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tyler.hettick Started a new thread 2015 Yz250f

12/2/2015 5:15pm
Last August I purchased a 2015 yz250f from a dealer. First off let me start by saying that i dont get to ride much, maybe once a month. Two weeks ago i pulled the bike out of the garage, and began getting the bike ready to go ride. Put air in the tires and put a clean filter on. I...
This forum thread has 25 replies.

tyler.hettick Added a reply to 2015 Yz250f

11/28/2015 4:11pm
If it was running and then died do you think it could be valves? Would that account for such low compression?

tyler.hettick Added a reply to 2015 Yz250f

11/27/2015 4:05pm
Tried using starting fluid.. no difference. Ran a compression test with the throttle fully open, and was about 66psi. I left my manual at school, so i dont have it here to reference. I feel like that compression is low. Does anyone know about where the compression should be?

tyler.hettick Added a reply to 2015 Yz250f

11/24/2015 9:05am
When I bought the bike from the dealer, they offered a 3 year warranty/insurance coverage on the bike. Up to $7000 if it's stolen, and free labor and replacement of non-wear parts. If the swing arm cracks, I get a new one. If the frame cracks, I get a new one. If the motor fails, I get a new one...

tyler.hettick Added a reply to 2015 Yz250f

11/23/2015 7:43pm
Thank you for all of the posts. I recently went out and tried what slackinoff suggested, with pulling the plug again and clearing the cylinder. That didn't get it started. I plan to pull the throttle body off on Wednesday and clean it. I haven't actually done a pressure test for compression. Ill get the compression reading before i tear...

tyler.hettick Added a reply to 2015 Yz250f

11/20/2015 7:51pm
I was thinking possibly a bad injector or fuel pump. I dont know how to check either of those items. I know its getting gas, thats about it

tyler.hettick Added a reply to 2015 Yz250f

11/20/2015 7:42pm
I have taken the vent line off during this time of diagnosing to eliminate that as a problem. I'm about to just take it to the dealer and eat Ramen for the next month

tyler.hettick Added a reply to 2015 Yz250f

11/20/2015 7:25pm
i have adjusted the idle many times. No different. It has a fresh air filter, well from two weeks ago. Ill go out and take the air filter off and try to start it without the filter. The bike has 18 hours, with desert riding hours and track time. I'm trying to eliminate everything else before pointing at the motor...

tyler.hettick Added a reply to 2015 Yz250f

11/20/2015 6:58pm
I tried unplugging the kill switch and starting it. Didn't make a difference. Every 20 kicks or so the bike does make a pop, sounds like it's back firing. Makes me think its getting an irregular spark? Unfortunately i do not think it is the kill switch. Thank You though