By Brock granberg
I just did my valve adjustments and put my YZ250f back together as far as the valves, shims buckets and cam covers on but I need adhesive for the plastic valve/cam cover and I am stumped as far as what to use and where to get it or even what to call it! Need to get some soon im in need of a ride!
I getting ready to tear into my 426 to freshen up the topend in to the bike I dont how many hours are on the topend or bottem end I a the 3rd ownner.
I was thinking about a 444 big bore kit what I dont like about it you cant over bore the cylinder again if something go's wrong down the road.
Is a High compressin piston worth it with the stock bore.
I want to have a good port job done on the head from a good know shop.
I already have hot cams in the motor I going to reuse so what kind of power should I get out of the bike.
I put a new cam chain when I installed the hot cams in the motor about 10 runing hours ago.
The bike has SS valves in it already the year 2000 came with them I have them checked and have the vavle seats lapped but they seem fine.
Probably my first post here. I am installing Hotcams stage 1 camshafts to my DR-Z 400 S 2006 model and i am adjusting valve clearance. Currently my valves are like this
0,28 mm 305mm adjustment piece -> i changed that to 310 so it goes to 0.23 mm
0.25mm 305mm adjustment piece -> i changed that to 310 so it goes to 0.20 mm (right to Hotcam spec which is 0.20 mm to exhaust)
0.15 mm 278 mm adjustment piece -> fits right without adjustment to Hotcam spec which is 0.15 to intake
0.18 mm 270 mm adjustment piece -> i keep this so it stays in 018 mm
Now question is should i change Intake valve 0.18 and 270 adjustment piece to 275 so it would go to 0.13 mm or do i keep it as it is? Personally i think it wont make difference and i have always understood its safer to have valve clearance to more loose side just in case. I will be checking valve clearance periodically anyway as its pretty quick job to do and i have good garace to do it.
i got about $1000 extra on an insurance claim, can't make up my mind if i want to put it towards power or better handling. which one of these mods will make the most noticeable difference? this is for a 2001 S model that is used 99% for street use.
So here I am with the new cams in and they don't line up at all like the picture hot cams provides... seems like 14 pins looks much better (3 dots pretty much all visible on both sprockets) but they say to go to 15. See pictures below at 14 and 15. Any help appreciated!