hello i have a 87 yamaha phazar that i think is running on one cylinder becuase when i pull the spark plugs out one is wet and one is dry. i tryed cleaning the carbs did not help could it be the coil any help will be greatly appreciated. thanks
ok i checked comperssion and 120 psi in both cylinders and both getting good spark and when i took it for a spin it only went about 45 mph so you know something not right. and when i had the gas all the way down the rpms were about 5000. and after i rod around for a while it backfired and stalled gas was low i put a little more gas in got it started everytime i went to hit the gas it bogged then it went a couple yards and stalled again what does this problem sound like please help going snowmobileing this weekend. also seems to leak oil gas mixture from cylinder gaskets mostly the one side that the plug is dry. could have anything to do with this. thanks
In the carbs there is 2 black plugs and the carb has 3 holes the center hole gets 1 plug and I can not remember if the left or right side gets the other plug. This can cause that condition.
I never thought, the choke adjustment could be out of adjustment. There should be about 2 mils play when you lift the cable up and down on both of the carbs. If the choke puck is to high it will keep letting fuel in which could be why the one plug is wet.
I do not know what you use for plugs, my friends and I use to use NGK BR9EV because we had less problems with plugs. I have seen plugs that have spark not work when installed (some were new BR9HS). The plug cap could be old and sparking to the motor. Start the motor when it's dark and you will see the spark jumping from the cap from the motor, if this is the case. 1 wet side is usually to much fuel or lack of spark. It could also be the plug wire. Swap your plugs and if the same side is still wet it's not your plugs. Check your choke pucks to make sure they are the same ( someone previous my have lost one and replaced it with the wrong one). Make sure your electrical connections are tight. I'll ask my friends for more ideas. I hope this works GOOD LUCK
iam running BR8HS PLUGS but i realized that BR9HS is whats recommed for this phazer so i was going to put two new BR9HS plugs in. should i go with this and i just bought a 99 polaris that does not smoke no were nere what this phazer does i mean it gets worst when i hould the throttle and at this point it struggles just trying to get going. the smoke seems to be a dark color. its been smoking really bad for at least 3 or 4 years.
yamaha phazar problems
