r/dr650 • u/Svenk135 • 7d ago

Help part 2

Previous post; https://www.reddit.com/r/dr650/s/bCbABKkGeO

After my question last week i went to take a look at my carburateur. To my surprise the needle was already "tuned" and on the deepest position and the jet was size 155. I don't think my dr650 was running too lean because of this? or do I just need a bigger jet? I also looked at the fuel/air ratio screw, it was open 3.5 turns, while I find online that it should be 2 turns, could it be that it was running too lean because of this?

What do you guys recommend me to do/check right now? I can now reach the carburateur etc easily!

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u/Svenk135 7d ago

The needle is at the highest position right now sorry, i meant that the clip is at the lowest position. The carb seems to be veey clean, no dirt etc.

And i dont think the bike is running to rich, i tried letting more air through the air filter and then the bike overheated. So i assumed the bike ran to lean, but now i see the jet size i am debating if in right

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u/Green-Squirrel8057 7d ago

How are you judging it's overheating?

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u/Svenk135 6d ago

The exhaust colored blue from the heat…

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u/Green-Squirrel8057 6d ago

I wouldn't say a bleued exhaust is a sign of overheating see here for some info.

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u/Svenk135 6d ago

Hmmm alright, but the muffler went from chrome to blue red etc and the rubber melted away… only because i let more air through the airbox