Planet Minis

85atc70 · 06-03-2009, 10:03 PM

So im not new to 70s but i havent had one in a few years. Just got 2 locally for only $300 and they were both 99% complete. Each had a couple missing parts but no biggie. One (the 82) is complete and we got it running but it runs horrible. It will start up, smoke horribly (white smoke) and if i hit the gas itll just bog down. But it will idle forever, it sounds horrible though. The 84/85 is missing a coil and has flat tires. Both have horribly rusted tanks. But i ordered carb rebuild kits and have those 45 degree incline filters but i wanna get em running good before.
All jets are super clean and spotless.
Any ideas?
Floats are measured correctly and points and valves are correct.....
Thanks

85atc70 · 06-03-2009, 10:37 PM

anyone??

Gotlabs · 06-05-2009, 10:38 AM

Make sure all the carb orifices are clean. Swap the carbs out, adjust the valves, put the coil on the other bike an try it.

85atc70 · 06-05-2009, 10:45 AM

i checked all the orifices. clean. any other ideas?

tmas · 06-05-2009, 03:45 PM

Quote:

Originally Posted by 85atc70

. Both have horribly rusted tanks.

I would fix the rusty tank problem first or the rust will get into your carb and plug everything up.
tmas

85atc70 · 06-05-2009, 10:52 PM

but it doesnt. maybe the rusted gas makes it run bad but it shouldnt bog down. thats a carb problem...

edmonster · 06-08-2009, 12:44 PM

i would get a plastic tank or some fuel filters first.

gfleck067 · 06-08-2009, 01:10 PM

if the gas as been sittin it will make anything run like crap if you drain the fuel and the inside of the tank is rusted get a new tank if you refill it with new gas it will do the same thing
with the ****ty gas it may run but it most likely will bog down when there is more gas going into the motor
the white smoke could be that the rings are starting to go out and it is burning some oil with the gas or a valve is out of wack

BRAP!! · 07-07-2009, 07:51 PM

make sure to change your points. those are prone to go bad in them older bikes. i did it to mine and it actually ran haha

Race Demon · 07-08-2009, 08:18 PM

points, condencer, and fresh gas, for a smoker I would put a little Lucas oil treatment in with the crank case oil [25% to 50 %] those little motors are tuff , the Lucas seems to loosen up the rings after it in there a while

crucescrawler · 08-03-2009, 05:26 PM

Gas of course, but check your intake gaskets for vacuum leaks. if air is getting in before the air/fuel mix you are gonna have problems. Do a compression test too. Rings are probably done if its burning oil. Adjust valves too as said above.

06-03-2009, 10:03 PM	#1 (permalink)
85atc70 2nd Gear Member Join Date: Jun 2008 Location: Tucson, AZ Posts: 482	2 new 70s So im not new to 70s but i havent had one in a few years. Just got 2 locally for only $300 and they were both 99% complete. Each had a couple missing parts but no biggie. One (the 82) is complete and we got it running but it runs horrible. It will start up, smoke horribly (white smoke) and if i hit the gas itll just bog down. But it will idle forever, it sounds horrible though. The 84/85 is missing a coil and has flat tires. Both have horribly rusted tanks. But i ordered carb rebuild kits and have those 45 degree incline filters but i wanna get em running good before. All jets are super clean and spotless. Any ideas? Floats are measured correctly and points and valves are correct..... Thanks

06-03-2009, 10:37 PM	#2 (permalink)
85atc70 2nd Gear Member Join Date: Jun 2008 Location: Tucson, AZ Posts: 482	Re: 2 new 70s anyone??

06-05-2009, 10:38 AM	#3 (permalink)
Gotlabs PM Newbie Join Date: Nov 2008 Location: Fred burg, VA Posts: 55	Re: 2 new 70s Make sure all the carb orifices are clean. Swap the carbs out, adjust the valves, put the coil on the other bike an try it.

06-05-2009, 10:45 AM	#4 (permalink)
85atc70 2nd Gear Member Join Date: Jun 2008 Location: Tucson, AZ Posts: 482	Re: 2 new 70s i checked all the orifices. clean. any other ideas?

06-05-2009, 10:52 PM	#6 (permalink)
85atc70 2nd Gear Member Join Date: Jun 2008 Location: Tucson, AZ Posts: 482	Re: 2 new 70s but it doesnt. maybe the rusted gas makes it run bad but it shouldnt bog down. thats a carb problem...

06-08-2009, 12:44 PM	#7 (permalink)
edmonster 2nd Gear Member Join Date: May 2008 Location: Ely, Minnesota Posts: 312	Re: 2 new 70s i would get a plastic tank or some fuel filters first.

06-08-2009, 01:10 PM	#8 (permalink)
gfleck067 2nd Gear Member Join Date: Mar 2009 Location: new lenox IL Posts: 308	Re: 2 new 70s if the gas as been sittin it will make anything run like crap if you drain the fuel and the inside of the tank is rusted get a new tank if you refill it with new gas it will do the same thing with the ****ty gas it may run but it most likely will bog down when there is more gas going into the motor the white smoke could be that the rings are starting to go out and it is burning some oil with the gas or a valve is out of wack

07-07-2009, 07:51 PM	#9 (permalink)
BRAP!! PM Newbie Join Date: Sep 2008 Location: Orlando, FL Posts: 46 My Mood:	Re: 2 new 70s make sure to change your points. those are prone to go bad in them older bikes. i did it to mine and it actually ran haha

07-08-2009, 08:18 PM	#10 (permalink)
Race Demon PM Newbie Join Date: Jul 2009 Posts: 9 My Mood:	Re: 2 new 70s points, condencer, and fresh gas, for a smoker I would put a little Lucas oil treatment in with the crank case oil [25% to 50 %] those little motors are tuff , the Lucas seems to loosen up the rings after it in there a while

08-03-2009, 05:26 PM	#11 (permalink)
crucescrawler PM Newbie Join Date: Jul 2009 Location: NEW MEXICO Posts: 11	Re: 2 new 70s Gas of course, but check your intake gaskets for vacuum leaks. if air is getting in before the air/fuel mix you are gonna have problems. Do a compression test too. Rings are probably done if its burning oil. Adjust valves too as said above.

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