Search found 77 matches

by Andey
Sun Aug 29, 2021 2:40 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 engine / Oil temp
Replies: 4
Views: 565

Re: R75/6 engine / Oil temp

Good to hear from you Schrader, hope all’s well!! I’ll take it for a few more rides and see if anything changes… I’ll shoot it with a temp sensor after the ride to see if there’s any insights that way… I did get a cam down the pistons and I’m wondering if the cylinders are passing oil past the rings...
by Andey
Sun Aug 29, 2021 7:54 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 engine / Oil temp
Replies: 4
Views: 565

R75/6 engine / Oil temp

Hi all, Andey here again, it’s been a while since logging in. Straight to the point, how hot should the engine (looking more at the crankcase, rather than cylinders) be running at? I know we cant gauge the engine itself, so should I be looking at the oil temp? I might be imagining it, but the crankc...
by Andey
Wed Dec 23, 2020 9:56 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: Extracting the main bearing r75/6
Replies: 0
Views: 1962

Extracting the main bearing r75/6

Hi all,

I’ve managed to receive the cycleworks engine tools stage 3...

But I’m having trouble with extracting the main bearing from the front bearing carrier because the instructions didn’t mention anything...

Anyone have any ideas on how to use it for extraction?
by Andey
Fri Dec 11, 2020 11:47 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 Clutch noise
Replies: 3
Views: 1061

Re: R75/6 Clutch noise

It's pretty normal if the noise disappears when the clutch is dis-engaged. It's a dry clutch setup and it's the small amount of play on the throw-out bearing assy. and thrust rod. In some cases, the felt on the thrust rod is missing. You could pull the rod to verify if the felt is still there. Item...
by Andey
Tue Dec 08, 2020 6:36 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 Clutch noise
Replies: 3
Views: 1061

R75/6 Clutch noise

I’m sure there’s another post on this, but I’m getting a noise in the transmission area which sounds like the clutch plates, that disappears when I pull the clutch in...

Seems like a common problem, but I couldn’t find any conclusions to the problem online...

Any thoughts?
by Andey
Tue Dec 08, 2020 6:33 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 oil breather valve disk type
Replies: 2
Views: 864

Re: R75/6 oil breather valve disk type

schrader7032 wrote:
Mon Dec 07, 2020 10:51 am
My Haynes manual says the same thing. Must be something that the engineers figured out.

As for pictures, try reducing the size of the image on your computer before uploading. Shoot for a size of about 1Mb.
That’s a little reassuring to know... especially if there’s multiple sources... thanks!
by Andey
Mon Dec 07, 2020 10:38 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 oil breather valve disk type
Replies: 2
Views: 864

R75/6 oil breather valve disk type

Just reading on Snowbums site about the earlier disk type...

There’s a clip position compressing the spring holding the disk in place... Why would the 75/6 and 75/5 use a different clip position? Shouldn’t they be the same setup?

(Can’t seem to attach an image)
by Andey
Tue Dec 01, 2020 11:24 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 Points/condenser issues
Replies: 16
Views: 2872

Re: R75/6 Points/condenser issues

Well, I can't see what you're seeing close up. But wouldn't there be some changes to the surface of the points with operation? I think one of the features of a condenser is to reduce the tendency to spark across the points just at opening. Could be that there has been some limited sparking during u...
by Andey
Mon Nov 30, 2020 12:39 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 Points/condenser issues
Replies: 16
Views: 2872

Re: R75/6 Points/condenser issues

Poor connections? Improper value of the condenser? Failing condenser? The points and condenser are fairly new and ordered from Motorworks in the UK... So I expect everything to be in order, but I’ve swapped out the condenser and points just for good measure... The picture here is the old one I’ve j...
by Andey
Sun Nov 29, 2020 12:26 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R75/6 Points/condenser issues
Replies: 16
Views: 2872

Re: R75/6 Points/condenser issues

schrader7032 wrote:
Sun Nov 29, 2020 12:21 pm
I doubt that a slight difference from 0.40mm makes a difference in this situation.
Then that worries me... I was hoping it was because of the gap, that there might be overheating causing the arc at the points...

But what could cause the condenser to not function properly?