Having another issue with my junky bike. I recently had it worked on (about 2 months ago) where i complained that it was incredibly hard to start. They checked it and told me I had basically 0 compression, and then replaced the 3 crappy intake valves with 3 used ones that worked (according to the work order, i dont even know how many valves these bikes have) and it then started easily. Now, its doing it again. I can turn the engine over with my hand with minimal strength...is that normal? It seems like it no longer takes any strength to turn it over when kicking it. i cant pay 900 dollars again to have them do a few hours of work. It royally pisses me off that I spent that much cash and it is now having the same problem just 2 months later. What is wrong with it and what do I need to do?
250F Yz250f Hard To Start?
- Thread starter AKmotorider
- Start date
Time for a top end? 
I know when my yz lost most of its compression, a top end gave it back.
I know when my yz lost most of its compression, a top end gave it back.
This isn't a 2 smoke. Try checking, and shimming your valves first.Time for a top end?
I like it alot. its pretty similar to "Dirt Bike" but with different contentSpeaking of Dirt rider, I just got a whole years subscription for $7.00Now I'm waiting patiently for my first issue...
I heard from the guy that serviced the bike that the valve seats were slightly worn. Besides shimming and valve clearances, what else would need to be done to replace the seats? Or the valves themselves? Or can I just cut them? I saw no vids on youtube about that...pretty confused.Check the valve clearances. There are videos on you tube for your exact bike on the procedure. Easy and will save you big money. -BIG DAN
These are good and all, and I definitely shouldn't have a problem checking my valve clearances and shimming them, lol. But none of them show me how to take out the valve or fix/replace a valve seat. I have a feeling I'm going to need to do one of those things after measuring because of the bike's issues. I guess maybe the manual would who me how, because other than that I can't find any videos on it.
just send the head out... you are bound to have a yammi (non dealer) snow machine shop in Ak.... They'll be able to fix the head for you no problem or a shop that specializes in building fast machines as well, they know exactly what to look for and would probably be cheaper.