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View Full Version : 250sx help plzzz



segers200s
02-07-2012, 12:39 PM
ok so I bought a 250sx and it starts rite up n runs everything works but sounds like its knocking in topped any suggestions on what it could be thanx alot

dustrunner
02-07-2012, 05:31 PM
it may be the valves. get a book and it will tell you how 2 do it ...or the timing chain is loose .... but the book will help with whatever it is yhats wrong.. good luck.

segers200s
02-07-2012, 07:49 PM
where would I get a book at thanx

dustrunner
02-07-2012, 09:40 PM
your honda shop may still be able to get 1 but check e bay...

DRG RCN
02-07-2012, 10:53 PM
E BAY. Thats where i got mine. Try and find a offical honda manuel..much better than others

Jason125m
02-07-2012, 10:54 PM
Service Manual

segers200s
02-07-2012, 10:57 PM
Ok thanx I tried to download the service manual but wont let me look at it so I try eBay for the book thanx

philgipson
02-08-2012, 12:00 AM
that motor is prone to cam failure from not oiling.mine did it and cost me a cam and a head. www.oscarmayer.net/atc/manuals/ try this site for a manual.

segers200s
02-08-2012, 07:34 AM
great so Prolly not a cheap fix have to dig in to it n see why cant it be like my other trikes everything on the sx it weird I had to clean carb n idk why they come up with something like that and oil line running to top end they just couldn't leave it simple well thanx for the info have to dig in to it n see what the problem is

segers200s
02-08-2012, 07:49 PM
well I pulled the little valve cover off n it looks like the top end is dry pulled the oil line off n no oil was pumping through

STiForester
02-09-2012, 09:35 AM
I have a complete head with cam gear and all of it for sale if you need it.

http://72.52.143.80/~trikes/atc250sx_85-87_servicemanual.pdf

segers200s
02-09-2012, 12:46 PM
how much
shipped to 45373

segers200s
02-09-2012, 12:57 PM
do u have to pull motor to change them out ? thanx

Jason125m
02-09-2012, 03:38 PM
To view a PDF document. You need to download " Adobe Reader "

JJMF1979
02-09-2012, 03:40 PM
where would I get a book at thanx
Download a service manual off of this site get it right away and it is free

segers200s
02-09-2012, 09:35 PM
ive downloaded it but only have internet on phone n it wont let ne look at it idk why not but I ordered book on eBay thanx

STiForester
02-10-2012, 01:04 AM
Parts sold to you. Good luck with everything. And yes you have to put cam gear in and you need to look down and make sure everything is where it needs to be. You won't have enough room while in the frame.

segers200s
02-10-2012, 01:47 AM
ok im gonna pull motor out tomorrow n get it up on work bench n order a gasket set then go from there get this baby running good be riding it at trike fest

STiForester
02-10-2012, 11:13 AM
Hell yea! Sounds like a Plan. Cam and cam gear was in very nice shape also. I have it packed in foam cutouts. Hardware is there also. TORQUE TO SPEC