Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
1991 Cr 250 ?'s Please HELP!!!!
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="Charlie Mix, post: 1192543, member: 75326"] I have ridden that bike for over 2 years. Great bike! I've ever used premix ratio 40:1 with MOTUL 600 and i've found the piston and crank in perfect conditions. If you foul plugs probably you have to work on jetting. Before re-jetting the bike I suggest to check the reed valve to be sure that reeds are not worn and close perfectly and to check also the silencer wool and eventually repack it. As refer, the standard jetting of that bike is : 185 55 1368N 2nd groove Air screw 1 turn and half The 1991 model is about the same of 1990 and was completely redesigned in 1992. Older models are different, but 88-89 bikes may have the same kick start lever. If you need to replace clutch plates (and springs) you can do the work without any special tools, is a very simple job. Remember to soak plates in new tranny oil before install them. If you need to replace clutch basket you need a special key to hold the basket. The central nut should be tightened at the correct value using a torque wrench, in order to avoid damages to the clutch needle bearing. A tip: In order to have a more responsive throttle keep the carb bowl level at 20-22 mm. instead of 16 mm.(stock). [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
1991 Cr 250 ?'s Please HELP!!!!
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom