please help!!!!!!!!! iv redone my top end and put a new cam in would not start so i put the old cam back in it starts kind of it back fires out of the carb fire balls and the exhaust and runs for 2 secs or so when it does please help thanks

what year engine? what cam did you put in? what was your old cam? did you prime the oil pump and check you were flowing oil? let me know

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"Gee whizz......I never seen one do that before"
ridin since 1978

71 shovel new cam was Andrews AB and my old one Andrews A, no I did not prime the oil pump and how would you do that? No I did not have any oil pressure on my oil gauge Thanks

ahhhh yes short reach plugged engine. my favorites.

i will get to priming the oil pump for ya later.

first - is your battery new and charged? (and do you have a good motorcycle battery....not JUNK)?are the terminals clean and tight? no paint between ground and frame right?

second - so with the new cam it won't fire or run at all. correct?

and with the old cam it will fire ( bang...boom) for a couple seconds and then die. correct?

have you set the timeing accorcing to specs?

do you have solid or hydraulic lifters? what kind of carb?

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"Gee whizz......I never seen one do that before"
ridin since 1978

Good charged battery, the new cam nothing, old cam bang boom, I have a dyna ignition, I have solid lifters, and an SS super E carb

and with the new cam in....the plugs out....rear wheel up.... in fourth gear. now roll the motor over with the rear wheel and observe the pushrods going up and down. just leave the upper clips off and you can watch them.check to be sure they are not jumping or bent.

i don't remember exactly what.... but the cams forlate modelshovels(something about a dot on the end of them)are odd and possibly you have wrong year cam???

is this electric start????? single fire dyna????

you are checking the flywheel mark with front piston TDCand the front lifter at lowest position when timing right??

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"Gee whizz......I never seen one do that before"
ridin since 1978

its kick only singl fire and i got my old cam in right now i did not know you needed to set the timing with a dyna ignition i thougt that was for just points i dont know how to set it then

does your dyna have the weights?

you set your timing mark in the window checking to be sure front piston is tdc and front pushrod spins. then depending on which dyna ignition you have http://www.dynaonline.com/english/guides.htmset timing accorcingly. ussualy you leave a wire off the coil and rotate till light comes on in the advanced position. just follow the directions exactly as dyna has them and you will be all set. be sure the insulation over the wires coming out of the cone is in good condition. also that you don't have a wire tie pinching them anywhere. they are very fragile wires and don't like sharp bends. just a heads up on that.

that super e with your kisker should be no problems. i still think you need to roll the engine over and be sure the lifters aren't bent.IMHO

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"Gee whizz......I never seen one do that before"
ridin since 1978

thank you sooooooooooooo much it fired right up thanks alot

hahaha glad to help. this being the first day ive been a member here. just send me a PM anytime if you get in a jam.

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"Gee whizz......I never seen one do that before"
ridin since 1978