Messages

1

Technical / Re: CR jetting issues

« on: September 25, 2011, 03:21:35 AM »

maybe get rid of the mikuni carb and put a keihin

2

Technical / Re: CR jetting issues

« on: September 25, 2011, 03:16:40 AM »

Im not happy with the way my 05CR 250 is running at the moment.

It fouls up easily if im just riding slow even for a short distance and it never has been very crisp.
On the weekend even just sitting on the start gate for 2 minutes it would choke up even though i had just cleared it out. Although i have issues with it pinging. I dropped the needle one clip position but then it pinged worse so i lifted the needle 2 positions and it stopped it pinging and seemed to run ok on the track.
Its doing my head in not really knowing what to do and i know it will perform a whole lot better once its sorted.
I checked out the FMF jetting guide and they reccomended,
Pilot-35
Main-410
Needle-12-82 second clip position
Air screw- 1.5

At the moment it has
Pilot-40
Main-430
Needle-26-65.......(im guessing you go by the last four numbers on it)
Clip- 4th position....(down from the top)
Air screw- 1.5

I dont know what the standard jets are but have been told that it is one bigger than stock on the main and they go up in tens.
I think its stock apart from the FMF Pipe and shorty and i run 98 octane.

Any help or suggestions would be greatly appreciated if i haven't confused you all

Cheers Scotty

3

Technical / Re: plastic cover

« on: April 15, 2011, 02:20:45 AM »

yeh i think ur right i dont think anymore power i will just leave it

4

Technical / plastic cover

« on: April 14, 2011, 10:27:28 PM »

hey guys on my 08 rm 250 there is a black removable plastic cover under the seat just above the air filter does it make any difference if i remove it whats it for thanks

5

Technical / Re: Had to be towed from my ride yesterday...help please!

« on: April 14, 2011, 10:18:49 PM »

something might have not been put back together properly maybe power valves kick shaft mechanism try them first i hope you ran it pretty oily when you were runing it in prefrebly mineral oil it would be hard to seize if you were just running it in and if you used essembly lube try the first two i wrote at the begining