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Strange motor behavior at high speed
- Micha
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Strange motor behavior at high speed
A vape 12 v alternator & ignition system in installed.
Any ideas?
R51/3 1952
Engine Nr. 529466
- therealkennyboy
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Re: Strange motor behavior at high speed
Good luck.
Scottsdale, AZ, USA
1960 R60 (currently), 1974 R75/6 (past), 1981 R100CS (currently), 1984 R100RS (past), 1989 K100RS (past)
- schrader7032
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Re: Strange motor behavior at high speed
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- jwonder
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Re: Strange motor behavior at high speed
Vice President, Vintage BMW Motorcycle Owners
2022 BMW Friend Of the Marque
Long Island, New York
- therealkennyboy
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Re: Strange motor behavior at high speed
Scottsdale, AZ, USA
1960 R60 (currently), 1974 R75/6 (past), 1981 R100CS (currently), 1984 R100RS (past), 1989 K100RS (past)
- Flx48
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Re: Strange motor behavior at high speed
Verify static timing set at "OT" on the flywheel, with "0" marking on the rotor aligned with the RH edge of the sensor.
Verify advance unit is set with four switches in off position. (for timing of 8 degrees BTDC at idle and 38 degrees BTDC at 3000rpm)
Verify sufficient fuel flow at the carb end of a fuel line.
For me, with 4 gallons in the tank, flow gets around 400ml/min.
More fuel volume in the tank will equal more head/flow, less fuel volume less head/flow.
Best-
George
- Micha
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Re: Strange motor behavior at high speed
Could it be that the reason is little fuel amount in the tank?
I assume that in a few miles I will hit the reserve mode.
R51/3 1952
Engine Nr. 529466
- Micha
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Re: Strange motor behavior at high speed
If there's a chance that's the reason, I'll fill up the tank and go for a test drive.
If the chance is slim, I'll drain it and start disassembling that tap and filters that sit on the rubber lines.
R51/3 1952
Engine Nr. 529466
- schrader7032
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Re: Strange motor behavior at high speed
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.