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Here is what I have collected over the years and maybe it will help someone else.
There are so many and several are too large to upload as attachments, so see any thing you need just shoot me a PM and your email and I will get them on the way to you as fast as I can.
50cc to150cc Service Manual For Tank Motorsports.pdf
1986 CH250 ELITE SERVICE MANUAL.pdf
Charging and ignition systems for atvs.pdf
Chinese ATV Frame Diagram.jpg
Chinese ATV Repair Shop Manual - Clutch Diagram - Exploded Views.jpg
Chinese ATV Repair Shop Manual - Cylinder Head Diagrams.jpg
Chinese ATV Repair Shop Manual - Torque Specifications.jpg
Chinese ATV Repair Shop Manual - Valve Clearances.jpg
Eagle ATV Fender Body Parts Exploded Diagram.jpg
Eagle ATV Rear Axle - Exploded Diagram.jpg
Piston Ring Installation 4 Stroke Engines.jpg
Trouble Shooter Guide for BATTERY DRAINED Chinese Engines.txt
Trouble Shooter Guide for NO-COMPRESSION.txt
Trouble Shooting No Crank.txt
50 to 150cc GY6 Shop Manual.pdf
Arrow 150 Engine Service Manual.pdf
Eton Shop Manual YXT-150.pdf
GY6 Shop Manual.pdf
Yerf Dog Spiderbox GX150 Service Manual.pdf
Recently, I changed the timing chain. I lined up all timing marks and set valve lash at TDC. The mark on flywheel was on point as well when I looked through sight hole. I started the engine and starter turned it over then it hit and stuck. I did it one more time and the same thing happened. I took everything off and saw no damage. I tried to turn it over by hand and same thing. It turns halfway or so and hits. I loosened valve lash and took crank gear off and it does the same thing. It will turn over clockwise fully but not CCW. It seems like the crank sub assembly weight is hitting the gear balancer weight. I can turn crankshaft CCW while turning the gear balancer CW and get it to go but feel it hitting something. I also can spin crankshaft CCW without crank gear on and force the engine to break past the stick. It’s not the piston.
Please give me some suggestions thanks
Just bought (Tue. evening) an '89 Suzuki 250 4wd that has been sitting out the last 5 yrs. It's complete, including the shift knobs, battery cover, and headlights. It has the optional cooling fan on it (probly stuck - didn't check), and the engine isn't locked up. Plastic looks good and isnt cracked. Racks aren't bent up. Shift lever works, the foot brake moves (needs oil - have to pull it up by hand), and there's black oil and no water in the engine sight glass. Guy was asking $125 and gladly took $100 for it. Anxious to get started on bringing it back to life. Been wanting one of these for years. As soon as I can get to it (working on a junky "Jackel" right now - Chinese Yamaha Timberwolf). I'm going to pull the tank off it and clean it, clean & possibly rebuild carb, put in new plug, and a battery, then see what happens. If nothing, will keep going until it runs. Feel free to respond if you want to, I'm mainly just excited and wanted to tell somebody.
picked up this pos bike for $80 not running. took it home, cleaned the carb and bypassed the fuse- ran great (other than the rev limiter- those things are so stupid) Then one day out of the blue it starts flooding on cold startup and wont idle cold, but idles to fast warm. (too fast being about half throttle speed heh). I tried a new carb ($10) and new sp. new carb wouldnt make it run except on choke and then it was gushing white smoke. I had better things to do with my time so I parked it in a shed and used it for a work bench for a while... this last weekend, I wanted to take it along with the sportman to a mens retreat to let the younger boys have some fun on it-- took about 30mins to pull all the crap I had accumulated on it and then rolled it down to my workshop, put the old carb back on after adjusting the needle clip up two notches (leaner) and threw it back on the bike. Will turn over, but no fire. I didnt have time to check sp that day but just wanted some incite on what could be wrong with this quad (if it even qualifies as being called that)
By Wolds Alpacas
Hello all. I have just stripped down the carb on my YFM225 as it is not running right.
I put it in the ultrasonic cleaner for half an hour and it has done a good job.
Nice clean jets but when I go full throttle it backfires, and there is a lack of power.
It also does not seem to take fuel in properly - it comes out the petcock ok so it is running freely enough, but it is not drawing into the carb.
If anyone has any ideas I would be very grateful.
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