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    7up's Avatar
    7up Posts: 180, Reputation: 1
    Junior Member
    		  
    #1

    Mar 8, 2016, 04:44 PM
    Pull start problems
    I have a predator 212cc engine, the problem is when I go to start the engine the pull start is so hard to pull out that it lifts the back end of the mini bike. So what would it to be so hard to pull start? also I just took out the sparkplug to see if any fuel was in there it was clean and dry and cord pulled with no problem but when put my finger over the hole the cord was hard to pull. so could it be the timing is off and the valves are not opening at the right time.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Mar 8, 2016, 06:29 PM
    Why did you post this again? There were a couple of answers the first time.
    7up's Avatar
    7up Posts: 180, Reputation: 1
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    #3

    Mar 8, 2016, 06:50 PM
    Quote Originally Posted by ma0641 View Post
    Why did you post this again? There were a couple of answers the first time.
    The first one was wrong
    7up's Avatar
    7up Posts: 180, Reputation: 1
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    #4

    Mar 8, 2016, 07:00 PM
    Quote Originally Posted by ma0641 View Post
    Why did you post this again? There were a couple of answers the first time.
    Why are u looking at this question your in plumbing
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #5

    Mar 8, 2016, 07:18 PM
    Because some of us are plumbing experts does not mean we do not know about gas engines. Was you bike ever laying on its side, flat on the floor? Do you know how to check the flywheel like Crigby suggested?
    7up's Avatar
    7up Posts: 180, Reputation: 1
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    #6

    Mar 8, 2016, 09:00 PM
    Quote Originally Posted by ballengerb1 View Post
    Because some of us are plumbing experts does not mean we do not know about gas engines. Was you bike ever laying on its side, flat on the floor? Do you know how to check the flywheel like Crigby suggested?
    It has crashed a few times on its side,yes I have checked the flywheel and replaced the key. Now does the magnet on the flywheel need to always stop under the ign coil?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #7

    Mar 9, 2016, 01:03 PM
    Quote Originally Posted by 7up View Post
    Why are u looking at this question your in plumbing
    HMM. Lets see, BS chemistry, I guess that eliminated the fact that I have built numerous car engines, drag raced and raced sports cars, repaired aircraft in the Army, built 2 houses, wiring both, plumbed both, installed all bath and kitchen cabinets and killed a nice 80# doe this year with a .243. Well, in 75 years you learn to do a lot of things.
    smoothy's Avatar
    smoothy Posts: 25,492, Reputation: 2853
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    #8

    Mar 9, 2016, 01:31 PM
    Quote Originally Posted by ma0641 View Post
    HMM. Lets see, BS chemistry, I guess that eliminated the fact that I have built numerous car engines, drag raced and raced sports cars, repaired aircraft in the Army, built 2 houses, wiring both, plumbed both, installed all bath and kitchen cabinets and killed a nice 80# doe this year with a .243. Well, in 75 years you learn to do a lot of things.
    And My Electronic engineering degree must disqualify me from commenting as well despite my mechanical experience dwarfing many younger mechanics...

    And to the one question... it rotates... as long as it remains properly indexed to the crank.. it doesn't matter where it stops.

    That woodruf key is soft material for a reason. It serves the same purpose of a fuse or breaker in an electrical circuit. Preventing far more severe damage in certain circumstances...and why it should be checked.
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