11.07.2021, 13:39
Hi Michael,
The 1999 - 2002 TTR600 Belgarda has a larger left hand carburetor ... 30mm if I recall. The CV carburetor is also different but seems to have the same throat diameter.
This adds significant power in the mid to high range without losing low rev torque.
I read somewhere that the very last XT600 also used the same carburetors (with smaller jets).
You need to use another larger RH CV rubber inlet tube from the air box for the left carburetor to breathe (cut a larger hole in the plastic air box for the tube and also use a high flow air filter).
Unfortunately the larger TTR inlet stub (5CH) won't fit (does not line up with the air box and the carbs will foul on the fuel tank) so the LH carburetor is a very tight fit in the existing SRX stub.
The existing cables and hoses fit just fine. Use the SRX choke.
Standard TTR600 jets work fine with a K&N air filter and a Supertrapp exhaust (5 discs) but is rather loud.
A 2KF head and barrel swap would be good for the larger inlet valves. I have one waiting for the opportunity but the bike is so reliable that I do not want to disturb it.
Cheers,
Rob
The 1999 - 2002 TTR600 Belgarda has a larger left hand carburetor ... 30mm if I recall. The CV carburetor is also different but seems to have the same throat diameter.
This adds significant power in the mid to high range without losing low rev torque.
I read somewhere that the very last XT600 also used the same carburetors (with smaller jets).
You need to use another larger RH CV rubber inlet tube from the air box for the left carburetor to breathe (cut a larger hole in the plastic air box for the tube and also use a high flow air filter).
Unfortunately the larger TTR inlet stub (5CH) won't fit (does not line up with the air box and the carbs will foul on the fuel tank) so the LH carburetor is a very tight fit in the existing SRX stub.
The existing cables and hoses fit just fine. Use the SRX choke.
Standard TTR600 jets work fine with a K&N air filter and a Supertrapp exhaust (5 discs) but is rather loud.
A 2KF head and barrel swap would be good for the larger inlet valves. I have one waiting for the opportunity but the bike is so reliable that I do not want to disturb it.
Cheers,
Rob