spark plugs

Hello, I recently inherited a 1977 XS650D from a friend who passed away. It did not run when I took it out of his barn. Brought it home. Cleaned it up. Cleaned the gas tank out. Put in fresh fuel. Changed the oil. Changed the spark plugs. Attempted to get the brakes working but found the...

Hi everyone, I just bought a '77 XS650 in the fall. I'm not getting fuel to one of the plugs and can't seem to figure out why. I've cleaned the carb and changed the fuel lines. Any suggestions would be greatly appreciated. I'm new to working on bikes and don't have much knowledge.

Good day All, I know what you're thinking- "oh geez, another I fouled spark plug story that could have been easily remedied by using the 'search' button". Please, I ask for your mercy as I explain myself :) I have searched and favorite'ed and re-read and seem to be stuck. But I have a feeling...

Hey guys, I'm new to this forum, and honestly to motorcycle maintenance in general. I recently bought a 79 xs650s, and I couldn't be happier except that it won't start currently. I know it started kind of recently and the owner before me said it had a slight oil leak. I checked the spark plugs...

Hey guys. Dumb question but i just bought some NGK iridiums (BPR-7EIX) i see i need to replace caps and wires. What resistance wires and caps should i get? Stock ignition and charging system. '79 xs650 special II. Thanks guys! Garrett

Hi all, Still new to wrenching on my bike. I pulled my sparkplugs and they are pretty black. From reading the manual it looks like I need to run a "hotter" sparkplug, but I dont know that means. Anyways here are some pics of my sparkplug, hopefully you all can tell me whats going on. The...

Hey guys, I recently went to purchase some "performance" spark plugs. Mike's XS advertises some here: https://www.mikesxs.net/product/50-5944.html but wants $12.95 for ONE! PLUS S&H. DESCRIPTION: "While Dyno testing a problem bike (a TX750) it was discovered that customer supplied Iridium...

So...these plugs have very little time on them...no riding, just start/idle for no more than 5 minutes at a time. The bike starts well with full choke...after about 20 seconds, go to half choke...after about 20 seconds...no choke...couple throttle pulls, then she'll sit there on idle fine...

Greetings, gentlemen! This site has proven incredibly useful thus far, but at this point I feel I must reach out for help. I bought an '83 heritage special. She was running good (albeit just a tad rich) but then a few weeks later, she started sputtering and generally sounded not very happy...

Yes.....fml....... over-torqued my brand-new Iridium spark plug. :banghead: Left the bolt portion in my cylinder. Now trying to figure out how to get it out? No access to welding tools, blow torches or dynamite. I don't think I have an easy-out and the auto store is 3 miles away. My bike is my...

went to start the bike yesterday and it just wouldn't, no fire, so i start tracing the electrical side of it, everything was fine. turns out the spark plugs just wouldn't spark any more. grabbed some crusty old ones out of a parts bike, and it fired right up... i think i'm going to keep a...

I've been searching high and low on the internet for an equivalent to the NKG BP7ES, but can't seem to come up with any definitive, "use this spark plug" answers. What plugs have you guys used with success that can be picked up at the local auto parts store? Need to start the bike today and...

Just wondering if any of you have tried the NGK Iridiun Spark Plugs? I put a set in mine this week and I got to say I am pleased with them so far. Bike sounds crisper and they claim there is a 2 HP gain(which I believe may be streching the truth a bit). Just curious if anyone else has a...

or NGK Plug thread pitch is 1.25 -a yamaman reminder