Acura dealers 👍 it's only $144.60 CDN  🤣  that's a lot for happy.

poor people are starting to realise how rich people got rich , why sell a 100 bottles when you can sell just one and then take the rest of the day off. to cheat at golf.

2 hours ago, Tr1AL said:

poor people are starting to realise how rich people got rich , why sell a 100 bottles when you can sell just one and then take the rest of the day off. to cheat at golf.

🤔 By repackaging something simple and selling it like something special ?    Yep, shop at your local farm supply where people buy oil by the pail and get the same stuff or better at a fraction of the cost, then you can retire the rich guy that lives in his own trials area 👍

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