Jun 7, 2004 · The dyno numbers were corrected for atmospheric conditions, but not for drive train losses. Temp was 91 degrees, low humidity and 5,300 ft elevation. The run was made in 3rd …

Nov 19, 2020 · Follow up to my last post showing dyno gains from Gordon's mods. Previous owner of my bike went to the carb like a badger with a bad attitude and messed up the float …

Jul 10, 2010 · the xr400 makes around 29-32 horsepower with stock minor gordons mods. edelbrock clains 35.9 hp with their carb and other air flow related mods (I don't buy it, but that's …

Aug 23, 2004 · The XR is much more tiring to ride fast, and you can't carry as much speed (reasons above). However, it does have tons more torque than the KDX (dyno'd at 46ft-lb at …

Jul 4, 2008 · xr400 supermoto on banjax motorcycles dyno 02077298500

Oct 31, 2009 · Xr400's running without a baffle sound like 70's BSA's with a cheap and 'beancanny' bark. The answer is to run the excellently made FMF 'Q' pipe, which uses reverse …

They dyno test everything. Freddy (who is now the owner) has been with XR's only since the early inception when Al Baker started the company over 15 years ago. If you visit their offices like I …

Apr 30, 2008 · You still may need to get the carb of to check the needle height/position. If you get told a stage one dyno kit for upgrade don't bother, dynojet themselves say the profile of the …

Dec 6, 2007 · the engine that produces the most peak power on the dyno may loose the race by being passed on the tight, low-speed turns that the more mildly-tuned competition can pull …

Sep 19, 2016 · had the pumper for 10+years and it was the best upgrade for the xr400 IMO. Im finding lots of info on the jets used from this site. do you know what needle/needle jet you use …