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Old 11-12-2012, 01:21 AM   #71
oldxr
Beastly Adventurer
 
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Joined: Jan 2007
Location: central komifornia
Oddometer: 1,112
I have a xrr .I did a major whole bike upgrade 2 years ago and have been riding it more than my road bike.A suggestion-if you install a speedo unit like a trailtech vapor you can drill and tap a temp sensor hole in the thermostat housing instead of using that plastic t that you cut a hose to install.Less parts to leak.I have been running ironman sprockets with a rk x ring chain lubed with triflon.No noticable wear on sprockets.you will probably need a better seat.The seat concepts seat is working good for me but if you are tall there are other off the shelf options -like a guts tall seat.Or send it to a custom builder.I can run highway good with 15-47 gearing and still be so-so on single track-but I am not that big of a guy.I did a top end rebuild on my motor and would not use a hotcams cam again.No problems with quality or performance-just the fact that the auto decomp on the oem cam is now gone and the engine has to be in a very special place just past tdc to start.If I did the top end again I would have a cam specialist like web camshafts or megacycle reweld the oem cam and the oem rockers.There is a post right now on thumpertalk about grinding .050" of of the throttle slide to eliminate off idle bog.Even with the 68s pilot jet and the b53e needle 4 notches down I still had a big lean spot from 1500 to 3000 rpm that I found when I dynoed my bike.I went back to the near-new edelborck carb that came with the bike.It runs much better but after another dyno run found I a little rich and lost 3 hp on top.I installed a leaner needle but I havent been back to the dyno yet.The Hodakaguy brace is awesome-I have layed my bike down on both sides and the brace keeps the tank off of the radiators and makes the tank easier to install.Most people have installed a Keihin fcr carb.Another little trick is to run a cdi box from an early xr400-more initial advance +1000 rpm more revs.The oil level sight tube kit is nice to have.

oldxr screwed with this post 11-12-2012 at 01:22 AM Reason: spelling
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