1989 cr250 exhaust valve adjustment? - Pirate4x4.Com : 4x4 and Off-Road Forum

lordwest · 09-15-2001, 05:36 PM

Any body please tell me how to adjust the valves on my honda, I got a whole new cylinder/ top end any suggestions would be greatly appreciated.

Toy 4Runner Man · 09-15-2001, 08:15 PM

CR250? That's a 2-stroke, and to the best of my knowledge, they don't have valves. Unless U R talking about the power valve.

But after all of this, I don't really know any adjustments. Sorry

Kyron · 09-15-2001, 10:51 PM

I kinda hate to say this, but get the factory Honda service manual. It will have every little bit of info on that bike.
They are kinda expensive $50+ but very worth it, as you can do anything with that manual.

Kyron · 09-15-2001, 10:57 PM

BUT ... if I remember right I think you put a little bit of preload on the spring. Because the amount of preload determinds how the "powerband" comes on. It will not hurt the bike if its out of adjustment BUT will damage stuff if left to lose....

I think thats close to a right answer <IMG SRC="smilies/confused.gif" border="0">

09-15-2001, 05:36 PM	#1 (permalink)
lordwest Registered User Join Date: Jun 2001 Member # 5442 Location: Citrus Heights, CA Posts: 364	1989 cr250 exhaust valve adjustment? Any body please tell me how to adjust the valves on my honda, I got a whole new cylinder/ top end any suggestions would be greatly appreciated.

09-15-2001, 08:15 PM	#2 (permalink)
Toy 4Runner Man Registered User Join Date: Jul 2001 Member # 6002 Location: Kelseyville, CA Posts: 1,122	CR250? That's a 2-stroke, and to the best of my knowledge, they don't have valves. Unless U R talking about the power valve. But after all of this, I don't really know any adjustments. Sorry __________________ [URL="http://www.pulsetelecom.biz"]pulsetelecom.biz[/URL]

09-15-2001, 10:51 PM	#3 (permalink)
Kyron Registered User Join Date: Aug 2000 Member # 1418 Location: Not Cal Az Posts: 3,855	I kinda hate to say this, but get the factory Honda service manual. It will have every little bit of info on that bike. They are kinda expensive $50+ but very worth it, as you can do anything with that manual. __________________ Arizona Trail Riders ....... BRRRaaaAAAPPPPPPP

09-15-2001, 10:57 PM	#4 (permalink)
Kyron Registered User Join Date: Aug 2000 Member # 1418 Location: Not Cal Az Posts: 3,855	BUT ... if I remember right I think you put a little bit of preload on the spring. Because the amount of preload determinds how the "powerband" comes on. It will not hurt the bike if its out of adjustment BUT will damage stuff if left to lose.... I think thats close to a right answer <IMG SRC="smilies/confused.gif" border="0"> __________________ Arizona Trail Riders ....... BRRRaaaAAAPPPPPPP

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