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I'm having a mental debate on whether or not to pick up a Gnarly and Turbinecore 2 for my YZ250x. I want more lug and chug, and plan on getting the RK TEK head as well as an exhaust kit. First I wanted a quality exhaust set up to boost the power across the full rpm range, while having a spark arrrestor to keep woods riding legal and safe. I'm getting mixed messages about the power gain(or lack of) from this combo. FMF Stated on the phone and email that "There is no gnarly specific to the YZ250X and it is the same as the pipe for the YZ250. However the Turbinecore 2 is specific for the YZ250X to work with the back pressure generated by this motor." So essentially my understanding is the gnarly would be a zero sum gain, just a tougher and shinier pipe, but the Turbinecore 2 would be a gain. The tech then went on to say I would get a power gain across the entire RPM range with the Turbinecore 2, but wouldn't say whether or not the Gnarly was any better than stock. Running a Lectron which is dialed perfectly for the bike, and overall the 250x package is fantastic just want some more grunt down low.
Looking for individual experiences so far with exhaust changes on the X.
I was riding in my local trails yesterday and decided to stop for lunch. I pulled up in my driveway and noticed a big wet spot under the bike. After some inspection I realized that a bolt was completely missing from the right side of my engine right behind what looks like a drain for the oil filter (also right in front of and under the brake pedal). I have no clue what this bolt was for or how it rattled itself out but it seems to have been a drain plug of some kind. I lost a ton of oil (my boot was covered in oil and the whole right side of the engine is covered). I'm planning on obviously draining the rest of the oil and replacing the oil filter and all since I was almost due for an oil change anyway. Should I be concerned about having run the bike with little oil and any damage that may have caused? I've seen a few threads on people who lost a bolt and seized their engines but none on this scenario. Can't believe how lucky I got but if anyone has any advice on checking for damage or if anyone knows what that bolt is or where to get another please let me know. Thanks!
Hi. I have a honda 2006 crf250r rolling frame with no engine. I want to purchase a reconditioned engine off ebay but i want to confirm first with year model engines will bolt streoght into a 2006 frame. I have searched the internet for answers but i always find different answers
I have looked all over and cannot find a good accurate resource out there. I recently decided that it was time to tear into my 1990 DR350S. (suzuki) it would not run reliably or really at all anymore and I found that the compression was only about 80PSI. After tearing into the motor I found that overall it was in pretty good shape.. the Oil ring was stuck inside the piston so that it was not sealing well and it appeared that the valves may not have been seating well. Really I figure I can re-grind or re-seat the valves, replace the top end gaskets and piston rings and it should be good.. what I am wanting to know is how do you know if you should replace more (valves, timing chain, ect..) I do have a strong Mechanical background but have never liked or done much engine internals.. any advice would be greatly appreciated. I do have pictures of the valves.. you can see them here https://goo.gl/NH76kw... let me know if that does not work and I can copy them to this post.
Okay so I have an Azusa Minibike Kit, and I got it all together with a Predator 212cc Engine from Harbor Freight.
Here is the problem, the chain will come off after about a minute of riding, its as tight as I could get it, its straight in line with the sprocket and clutch
Any ideas? Anyone have this problem before?