New to the board
Arm chair racerNew to the board
Went riding for only the second time at the dunes yesterday. Rode for a couple hours then all of a sudden it bogs down and dies...So I try and kick it over and it won't even budge! I've had such horrible luck with this bike...Also sucks because I don't have anywhere to work on it right now, and I just got some shifting forks put it in....which we know is a butt load...I think it's cursed!
FOR SALE85 ATC 250r
+6" extended swing arm
+4" axle
FMF Fatty Pipe
DG Silencer
Cool Head
Boyesen Reeds
Keihin Carb
Wiseco Piston
K&N Air Filter
New to the board
Arm chair racerNew to the board
Guys got any ideas on what that is, I assume it's my piston, took the spark plug off and there was some super tiny glisten of aluminum
FOR SALE85 ATC 250r
+6" extended swing arm
+4" axle
FMF Fatty Pipe
DG Silencer
Cool Head
Boyesen Reeds
Keihin Carb
Wiseco Piston
K&N Air Filter
Power User
4 Wheels? Huh?
yup sounds like its locked up....it might free up once it cools but its in need of a rebuild
80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
2012.....Replaced the 350x motor for a 444cc YZ426
WWW.HREATV.COM
Just Too Addicted
Arm chair racerJust too addicted
I would pop the top and check her out. If the main bearings and connecting rod seem to rotate freely and correctly, It must be your piston and rings. Inspect the jug bore for scoring or any real damage. If its seased, I would take it to a reputable machine shop and ask them how many over you should bore it to get it back into check. If its a cast piston, 2 1/2 thousanths .0025 clearence. If its forged, then three thousanths is needed .003. Make sure your main jet is rich, like a 160 to start with the break-in. I wouldn't take my main jet any lower then a 145 with any 250R. Should be fine after that.
Current Bike:
1985 Honda 350X
Bikes owned:
1984 Honda 200X
1982 Honda 250R
1985 Honda 350X x3
1985 Honda 250R x2
1985 Honda 500X
New to the board
Arm chair racerNew to the board
I was running a 170 in it over at the dunes with a 32:1 ratio...is it pretty easy to do? and how much you think it'll be?
FOR SALE85 ATC 250r
+6" extended swing arm
+4" axle
FMF Fatty Pipe
DG Silencer
Cool Head
Boyesen Reeds
Keihin Carb
Wiseco Piston
K&N Air Filter
Just Too Addicted
Arm chair racerJust too addicted
that sucks. i had my r do that to me on my way to some local drags. tore it down and found i had big chunk of piston in the bottom end that was locking it up. And the part of piston in the bottom end busted/ cracked the inner cases letting oil in. hope you have better luck than what i did. good luck.
Can't or Won't?
New to the board
Arm chair racerNew to the board
I pray i have better luck than that lol, i just got it fixed and for the price they charged i could have gotten a rebuild one off of ebay....
FOR SALE85 ATC 250r
+6" extended swing arm
+4" axle
FMF Fatty Pipe
DG Silencer
Cool Head
Boyesen Reeds
Keihin Carb
Wiseco Piston
K&N Air Filter
Just Too Addicted
Arm chair racerJust too addicted
Originally Posted by CodyJay28
Its not hard at all. It takes a little time and know-how. I am sure these guys here on the board will walk you through the whole thing, once or twice. I am rebuilding my topend right now. I have to wait to get the parts and my ported jug back from Yamahondaman. Its real quick with an R because you can do it while the engine sits in the frame.
piston kit $90
topend gasket kit $25
bore job $70
Current Bike:
1985 Honda 350X
Bikes owned:
1984 Honda 200X
1982 Honda 250R
1985 Honda 350X x3
1985 Honda 250R x2
1985 Honda 500X
New to the board
Arm chair racerNew to the board
Sweet, hopefully i can find some time here soon to do it, going to have to find somewhere to work on it...and need a damn job...what'd you have to send your jug in for? and thanks you guys, love this website!
FOR SALE85 ATC 250r
+6" extended swing arm
+4" axle
FMF Fatty Pipe
DG Silencer
Cool Head
Boyesen Reeds
Keihin Carb
Wiseco Piston
K&N Air Filter
Just Too Addicted
Arm chair racerJust too addicted
Naw just call around your local mechanics and atv shops or machine shops. Ask them how much to bore out your atv cylinder. Get it miked first to see what bore its on, before you order the piston kit. Yeah this site rocks.
Current Bike:
1985 Honda 350X
Bikes owned:
1984 Honda 200X
1982 Honda 250R
1985 Honda 350X x3
1985 Honda 250R x2
1985 Honda 500X
New to the board
Arm chair racerNew to the board
well first of all i gotta tear it apart and see if it is for sure my piston and rings lol
FOR SALE85 ATC 250r
+6" extended swing arm
+4" axle
FMF Fatty Pipe
DG Silencer
Cool Head
Boyesen Reeds
Keihin Carb
Wiseco Piston
K&N Air Filter
Registered User
Just too addicted
What part of Oregon are you in? Im in Dry Cities WA and can build that engine blindfolded.
Two things to watch for on that cycle, bad wiring (especially CDI plug) and carb float leaking, both together can torch an engine. Mine has died from a bad CDI plug, and also from the float leaking and flooding the engine. That stock carb is a piece of junk
Check my feedback before buying from me
Catch me if you can
lol awesome!! I love a good ol' 2 stroke for that!! easy as a quadraplegic to bust open!
First Time Rider
Arm chair racerNew to the board
dude what is it with you and leaking floats??? the only problem other that wasting fuel that leaky floats can cause is hyrolock(if you dont know what that is' its when the engine gets a load of liquid being it, gas or water stuck between the piston and head) which can bend or even break the rod.
the problem he has souds to me like an air leak from the way he describes it probably a leak between the clyinder and exhaust pipe connection either that or the intake manifold is cracked and causing a lean condition...the jetting sounds a little fishy as well but you didnt say what year R you have...air or water cooled. were you at full throttle when it happened??? if you need help building your engine drop me a pm...Ive built about a thousand engines......
Current bikes:
85 1/2 Tri-Z (black/red)
84 T3 restored
84 T3 unrestored for gettin'
84 T3 money pit
86 350X 13.5:1 full race
84 250R beater
96 blaster CT sonic 240 kit 38mm airstryker carb 42HP!!
Past bikes:
85 TRI-Z
84 200X
87 200X
86 350X
82 250R
84 250R beater
84 TRI-MOTO 125
83 ATC 110
70 US 90
87BW 200( I know its not a trike but...)
New to the board
Arm chair racerNew to the board
I was probably crusing in mid 4th gear when it happen, its an 85 atc 250r liquid cooled, located in eugene, or if ya can help me out pm me
FOR SALE85 ATC 250r
+6" extended swing arm
+4" axle
FMF Fatty Pipe
DG Silencer
Cool Head
Boyesen Reeds
Keihin Carb
Wiseco Piston
K&N Air Filter
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