Black Plugs / what now ?

THEFERMANATOR · #1 09-21-2010, 11:10 PM

Does it smoke blue at idle? If so you may have an air leak going to your VRO pump which will make it dump oil in. I persoanally pre-mix all of mine just so I don't have to worry about problems with the VRO and dealwith some smoke at idle. Also have the link and sync checked and make sure its right, and that all of the air bleeds in the carbs are cleaned and in the right places.

wildtalk · #2 09-21-2010, 11:27 PM

Yes its a smoker at idle. thanks for the info

wildtalk · #3 09-23-2010, 12:54 PM

After comments and some more research .. I came some research that states synthetic oil would help and burn better. Any Commenst on whats the best oil for use with my johnson 150 fast strike 1987 ? Also read thet spark plug gap set to 25 or 27,, is betther then recomended setting of 30 ? Looking forward to more comments. Im almost considering just mixing gas myslef if I cant find a solution . Last it was serviced was less then a moth ago VRO was click every 6 - 7 seconds. Is there a way to set the VRO ? or is it preset and un-adjustable ?

THEFERMANATOR · #4 09-23-2010, 09:08 PM

The VRO is not adjusteable on these engines. I reccomend the PENNSOIL synthetic blend for any of the old school carbed 2 strokes. Its priced right, available in many places, and burns relatively clean. As for how much oil it is injecting, have you checked how much oil to how much fuel you are using? If the VRO is working, it shouldn't smoke much at all at idle. Sounds like you have an air leak in the fuel line going to the engine from your description of the smoking. Remember that ifyou are running it hard, it should use roughly one gallon of oil to 50 gallons of fuel. And if you are running it at idle to slow trolling it should be closer to one gallon of oil to 90-100 gallons of gas.

wildtalk · #5 09-24-2010, 01:50 PM

Thanks for the info Thefermanator . I did a complete check of the gas lines yesterday .. and MAY have found a slight leak. To be safe I replaced that area of line. I was also told I could switch to a L78V { chanpion } spark plug . Its the kind that just has a dot in the middle no gap setting on this type. Anyone ever use this type plug ?

THEFERMANATOR · #6 09-24-2010, 01:56 PM

Quote:

Originally Posted by wildtalk

Thanks for the info Thefermanator . I did a complete check of the gas lines yesterday .. and MAY have found a slight leak. To be safe I replaced that area of line. I was also told I could switch to a L78V { chanpion } spark plug . Its the kind that just has a dot in the middle no gap setting on this type. Anyone ever use this type plug ?

Stay with the QL77JC4 plugs, TRUST ME. The QL78V plugs use a longer reach electrode for prolonged high RPM useage and will foul even easier at idle.

KEEPINGITREEL · #7 09-24-2010, 07:43 PM

Hey Wildtalk, F a Champion plug. ASE certified tech(come on guys you know you should spout it)with minimal ex with O/B. F a champion! Everytime I put one in, not so much. Still have to kneel to the pros! I may know stuff elsewhere, but this is where to find the right info.