billsmarz
New Member
Been having some rough running lately (misfire on engine braking, no power, bad mileage). This happens after someone tried to steal it and it sat before I could get it back up with a new ignition…. Sorry this is another problem.
I was changing the spark plugs to the iridium. I get all the old plugs out no problem. Figured at 21k, it was time. I went in from the top instead of taking off the radiator. I figured I’d at least need to test the coils so they’ll be out anyway.
It was the last new plug I was putting in, four, on the far right. I threaded it in by hand with the extension and rubber socket. snugged up. Noodled the ratchet on and tightened. After a small tighten it started getting loose. I panicked and assumed I was actually cross threaded it.
I pulled it out and inspected. There didn’t seem to be any issue, but I was looking at the first few threads for damage, so I started to delicately reinstall. I assumed it was damage on the head threads so I wanted to see how bad.
It went right in, hand snug, then began to torque, and boom no resistance. Pulled the plug out and the ceramic and electrode came out leading the threads in the head!
I have theories for cause, most include some user error (cranking the thing in the hole, over tightening, etc) but I’m going to blame a faulty plug and focus finding a way to get compression.
I’ve read some people do this with an Easy Out. Leaving metal shreds in the cylinder is certainly a concern this route. It’s also probably impossible to get straight in too, tucked under the frame. This gets me to the actual question; Anyone think it’s worth leaving the engine in and giving it a go? Will the head come off without dropping the engine?
Backstory if you care:
This was me beginning to troubleshoot fuel and ignition issues. I assumed since it started and idled without problems it was either too much/little fuel or bad spark. The bike has 21k on it. I figured the fuel filter should be changed and plugs. Since I was in there l, I figured I’d order some coils just in case to have them to test. Still need to test, was putting plugs in during issue.