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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
RM 250 fouls up spark plugs-need advice
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[QUOTE="Rm250sRalRight, post: 763757, member: 52712"] Here's an update at my fouling problems: Took the bike to the track today and it didn't foul a plug, in fact it run great. The problem, as it seems was with the floats inside the carb. Someone here had suggested this to be the problem and I gave it a shot. However I was unable to properly adjust it. A friend did it for me and I took the bike to the track today. It run strong and well, never did foul the plug and it wasn't covered in dark liquid like before. It had some minor amounts of wetness but not much (running motul 800 at 50:1). So it seems that my problem with annoying fouling has been solved. I urge you to have your floats adjusted before spending any money with some mechanic that will charge you a small fortune trying to diagnose the problem. I tried to set mine to 16 mm, which seems the norm for many carbs - but could not figure out the proper way to do this and even though I thought I had it right, it wasn't. So be sure to first try the float inside the carb. Get someone to do it if you must. To save money, bring your carb to a shop and have the mechanic adjust the floats ONLY - do not let them do any other work on it as it could be mean a waste of money. I am really pleased to have my bike back without having to go through a seal replacement, which was looking to be what I needed. I will be taking the bike to track again tomorrow and my fingers crossed that the plug will hold up. Should this (the floats) be the problem I would hope that the message gets out that this is something most people having issues with fouling would be aware of. As is this seems to be a 'hidden' problem and few seem to know the answer. It is thanks to this forum that I got the bottom of this. This place rocks. Thanks all of you who took the time to share your experiences with us. You got me on the track again, and back on track :) [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
RM 250 fouls up spark plugs-need advice
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