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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
Pinging issue
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[QUOTE="1998RM250, post: 1402867, member: 99032"] Hey guys since I finally paid to have my bike setup to run right, $100 to jet it the bike has been pinging now mostly when I'm on the pipe. Had the best guy around the area jet it, and its now running a 160 main, 45 Pilot and a N8RH needle in the middle clip position. I run Hess 93 octane with yamalube 2R @ 32:1, and I took a good listen to it today. It really sounds like some bb's rattling around inside the cyl head every once and awhile when I'm really on the pipe. I'm on the throttle alot, and ride mostly sugar sand. My mods are performance engineering ported head, wiseco piston, Vforce reeds, FMF fatty & silencer (new packing),and twin air filter. Today I tried turning the airscrew in a bit, it just made it noticably more sluggish and still was pinging. I am going to try raising the clip a notch to drop the needle and see how it works out, right now the bike runs very clean with little to no spooge or smoke when warmed up. I'd hate to run race fuel in it, as it's very hard to get in this area and is at least a 1/2 hr drive. Also I've spent hours online doing jetting research, and I heard the late model RM's are really hard to jet & have alot of compression. What do you guys think? I'd hate to blow up my brand new top end, oh and I also checked the crank bearings etc while it was apart for play & it was fine. :bang: [/QUOTE]
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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
Pinging issue
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