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Search found 1284 matches

by 808Airhead
Thu Apr 25, 2024 1:34 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Sparkplug issue
Replies: 32
Views: 973

Re: Sparkplug issue

How many times are you kicking it for the compression test? You have to kick it over 5-6 times to reach max reading, the first kick is always a good indicator, but will. It give total reading. If it is that low after 5-6 kicks, then you are going in circles with the carbs, I went through the same th...
by 808Airhead
Thu Apr 25, 2024 1:32 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Sometimes it’s just fate
Replies: 0
Views: 50

Sometimes it’s just fate

There is a small town in Oahu, Hawaiian islands called Wahiawa, it is a old place and has its moments of beauty. I acquired my first BMW 14 years ago, and it was pure serendipity that a friend of mine saw my bike and said ( in our local dialect/pidgin) “ you like those kine bikes?” , he then said “g...
by 808Airhead
Thu Apr 25, 2024 4:43 am
Forum: Vintage (1948-1969) Motorcycles
Topic: Alternative rear crank bearing
Replies: 1
Views: 111

Alternative rear crank bearing

Check this out, I saved these pics off of FB where I saw a European restorer using this actual roller, not barrel bearing. I messaged him and he mentioned he always built engines this way. He said this was the original design for the war time R75 engine and allows the crank to move in & out rear...
by 808Airhead
Thu Apr 25, 2024 4:33 am
Forum: Vintage (1948-1969) Motorcycles
Topic: Sparkplug issue
Replies: 32
Views: 973

Re: Sparkplug issue

Make sure you are holding throttle wide open when doing your compression test. If you are, then that is low. Maybe a ball hone and new rings gapped correctly will remedy this , otherwise it may be bad valve sealing . Either way, that compression is low. If fouling plugs, more than likely rings or ex...
by 808Airhead
Wed Apr 24, 2024 10:56 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Sparkplug issue
Replies: 32
Views: 973

Re: Sparkplug issue

I think it may be your air filter “foam”. Try to source an original filter element or even try without the element to see if it improves. Everything else being OK, the filter foam can be quite restrictive.
by 808Airhead
Sun Apr 21, 2024 4:43 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Sparkplug issue
Replies: 32
Views: 973

Re: Sparkplug issue

I just looked at my carb body and I was incorrect, even on the older carbs turning mixture screw out DOES lean the carb out at idle….SO…. Your left carb has screw out much more than right side. Do a compression test, and are you 100% sure your timing is spot on? Retarded timing will make it idle wei...
by 808Airhead
Sat Apr 20, 2024 10:16 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Sparkplug issue
Replies: 32
Views: 973

Re: Sparkplug issue

Make sure your slide needle is in correct position. If you have correct carburetor then mixture screw out is rich. Plug fouling is too much oil or fuel….
by 808Airhead
Sat Apr 20, 2024 1:39 am
Forum: Vintage (1948-1969) Motorcycles
Topic: modern equivalent oils/greases
Replies: 9
Views: 406

Re: modern equivalent oils/greases

Yes, but it is yellow metal safe, it meets or exceeds GL5 and MT-1 ratings
by 808Airhead
Thu Apr 18, 2024 7:41 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: modern equivalent oils/greases
Replies: 9
Views: 406

Re: modern equivalent oils/greases

Being a vintage VW enthusiast as well as a passionate BMW pre-69 bike collector/fan/mechanic,I use the same as I do on the VW's. 1. Valvoline VR-1 40W racing oil,it has zinc added. 2. Lucas 80-90W gear oil....makes noticable improvement in shifting in my exerience. 3. Grease,I use Moly grease I get ...
by 808Airhead
Wed Apr 17, 2024 5:03 am
Forum: Vintage (1948-1969) Motorcycles
Topic: Greetings from a Vintage Guy
Replies: 8
Views: 385

Re: Greetings from a Vintage Guy

Aloha Fred! Great stories…. Looking forward to the pics! If you need any help or parts, here is the place. 🤙🏽