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By DaveswMN
Pulled my '86 Moto4 out of shed where it sat for 20 years. I knew it smoked. checked it over a little put in gas and it fired right up!!
Drove about 100 yards, ran about half throttle wouldn't idle. Put on somenew parts, jug/piston and rings, carb and valve seals.
'went together ok, tuned it over by hand about 6 revs whick went well. Hit the starter it fired for about 6 revs and quit. tried it again fired once and then th sound of something slipping like maybe chain slipping over spoket.
Took cover off to watch cam sproket, hit starter again, heard same noise and the cam sproket was not turning but jumping a bit. Chain was still tight. You will probably tell me I need to split the lower case but hoping there mightbe something else.
I don't fully understand the chain tightener, the plunger only moves about 1/4 inch, should it move much more than that when off the motor and compressing it by hand?
Thanks for any thoughts.
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By Kawiherder
It starts and runs Ok but after a while the temp gage lights up and the fan fails to start. Any suggestions on where to start looking would be helpful. Thanks
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By 86ccord
Just picked up a 2008 Big Bear 250. It was sitting for about 1 year it's definitely a project. Currently chasing down a no spark issue. Imagine that lol
Tons of info around the forum. I look forward to learning!
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By tjakes680
So I recently cleaned my carb on my 1986 Quadrunner 230GE and had to replace my fuel pump and now it seems im getting to much air and I can not use carb to adjust it I believe its coming in from either my air box or one of the air ducts or possibly the clear air container that is under front of quad that runs into the air filter bag but im not sure. Has anyone have any experience with this happening quad will idle super high and nothing can lower it except blocking off a air duct that leads to main air box i also have to check again for any cracks or leaks in air lines and box and ducts any advice will help im stumped ! What else can cause to much air coming in ? Could it be a leak from engine or top end ?
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By kickstartbuddy
I was thinking its bad gas but it wont run for longer period even using starting fluid, so I'm thinking fuel starved. Injector? I heard the fuel filter is built into the fuel pump, which sounds like a terrible idea. I have read a few reviews saying its a common symptom of a plugged injector. I have my air intake box off and beneath it is the injector I think. But what do I need to remove to get to it? I dont want to just start pulling stuff off the top of the motor.
Couldnt locate a you tube vid that actually shows an injector removal.
Any help out there.
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