Uploaded October 2020 | Updated September 2026, 2 weeks ago

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Question 1: 01’ Suzuki DRZ400S Low Idle
Answer: Make sure the carb is clean (pilot and fuel screw circuit) Adjust idle to 1800-2200 RPM. Tune fuel screw. Reinstall stock stator, maybe aftermarket parts are the culprit. Make sure the timing / pulse generator is installed correctly.

Question 2: 96’ BMW R1100GS - Hesitation at low RPM/cruise
Answer: Not totally sure since we are both unfamiliar with BMW’s, however you are on to something with the O2 sensor test.

Question 3: 79’ Honda CB750K - No fuel to carbs 3 & 4
Answer: Slowly remove bowls on 3 & 4 as Cody suggested and see if fuel is getting to the float needle. Probably going to have to take carbs apart and see what is causing fuel delivery issues.

Question 4: 18’ Yamaha R3 - Low oil?
Answer: Add oil to see how low it really was. Compare to service manual spec of total capacity.
If it truly had no oil, damage is done. Don’t send oil out for analysis.

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