I did this job last summer when I replaced my cams. I watched the BaltimoreGS videos on YouTube but they didn't show the exact problem.
I found the work around in the 2006 service bulletin re: cam walk/replacing cams. Suzuki recommends NOT trying to use the cam-cap to force
against the valve-spring pressure, as it can damage the bearing surface.
1)set up timing, count the pins, rt mark etc. When setting up the initial cam timing, be sure to draw to chain taught to the exhaust cam.
After timing, any slack in the chain should be at the backside/tensioner side of the engine.
2) Install cam caps on the intake.
3) Very carefully rotate the engine backwards, if your wrench is pointing straight up on the timing bolt, it needs to go 90 degrees to the left.
You can watch and
just rotate enough that your left exhaust lobe releases the bucket. Install exhaust cam-caps.
4) ***********
Stop!!, do not attempt any more rotation of the engine until you install your cam chain tensioner****************
5) With the Cam-chain tensioner installed, there should be good tension on the chain and it's safe to slowly rotate the engine forward to RT. Now re-check your timing, pins etc
before rotating through a full cycle.
Here's a pic of the Suzuki doc, hope this helps.
