Recent content by andrey2004

Got it all back together a few weeks ago, started great, and drove in back yard. Compression is much better now at 208psi (magneto), 200psi (mid, 200psi (clutch). Will be on a trail next week. Thanks for the tip on the valves!

Funny that a similar thing happened on our 2nd Arctic Cat Z120 sled a few years ago. My kids were riding it and the valve broke in exact same manner, and was driven into the piston sideways. On a single cylinder 120cc engine. I have a picture of it somewhere. Anyhow with this adventure now...

I installed the chain, timing marks dead on. Motor wouldn't turn 360, stopping with cyl-3 @ TDC. At that point didn't need a scope :( Removed the head and..... This is why I stayed away from 4-strokes for so long... $$$$

Here is the condition of chain dampers, which seem okay to me, considering remaining potential travel in tensioner. I figure the damper wear is less than 2mm in total. Tiny wear groove in this one, less than 1mm Almost no wear in this one, which the tensioner pushes: Slight bulge on sides...

I followed instructions listed in the forum here, and so being aware of that possibility, we made about 3-4 rotations. It took multiple tries to make it proper, as we eventually had to 'counter' exhaust cam a little until it settled properly. We checked compression right after. Did it with my...

This is very puzzling... A year ago I purchased 2005 Venture RS sled with ~4,500k miles with a bad tensioner (orange dot), and a jumped exhaust cam (by one tooth). It was ticking. After replacing the tensioner with the blue dot, (purchased OEM from Partzilla), compression was around 245psi...

Hi everyone, A year ago, I bought a used 2005 RS Venture with a bad timing chain tensioner. It was ticking. Replaced the tensioner with the updated model, and the sled worked great for ~50 miles, and the timing jumped again. Compression was over 200psi after tensioner swap, which is the...