Just 48 Hours Left! 05/01/2017Enter The Giveaway!
By Ron Denham
Appologies for the book but bare with me here, in need of some input... Ok, so i bought a wr250f it wasnt street legal i made it legal and got plated through south dakota. I did a baja designs enduro lighting harness kit with the stator modification. Put an fmf slip on exhaust on it and jetted the carb. I forget what jets i used and i put an air fuel mixture screw in it.
Problem1.After my baja kit i put on it wouldnt start. Turned out that the solenoid under the seat was loose or something i pushed down on it when it was clicking and it started running again.
Problem 2.Went riding, it ran great on the trails. Went riding for a day or 2 on the street, after a while the electric start stopped working and it became a bitch to kick over. It started making the same click noise like when the battery is dead under the seat. Idk whats up with that. Then on the street i was riding and the bike stopped having power in the throttle i would pin it full throttle and it wouldnt take off like it usuallt does. I pulled over, let it sit for 5min and kicked it over again and the power i had came back in the throttle. It did that 2 more times durring the ride and i went home. Do you think this is a computer issue, a carb issue, fuel air ratio issue. Im going to do an airbox mod on it thiss weekend maybe thatll help.
Problem3. I ordered some rims and stuff from warp9 so i can sumo it out and i was curious on what size sprocket would make my gears longer and better so im not maxing my rpms out at 40mph. I can do a solid 65mph on the bike but thats like pushing it and im in 5th gear as soon as i hit like 30mph, id love 6gears but im trying to avoid regearing the bike and using a smaller sprocket in the rear and maybe a tooth or 2 bigger in the front i guess, i still wanna be able to pull wheelies. I feel like im gonna blow the motor if i leave it alone and just ride street with it. Mind you this was the wr250f=for off road use only. not the wr250r=street legal from factory, i live in nj.
I should have just got the street legal one or a supermoto already done but i wanted to build one and make it custom for me. I already put alot of money in to it and dont even own it 100% yet so im not trying to get rid of it anytime soon. Im not even done with it yet.
I've done a little bit of searching and I can't seem to find a reliable source for the stock sprocket set up for my bike, 2008 KTM 250 XC-F. I bought it second hand with 13/50 which was great to learn with, lots of torque to the rear wheel and it lugs well with the 280cc Big Bore kit. My issue now is that I am beginning to advance in my riding skill and constantly find myself needing more speed. I top out at about 38-40 mph and in hare scrambles (straight open sections) and even on big MX tracks (XL double features) I need more speed at times. I am open to suggestions about what works for others but would also like to know what came stock on this bike.
I have been having a problem with my CRF70F for a little while and after trying to make adjustments to fix it with no results I thought I would ask around.
Also I have not found any answers online about this problem, one person claimed to have had the same problem but never got an answer and the question was almost 7 years old on the site.
My problem is that my bike will continue making a "click" ing sound continuously while at all times when at idle and while driving. At idle, the sound is very slight and sometimes not noticeable, but when the bike is put into gear it does get louder and faster.
Along with the sound, it also causes the bike to receive the power from the engine in "jumps" where something seems to be skipping inside the engine.
If anybody has ever had this problem or has any idea what it could be any help would be very greatly appreciated.
My 2014 KTM 500 EXC is pushing 510cc, but it's not making the perfect hill climbing bike. My brother's motocross 2013 KX450F is much better. His first gear is nice and fast, his second gear can be run quite slow but also very fast, and his 3rd gear can be run pretty slow and super fast. My bike can't achieve this no matter what sprocket combo I try. My bike wants to keep the range of the first gear so short that it is almost unusable and the same goes for 2nd. Then when it is time to shift into 3rd that gear is too spread out. I can be on the rev limiter for 3 seconds and when I grab 3rd gear it will bog on me. If you are wondering I really don't think anything is wrong with the motor so let's please try avoiding answers like - "get your motor checked out".
So far the best combination I have found for the purposes of hill climbing are a 15T on the front and a 47T on the back. This makes first gear somewhat usable, and 2nd gear has a ton of power, but it hits the rev limiter almost always and then grabbing 3rd gear just causes a complete loss of power.
What is going on in a transmission that is causing this problem? Is there any hope to altering something to get what I want? I am willing to spend big money to get it. Let's just say that I am willing to spend $2500 at the drop of the hat for a solution. And no...I don't want a motocross bike because I want the advantage of the bigger motor
In the attached photo I hit the rev limiter about right there. And at that spot my brother is still accelerating in 3rd gear. It just doesn't make any sense.