Broken sparkplug

[Fastassbanshee96]

I broke a sparkplug off in my coolhead. All the threads are still in the dome. I figured the best way to get it out would be take the head off and try to screw it all the way thru. Does anyone know of a better way of doing this without screwing up my dome or head. Any info would be great.

[Fastassbanshee96]

Thanks. That's what figured I would have to do. Befor it happened my left cylinder wasn't firing... If the plug was broke when I was trying to start it, would that sparkplug still fire or not.

[AKheathen]

did you use champion or autolite or something?

[Fastassbanshee96]

I think they were nkg or something like that. I got the rest of the plug out and tried to put a new one in but the top threads were wasted on the dome. I took it to Yamaha to talk to there techs and they said I couldn't fix it cause every time they started the tap it would go side ways. I don't thing they knew what they were doing.... I ended up getting a plug chaser with alittle bet steeper pitch on the thread and ran it in thru the bottum of the dome and got plugs to match. Now it runs like a rapped ape.

[AKheathen]

well, yah, if the top threads are messed, then you start by chasing it through the bottom, lol. they should have known that. if there is not enough meat, then tyou can buy a sparkplug thread repair kit made just for that. i had to do it on an s-10 2200 that i bought where someone tried to remove hot plugs and galled the threads.

[Fastassbanshee96]

Yeah I don't think they were too bright. Lol. I think the guys at the store who sold me the tool said that it had a steeper pitch on the thread. The new plugs seem to be holding great.

[jbooker82]

Or a new set of cool head domes are like 60 buck. Probably the cheapest way to go if you have to buy the tools to fix it.

 

On a side note dont use an 1" drive impact to put the plugs in.

[Fastassbanshee96]

Or a new set of cool head domes are like 60 buck. Probably the cheapest way to go if you have to buy the tools to fix it.

 

On a side note dont use an 1" drive impact to put the plugs in.

 

I already got it fixed... The tool was only like 7 bucks so I would say it's definetly the cheaper rought. And of corse I'm not using an impact. I actually spun it in by hand but for some reason when I was pulling it out (cause the left side wasn't firing) as soon as I put the wrench on it, it just snaped the threads off in the dome. But it's all good now.

[troyzstang]

Or a new set of cool head domes are like 60 buck. Probably the cheapest way to go if you have to buy the tools to fix it.

 

On a side note dont use an 1" drive impact to put the plugs in.

 

I usually use a torque wrench and a 4ft section of pipe to really get them tight

 

LOL

[AKheathen]

i usemy teeth

[dmfisher71]

I usually use a torque wrench and a 4ft section of pipe to really get them tight

 

LOL

 

 

thats a little overkill, you will eventually pull the threads out if you do that, they just need a tightening with a 3/8" ratchet snug it up and just a little more..

[WINDYCITYJOHN400]

I already got it fixed... The tool was only like 7 bucks so I would say it's definetly the cheaper rought. And of corse I'm not using an impact. I actually spun it in by hand but for some reason when I was pulling it out (cause the left side wasn't firing) as soon as I put the wrench on it, it just snaped the threads off in the dome. But it's all good now.

 

 

Righty, Tighty...Lefty, Loosey. Lay off the Monster Energy Drinks.

I like the ratcheting 13/16 box end wrenches. Hand tight + 1/4 turn.

[AKheathen]

you know, i always see a bunch of "i like to....." and never just do it by following std. plug install directions.....get used to doing that, and then you just do it by feel with a combo wrench.....