www.gofasters.com has the parts and fiche online. I still prefer to call because they are great folks to talk to. Same goes for North Tahoe Motorsports. I find the phone works best, no so with most things I buy, because of the learning factor.
What part of the country are you located in? Also try your local dealer.
Her are the listed NY dealers form the Gas Gas USA site. Some may be gone or trials bike only.
Dirt World Cycles is a very active dealer in Johnsonville and contributor here on this site.
Dirt World Cycles Ron Brundige 518 663 5000 3224 Rt 7
Johnsonville, NY 12094 EDirtworldcycl@NYcap.rr.com
Fun Wheels Ltd. Bob Davis 631-289-9242
fax 631-289-4731 2297 Rt. 112
Medford, NY 11763 funwheels2297@yahoo.com funwheels.com
Marshall's Motorsports Dan Marshall 518-884-0100
fax 518-884-0717 1490 Saratoga Rd.
Ballston Spa, NY 12020 marshalls113@aol.com
North Country Cycles Brad Vrooman 315-768-4718
Thats Write We Are Located In Between Albany New York And Bennington Vermont On Rt 7. We Have Been Stocking More And More Every Day. Feel Free To Call Ron @ Dirt World Cycles 518 663-5000 3224 Rt 7 Johnsonville Ny 12094 We Are Actually Located In Pittstown.ny M-f 9 To 6 Sat 9 To 2 Thanks Skidad
I live about 30-minutes south of you in Niskayuna. Been riding GasGas enduro bikes since before I moved here in 2001. Never had a problem getting parts except from that one dealer you mentioned that's near you. Although, to be fair, when I needed a new piston for my '03 300, they had one on the shelf.
With the expanded aftermarket in GG parts I've been able to get a lot of parts through a local orange bike dealer. For GG-specific parts I order through gofasters. They had everything I needed in stock.