The New And Improved Unofficial R65 Forum V2
General Category => General Announcements => Topic started by: stubmw on August 07, 2016, 02:50:42 AM
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Hi all, joined the forum last week. Just been out and bought my first bmw....and it's an r65 :) . Previos owner had started a cafe conversion (not for me) so dont have some original bits. Going for a scrambler look.
Stu
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Hello, Stu.
Welcome to the asylum. Post up some photos when you can. Us inmates love pictures!
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Hey Stu,
Welcome to what is a very happy and helpful bunch of people who just love their 65's :)
Where in the UK are you?
There are a few of us in the North with some great characters amongst us... :D
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Thanks for the welcome folks.
To Chris S, I live down in the far south west, long way from your neck of the woods (in UK distances) ;) l've been looking for a r65 for a little while and noticed most were up north.
Picture of what i have to work with. I have a few teething issues with carb and a rattle. I'll post in the tech section with a bit more detail later on and hopefully get some pointers.
Feels good to be on board. Stu
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Looking forward to seeing the finished article, cafe racer look isn't for everyone...
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What's your plan on this bike?
The handlebar makes it the most comfortable café bike I have ever seen.
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What's your plan on this bike?
The handlebar makes it the most comfortable café bike I have ever seen.
Yep, ok you got me, i had already changed the handlebars.
My idea is an old school style scrambler. Alloy mudguards, trail tyres, appropriate seat, etc. High rise exhaust could be nice. It's definitely going to be on on going project while i use it for the remainder of our summer 8-)
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Sounds great - can't wait to see it.
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What year model? Looks like a 1979. Flat top Bings, early airbox, smooth final drive case. The square master cylinder, if memory serves, is from later models. What front brake caliper? ATE or Brembo? There are differences between early/later R65s so it's always a good idea to state model year in post or as a sig line. Improves answers to tech questions.
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Welcome... square master cylinder is a Brembo which puts it at 1980 or 81 79 was the round ATE alla Gertie.... my Brothers bike had a Brembo master cylinder and a single ATE disc ? it was a 81
Lou
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Well i had my doubts about originality , but now it's all clear....as mud!! ;)
According to the v5 it's an '82 and the chassis no. is good.
Like Lucky Lou's brothers bike it has a brembo master and a single ATE disc.
The poor thing has had TEN owners in her life so anything could have happened .
Been out on the road this weekend and she's great...... ;D....other than quite a snatchy clutch and when stopped the carbs have flooded occasionally?, ( only done 9 miles in the last two years and ithink the tank has a rust issue?). I have put an in line filter in so fingers crossed.
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There is an issue with the tank lining which is some kind of red plastic compound, it breaks down and screws up the jets. A inline filter should show if that is the problem, you may need to give the tank a serious steam cleaning to get rid of the crud. The snatchy clutch is probably down to the cable.. where in the UK are you ? as you have so many previous owners I would pull the final drive and gearbox lube the splines and the crown wheel just to be on the safe side .... prevention is better than the cure and much cheaper.
lou
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What year model? Looks like a 1979. Flat top Bings, early airbox, smooth final drive case. The square master cylinder, if memory serves, is from later models. What front brake caliper? ATE or Brembo? There are differences between early/later R65s so it's always a good idea to state model year in post or as a sig line. Improves answers to tech questions.
Montmil you're absolutely correct, after a little research today i find the motor is a r65 1979, good to know that you know your engines. :)
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There is an issue with the tank lining which is some kind of red plastic compound, it breaks down and screws up the jets. A inline filter should show if that is the problem, you may need to give the tank a serious steam cleaning to get rid of the crud. The snatchy clutch is probably down to the cable.. where in the UK are you ? as you have so many previous owners I would pull the final drive and gearbox lube the splines and the crown wheel just to be on the safe side .... prevention is better than the cure and much cheaper.
lou
Thanks Lou i shall take your advice on the clutch and the final drive. The clutch action is actually really light and smooth, it just seems a bit all or nothing when it engages! ? I'm sure this should be in the tech talk section by now!?
I am some way from you, down in S Devon. Been out on her this evening in glorious sunshine :)
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...other than quite a snatchy clutch and when stopped the carbs have flooded occasionally?...
Stu, Scroll down to the FAQs section. I just posted an excellent article by Tom Cutter (you'll learn more about him as you continue your Airhead education) on clutch cable install, adjustment, and care. Well worth the read and Tom tells you how to make you very own BMW Airhead Clutch Cable Adjustment Tool. And it's free! My favorite 4-letter F-word.
The carb overflowing problem may be directly related to old and heavy floats. If they are sinkers or incorrectly adjusted, you'll be wetting your boots on a regular basis. May also be hardened rubber on the tips of the float needles, grunge twix the needle and seat and hard float bowl gaskets.
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Welcome Stu, got the beginnings of a great bike there mate, glad you sorted the h/bars if you continue the cafe look, or have you gone scrambler already? The R65 are good on gravel, make sure you look around the corners though as they're relatively heavy for their wheelbase!
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Ok, update,
This project could have gone a bit pear shaped.
After montmil pointed out the bike had an earlier engine than the chassis i asked a bike shop to check and they confirmed it ti be a '79 engine. OK
This weekend after checking through the carbs for some flooding i noticed the numbers weren't giving it as a 32mm . Upon further investigation on the interweb i find it's
an r45, oh no, will i still be allowed in the club.
Obviously a bit disappointed, but I've really taken to this bike. She runs sweet, sounds good and makes me grin.
Not knowing bm's well i had in my mind the engine and chassis no's don't match, this is apparently much later models. I checked the frame no. matched the documents so thought it was all good.
Way forward.... try to get a refund, probably not going to happen without mucho hassle, (Buyer beware).
Hang on to her as she is and have some slightly slower fun than anticipated and maybe put a r65 engine in if one comes along, (do the engines, gearbox, final drive match up on the various years 45/65's)? Plus side seems pretty frugal on the fuel.
Here's a picture of the latest incarnation..... everywhere i stop people comment on how great she is :)
Wadda ya all think?
Stu
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New update,
The plot thickens. ... or not. What seems to be, is this, I have an r65 1982 on the registration documents and everything is in order. At some point she's had a new bottom end etc. from an r45 manufactured 1979. The barrels/heads are 650 but running on '45 carbs. She pulls like a train if you ask me, sits at the motorway speed with ease and runs sweet as a nut. Covered 1000 miles in the month we've been together, no issues other than a blocked in line fuel filter. Stu is happy :)
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do the engines, gearbox, final drive match up on the various years 45/65's
Gearbox ratios are the same regardless of model year or R45 vs R65, only the final drive ratios are different.
R45 would have a 35/9 (3.89) final drive matched with a 1441 speedo
R65 would have a 31/9 (3.44) final drive matched with a 1276 speedo
If you have R45S carbs they will be 28mm. I guess they will knock something off the top end which is largely academic for most people. In more normal riding they may well function better than 32mm in the low/mid range. Most engines are over carbed to achieve the headline horsepower top speed that no one ever uses except just the once to see what it will do.
Not that it matters but the final drive regardless of what the ratio is, did not come from an 82 model. The fact that it's a smooth case dates it as 78-80. Same goes for the air filter housing which is the correct match for the 79 flat top carbs.
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Continue to enjoy the bike, if it goes well for you, why worry?
As I keep reminding my lovely wife, size (in CC's of course[ch128526]) isn't everything...
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R65 would have a 31/9 (3.44) final drive matched with a 1276 speedo
Don't you mean 32:10 Barry?
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Don't you mean 32:10 Barry?
There were at least 2 maybe 3 different ratio's used over the years on R65's including I guess 32/10. For the early model both the BMW workshop manual and the riders handbook I looked at listed the drive ratio as 31/9. Whether every smooth case final drive on an R65 was 31/9 I don't know Tony.
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Bucher. Quote Sounds great - can't wait to see it.
montmil. Quote Hello, Stu.
Welcome to the asylum. Post up some photos when you can. Us inmates love pictures!
How do i grab multiple quotes from a topic and repost them in the little grey boxes. I hit 'quote' and get a load of code with it.