70s? Road Runner - may be a K&S mb-90

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Hey all,

I came by a minibike my grandpa used to have in his garage and I grabbed it up before the estate sale. Well I have been hauling it around for 5 years and haven't gotten around to do much to it so it is time to part with it.

It looks like the mb-90 model here in the picture but it says "roadrunner" on the front. Only reason I found this out is because one of your threads(https://oldminibikes.com/forum/index.php?threads/its-a-road-runner-but-what-model.80419/ ) thanks!
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Original parts except for the throttle, gas tank and exhaust. Tecumseh engine runs strong and surprised the hell out of me the first time I rode it! But I am sure it could use some tuning. Needs a twist throttle and maybe a better gas tank solution ( but it works...), and I recently replaced the belt. Both tires are old - but they will hold air for a few hours.

Here she is!
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Bike is in Plano Texas. I am asking $350 or Best offer. Let me know if you have questions.
 
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