Nute Posted January 4 Author Share Posted January 4 On 31/12/2025 at 20:12, Catteeclan said: That a 2v model Nute? Yes, a 1983/4 RS Hall effect sensors were OK and got it running today after a soaking in petrol after a connection to the fuel rail leaked. Fortunately the exhaust stubs weren't hot enough to set it all alight Runs a bit rich but I've not had it up to temp yet, ran out of time. If anything I expected it to be lean due to the difficulties in getting the induction post air flow sensor all airtight. Id love to get rid of that thing. I now have to decide if  Im going to keep the original loom or bit the bullet and rewire it with motogadget. Also need to deal with the front end - decided to keep the original forks and brakes and rebuild it all, and change all the lights.  Link to comment Share on other sites More sharing options...
Catteeclan Posted January 5 Share Posted January 5 I have a repair manual I pulled from somewhere, it's got some good info should you need it. Link to comment Share on other sites More sharing options...
Nute Posted January 5 Author Share Posted January 5 Cool, thank you !! Is it a physical book ? I downloaded a manual and then printed it out, its getting a bit dog eared and oily now  Its been really useful although the photos are all b&w and hard to see any detail  as its from 40 years ago. There are also some brilliant web sites maintained by real enthusiasts with a lot of good info. Ive been looking at a tank cap& lights - headlights, indicators, brake lights etc. There are some nice looking ones on the "restore/ custom your BMW" type sites but they are very pricey. I ordered some chinky equivalents and some have turned up - appear to be very nice quality at 25% of the cost, although not tested / tried fitting them yet.  Link to comment Share on other sites More sharing options...
Catteeclan Posted January 6 Share Posted January 6 11 hours ago, Nute said: Cool, thank you !! Is it a physical book ? I downloaded a manual and then printed it out, its getting a bit dog eared and oily now  Its been really useful although the photos are all b&w and hard to see any detail  as its from 40 years ago. There are also some brilliant web sites maintained by real enthusiasts with a lot of good info. Ive been looking at a tank cap& lights - headlights, indicators, brake lights etc. There are some nice looking ones on the "restore/ custom your BMW" type sites but they are very pricey. I ordered some chinky equivalents and some have turned up - appear to be very nice quality at 25% of the cost, although not tested / tried fitting them yet.  No it's 3.1mb. It's all about trouble shooting with wiring diagrams and testing methods. Link to comment Share on other sites More sharing options...
Nute Posted January 7 Author Share Posted January 7 I have the troubleshooting the EFI one, but if you are happy to share the more info the better ! There are a few really good forums with lots of useful info on them, motobrick.com & K100-forum are both very good.  Some of those guys have rebuilt any number of them and know them inside out. Link to comment Share on other sites More sharing options...
Nute Posted January 30 Author Share Posted January 30 Slightly annoying day, put some new exhaust headers on the bike, then noticed a very slight coolant weep around the base of a stub on top of the block. It's buried in amongst everything else, pretty much the first thing I put back on when putting it all back together. Â I put a new o ring on the bloody thing when I was reassembling it. Whilst trying to work out the best way of getting at it which won't involve taking the whole thing apart again I noticed a tiny drop of fuel drip from the underside of the tank. Not sure if it is a tank leak or a pipe /joint ... sigh...gave up and came inside for a fish finger sandwich dinner (chef is away with her mates)... Â Link to comment Share on other sites More sharing options...
Buckster Posted January 30 Share Posted January 30 22 minutes ago, Nute said: Slightly annoying day, put some new exhaust headers on the bike, then noticed a very slight coolant weep around the base of a stub on top of the block. It's buried in amongst everything else, pretty much the first thing I put back on when putting it all back together. Â I put a new o ring on the bloody thing when I was reassembling it. Whilst trying to work out the best way of getting at it which won't involve taking the whole thing apart again I noticed a tiny drop of fuel drip from the underside of the tank. Not sure if it is a tank leak or a pipe /joint ... sigh...gave up and came inside for a fish finger sandwich dinner (chef is away with her mates)... Â German shite. Link to comment Share on other sites More sharing options...
Nute Posted January 31 Author Share Posted January 31 Tried to get at the coolant stub this morning, its fixed to the block by 2 bolts. To get at one of them I had to dismantle virtually the whole bloody bike. Thankfully didn't see any more fuel leaking, still not sure what might have been the cause of what I saw yesterday. Last thing I want is to have to find a new tank.     3 Link to comment Share on other sites More sharing options...
busabeast Posted January 31 Share Posted January 31 1 hour ago, Nute said: Tried to get at the coolant stub this morning, its fixed to the block by 2 bolts. To get at one of them I had to dismantle virtually the whole bloody bike. Thankfully didn't see any more fuel leaking, still not sure what might have been the cause of what I saw yesterday. Last thing I want is to have to find a new tank.     Well these things are sent to try us... 1 Link to comment Share on other sites More sharing options...
Nute Posted 2 hours ago Author Share Posted 2 hours ago Took the slightly leaky rad off earlier to fit the brand spanking new one. Swapped over the thermostat and the bloody thing doesn't fit. In every other aspect the new one is the same as the OEM, except the depth of the thermostat housing, which is 11mm deep so the decking thermostat flaps about. Going to put the old one back on ... New lithium battery has arrived so can fit the new clocks and doubtless spend hours getting them to interface with the existing electrics ... just can't wait ... 1 Link to comment Share on other sites More sharing options...
Pedro Posted 1 hour ago Share Posted 1 hour ago 32 minutes ago, Nute said: New lithium battery has arrived so can fit the new clocks and doubtless spend hours getting them to interface with the existing electrics ... just can't wait ... Seems like you’re having fun! Link to comment Share on other sites More sharing options...
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