I’m new on the forum, I have read a lot in here and find many useful info, however I’m still lost with my bike.
I have some experience with bikes but never this kind of 4stroke.
I bought a wr450 from a deceased guy I notice the bike has been modified (full exhaust ron wood, high flow filter, spark iridium BR8EIX, funny rear suspension and who knows what else) when I bought it, the bike have been sitting for almost 2 years.
I open the carb it had a lot of dry gas, I clean it change the pilot jet for a new one and put a sunlight air mixture screw .
Also change the front suspension seals (thank you guys for the info about that)
I read in here that a normal setting for a wr450 will be something like:
Pilot 45 or 48
Main 165 or 168
Clip around 4 position
Slow 65 or 68
But what I got is totally different
Main (it doesn’t said) but I compared to a 178 and seems even bigger
Clip 3 position (from bottom)
(I ride in Quebec Canada, if it is of any use that info)
The bike runs more or less ok, but start with choke in really high revolutions, when I ride slow in a wooded area it overheats really bad, now I don’t know if it is normal or the jetting has something to do with this.
Some times before a turn, with the clutch press the bikes turn off in low rev., of course when I release it start again.
I have no big complains because for the price it starts and runs, good enough for me, but I’m afraid I will kill the engine if it overheats too much, (like a 2 stroke)
I suspect they play around with the timing (new cam or something) because goes really fast to high rev. But I have no way of knowing (His family doesn’t know).
Of course I can take it to a shop and ask them to fix everything even change the exhaust that I hate (too much noise, I don’t need the power) but I’m trying to spend as little as I can because this is just a hobby for me.
Hope I put enough and the right info, thank you for any tips that you can have about this
Edited by Where-to-ride, August 05, 2012 - 06:09 AM.