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BMW Technical Q&A, Primarily R65 / how do i check final drive oil level? there are 3 openings.
« Last post by davenerk on June 28, 2026, 04:44:52 PM »
i am sure this is a common question but even though i found references to it, i did not find the answer.  i changed the final drive oil yesterday, drained it and added back 350cc.  the clymer manual and the internet mention looking in the hole and checking the level and measuring from the lip of the hole down to the oil.  they cant mean the drain plug, and i dont think they mean the vent.  but the bolt in the straight back isnt similar at all to the allen head bolt that sits horizontally in ALL the pictures i could find.  could someone just set me straight?  where and how do i check level?
42
BMW Technical Q&A, Primarily R65 / Built a GPS speedo for my '85 R65
« Last post by davenerk on June 28, 2026, 04:16:06 PM »
speedo was doing badly, herky jerky and basically useless.  i took it apart very carefully and greased the gears and cleaned it out and reassembled.  no more herky jerky but 10 miles over up to  40mph and up to 20 miles over at 60mph.  i reckon i could try to tension the spring inside or replace it but i built a GPS speedo instead.  i thought i would post pictures.  i used a small ESP32 chip, a GPS module, a voltage down converter (12v to 5v) and i think there is a temp/humidity sensor in there if i had more display room.  right now it shows number of satellites, mph, and battery voltage.  i was going to have it say ambient temp and humidity but wanted to ride more than i wanted to work it out.

3d printed a case for it.  i have ideas for a better case (prettier) and a space at the bottom for an LCD display which would be more readable in sunlight.
43
BMW Technical Q&A, Primarily R65 / Re: shocks
« Last post by Barry on June 28, 2026, 07:06:46 AM »
Quote from: Happy Eeyore on June 26, 2026, 05:04:42 PM
Thanks Barry.   Do you think a 340 would work or would that make the drive shaft in more of a rotational bind.  My uninformed opinion is that a 340 should work just fine but I am often wrong, particularly about stock market movements.

I haven't tried the longer shocks but I do find the bike feels a little cramped so I prefer to run the stock ones on the middle pre-load setting even solo and I weigh next to nothing.  The preload adjustment easily raises the ride height by that 15mm difference in shock length.

The other variable though is the spring rate which may be different for the 325mm and 340mm  shocks.  Stock 325mm shock springs are dual rate at approx. 105/145 lbs/in
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BMW Technical Q&A, Primarily R65 / Re: shocks
« Last post by Happy Eeyore on June 28, 2026, 05:54:57 AM »
Dog   I live in the north Georgia mountains  and we have lots of gravel roads. During heavy rains the gravel gets pushed off and there are deep ruts formed.  I do not like to drag.  I do not use the R65 on single track trails and have a Yamaha xt250 that I ride on a lot of rough stuff.  But the R65 now has about 4.5 inches of clearance which is very low and I have Hagon shocks ordered to replace the brick like, too short shocks now on the bike.  The R65 currently rides as hard as a Morgan Plus 4 which has about as much spring action as a skate board. It sits so low I find it impossible to put it on the center stand.  Gotta fix that problem.

I also have an old basement find 1995 R1100GS which I have brought back to life if I want to get the speed up a little. That bike has great clearance.  It also does not have the ABS mess and was made without ABS.   This is my 3rd R1100 and I have been able to get the Montronic fuel injection system to work pretty good.  The problems with that system is that the Hall wire insulation  simply rots and the electrons wander around on their own. 

The R65 is running pretty good now with the Seibenrock pistons and jugs and rebuilt heads.   
45
BMW Technical Q&A, Primarily R65 / Re: shocks
« Last post by dogshome on June 27, 2026, 02:05:38 PM »
Are you taking the R65/45 offroad? I'm 6'3" and far too fat. I very rarely have an issue with bottoming the shocks, and never an issue with clearence, Clarence, on road. The driveshaft will probably take it (like GS models do), but why?

46
General Announcements / Re: Forum hosting renewal time
« Last post by dogshome on June 27, 2026, 02:01:19 PM »
Lookout!  :o

Ping!  :bmw_smiley: :bmw_smiley: :bmw_smiley: :bmw_smiley: :bmw_smiley:
47
BMW Technical Q&A, Primarily R65 / Re: shocks
« Last post by Happy Eeyore on June 26, 2026, 05:04:42 PM »
Thanks Barry.   Do you think a 340 would work or would that make the drive shaft in more of a rotational bind.  My uninformed opinion is that a 340 should work just fine but I am often wrong, particularly about stock market movements.
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Chit-Chat / Hero Xpulse 200
« Last post by dogshome on June 26, 2026, 02:31:43 PM »
Before you all start falling about  :ROTFLMAO: I have already had a go on one  :beer:

Top speed is about 60, cruising speed, less! Can it do teeny figure 8's in the carpark with me at the helm? Yes! Will I break if I drop it, probably not. Did I have a big silly grin on my face after going up a gravel lane? Yes!

Thoughts?
49
General Announcements / Re: Forum hosting renewal time
« Last post by dogshome on June 26, 2026, 01:30:11 PM »
Ping! Ping!

 :bmw_smiley: :bmw_smiley: :bmw_smiley: :bmw_smiley: :bmw_smiley: :bmw_smiley: :bmw_smiley: :bmw_smiley:
50
BMW Technical Q&A, Primarily R65 / Re: shocks
« Last post by Barry on June 26, 2026, 01:04:21 AM »
Standard shock for type 248 R45/R65 is 325mm 

Other contemporary type 247 Airheads e.g. /7 are 340mm
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