3narf Posted December 29, 2020 Report Share Posted December 29, 2020 I have service and workshop manuals from Carl Salter (is he from Hull? The name rings a bell) but I'm building a special around a BMW G650 engine and I know very little about its architecture. I'm thinking about stuff like component location, what components make up the fuel injection / ignition systems, sensors / thermostats etc? I assume it's a dry sump motor purely because I've seen oil tanks on ebay... 🙄 I've tried the f650 forum but my membership has been pending for months! Thanks Quote Link to comment Share on other sites More sharing options...
John21 Posted December 29, 2020 Report Share Posted December 29, 2020 Sorry I can't be of any help, but are you going for a supermono? This was quite a popular engine choice back in the day. 1 Quote Link to comment Share on other sites More sharing options...
Superdunc Posted December 29, 2020 Report Share Posted December 29, 2020 3 hours ago, 3narf said: I have service and workshop manuals from Carl Salter (is he from Hull? The name rings a bell) but I'm building a special around a BMW G650 engine and I know very little about its architecture. I'm thinking about stuff like component location, what components make up the fuel injection / ignition systems, sensors / thermostats etc? I assume it's a dry sump motor purely because I've seen oil tanks on ebay... 🙄 I've tried the f650 forum but my membership has been pending for months! Thanks BMW parts Fisch 2 Quote Link to comment Share on other sites More sharing options...
4tgp Posted December 29, 2020 Report Share Posted December 29, 2020 https://www.dualsportafrica.com/BMW F650GS Manual.pdf the first google search. 1st gen were carb, 2nd gen were injection. They are different, but the basic layout is the same. Obviously the drive chain is on the right hand side and I think some variants are belt drive. So if you are thinking of putting one in the Sachs 125 chassis, you have added complications. 2 Quote Link to comment Share on other sites More sharing options...
Thunderbolt Posted December 30, 2020 Report Share Posted December 30, 2020 If only there were some one on here who tuned one to 73bhp and put it into an ally frame with tz250 geometry? 1 1 Quote Link to comment Share on other sites More sharing options...
Evilchicken0 Posted December 30, 2020 Report Share Posted December 30, 2020 4 hours ago, Thunderbolt said: If only there were some one on here who tuned one to 73bhp and put it into an ally frame with tz250 geometry? A bit like the Bimota BB1 1 Quote Link to comment Share on other sites More sharing options...
Swarf Posted December 31, 2020 Report Share Posted December 31, 2020 (edited) Same motor as the pegaso 650, which I have so I may be able to help with questions @3narf? Edited December 31, 2020 by Swarf 1 Quote Link to comment Share on other sites More sharing options...
Alex_H Posted January 2, 2021 Report Share Posted January 2, 2021 On 12/29/2020 at 8:43 PM, Superdunc said: BMW parts Fisch https://shop.maxbmw.com/fiche/DiagramsMain.aspx?vid=51552&rnd=09082020 1 Quote Link to comment Share on other sites More sharing options...
3narf Posted January 14, 2021 Author Report Share Posted January 14, 2021 On 12/29/2020 at 11:29 PM, 4tgp said: https://www.dualsportafrica.com/BMW F650GS Manual.pdf the first google search. 1st gen were carb, 2nd gen were injection. They are different, but the basic layout is the same. Obviously the drive chain is on the right hand side and I think some variants are belt drive. So if you are thinking of putting one in the Sachs 125 chassis, you have added complications. Hi Drive will be on the same side as the shock, but it doesn't look like it will present major problems. The swingarm is steel so I could put an extra brace on the R side easily enough. Quote Link to comment Share on other sites More sharing options...
3narf Posted January 14, 2021 Author Report Share Posted January 14, 2021 On 12/31/2020 at 7:29 PM, Swarf said: Same motor as the pegaso 650, which I have so I may be able to help with questions @3narf? Thanks! Any info would be gladly received. Quote Link to comment Share on other sites More sharing options...
3narf Posted January 14, 2021 Author Report Share Posted January 14, 2021 On 12/30/2020 at 5:51 PM, Thunderbolt said: If only there were some one on here who tuned one to 73bhp and put it into an ally frame with tz250 geometry? I'd be interested to read about that! Quote Link to comment Share on other sites More sharing options...
Swarf Posted January 14, 2021 Report Share Posted January 14, 2021 15 minutes ago, 3narf said: Thanks! Any info would be gladly received. Well, I'm assuming it's the rotax 655 here (chain on right). If so yes you're right, it's a dry sump. On the peg the oil tank is in the top spine of the frame. Fueling is a pair of mikuni bst33's, coil is mounted above cylinder head on the rh side of the frame. Not sure where the sensor for water temp is but I'll have a look later (might need a prod....😂). The thermostat may be different on the bmw as the peg has a different cylinder head (5 valve) and water pump arrangement but again I'll have a look in a bit. 1 Quote Link to comment Share on other sites More sharing options...
3narf Posted January 14, 2021 Author Report Share Posted January 14, 2021 1 hour ago, Swarf said: Well, I'm assuming it's the rotax 655 here (chain on right). If so yes you're right, it's a dry sump. On the peg the oil tank is in the top spine of the frame. Fueling is a pair of mikuni bst33's, coil is mounted above cylinder head on the rh side of the frame. Not sure where the sensor for water temp is but I'll have a look later (might need a prod....😂). The thermostat may be different on the bmw as the peg has a different cylinder head (5 valve) and water pump arrangement but again I'll have a look in a bit. Thanks, I can't remember exactly what year the engine is although I have a label somewhere with the year and mileage. It has a single inlet so I guess it needs a throttle body as opposed to carbs... Quote Link to comment Share on other sites More sharing options...
Swarf Posted January 14, 2021 Report Share Posted January 14, 2021 4 minutes ago, 3narf said: Thanks, I can't remember exactly what year the engine is although I have a label somewhere with the year and mileage. It has a single inlet so I guess it needs a throttle body as opposed to carbs... Ah, probably post 2000 then, they did run a single throttle body. In which case my info won't be of much use, sorry! 1 Quote Link to comment Share on other sites More sharing options...
3narf Posted January 14, 2021 Author Report Share Posted January 14, 2021 56 minutes ago, Swarf said: Ah, probably post 2000 then, they did run a single throttle body. In which case my info won't be of much use, sorry! No worries, I think it's something like a 2012. I suppose I'll have to shell out for throttle body, ECU etc. I have a wiring loom and ignition coils so I'll just keep accumulating bits and sell what's left at the end. Then there's the small matter of the 1st bike I'm building using the prototype watercooled CCM R30 engine. Uncharted territory there! I might have to seek professional help, in more ways than one. 😆 Quote Link to comment Share on other sites More sharing options...
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