The air box on my 02 280 pro is getting substantial amounts of mud and water in the air box. the rubber between the tank and aibox is in good condition and installed correctly. Is there any known modification to remedy this problem or am i simply stuck with it?

Just add seeds and you get a lovely flower box the envy of other riders.

Yep it gets loads of crap in it but it works ok as the filter stops the dirt unlike the Beta Rev3`s i had.

GG switched to a larger rubber flap and you can get even larger ones that folks use in the SSDT ect.. check your local dealer or online.

The air box on my 02 280 pro is getting substantial amounts of mud and water in the air box. the rubber between the tank and aibox is in good condition and installed correctly. Is there any known modification to remedy this problem or am i simply stuck with it?

GasGas changed the airbox in 03' to include a removable plastic shield over the filter (I have an 02' with a later model airbox installed). The problem is that the front tire throws mud and silt up through the open area under the radiator and then over the engine and into the airbox intake, which then dribbles down on to the air filter and is sucked into the engine.

I also made a shield that fits in the open area under the radiator to keep mud off the engine and from getting into the airbox and you can buy these from most Trials dealers. The shield should really help keep the airbox a lot cleaner.

Jon

Not to Hijack the thread - but is that a custom made header pipe Jon - I seem to recall you mentioning that awhile back, and it looks longer than stock.

Not to Hijack the thread - but is that a custom made header pipe Jon - I seem to recall you mentioning that awhile back, and it looks longer than stock.

Yes, the last the three prototypes I made. In spite of the length, it fits in closer to the frame than the stock pipe.

Back to the airbox problem, it might be a good idea to tape the seat before a wet Trial as the seal on the seat can sometimes allow some water through (past the area where the o-ring ends meet at the front of the seat). I also use Silicone on the junction under the rear fender where the fender meets the box and have re-sealed the box/seat framework junction. I cut about 5mm off the duckbill valve in the bottom of the box to allow better drainage as I'm more concerned with water being able to get out of the box than water entering the box through the valve.

Like I mentioned, the major problem I had was water over the engine and into the intake under the back of the fueltank. I've ridden in some really nasty conditions now and not had a problem with water ingestion.

Jon

thanks for all the advice. ive fitted a mud kit below the radiator and also found out my air box was missing a piece inside designed to direct any mud away from the filter. ive also given the air box a good going over with silicone around the joints, so fingers crossed thats solved it. its getting used today so ill post the results.

cheers all

thanks for all the advice. ive fitted a mud kit below the radiator and also found out my air box was missing a piece inside designed to direct any mud away from the filter. ive also given the air box a good going over with silicone around the joints, so fingers crossed thats solved it. its getting used today so ill post the results.

cheers all

rode all day with no mud in airbox problems. looks like its sorted.

Just gotta fix the forks now. what next?