Bike will not start - BMW R1200GS Forum : R1200 GS Forums
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post #1 of 16 (permalink) Old 30-Jun-2017, 04:43 PM (905) Thread Starter
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Bike will not start

Goods morning/evening/afternoon

Hi everyone, I need some help....I live in an area in Australia(Queensland), where there are little or no bike mechanics, so when my 2011 12GS Adventure started to struggle starting one morning, then when it did it was making a horrible ratting noise, i decided to strip it right down and give it a massive 'service', with my Haynes manual in tow off I went. I ordered all genuine parts from Munich Motorcyles. I changed the piston rings, cleaned the pistons, new air filter, plugs all round, new gaskets. I'm sure, or i thought i was, that i got the timing right!!! Now it's all back together, I charged the battery then went to start the bike, it's cranking really well, however not firing, if i get someone to turn the bike over for me and i stand at the exhaust i get a really strong fuel smell, but it just keeps turning over.

Advice would be greatly appreciated on where/what to do - tools/diagnostic equipment i may need - in fact just any help at all - many thanks - Rick
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post #2 of 16 (permalink) Old 30-Jun-2017, 07:41 PM (028)
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Before you panic

Check the position of all your switches and electrical connections. It'll def be something simple Rick.
Cheers
Greg

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post #3 of 16 (permalink) Old 30-Jun-2017, 08:24 PM (058)
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If your valve timing is correct, follow the suggestion of PoppyGreg and check every connection, including the crank-angle sensor.

Past: 1955 Norton ES-2, 1972 Norton 750 Commando Long Range Fastback, 1977 Honda 350XLE, 2001 R1150RT (written off), 2005 R1150RT, 2004 R1150GS, 2001 F650GS.
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post #4 of 16 (permalink) Old 30-Jun-2017, 08:46 PM (073) Thread Starter
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Cheers guys

Thanks for the suggestions I'll go try that now..
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post #5 of 16 (permalink) Old 01-Jul-2017, 01:23 AM (266)
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In addition to the above, make sure to check the throttle cables into the TBs & junction box...that's the same smell I got with a misplaced cable. Repositioned it and boom...off and running.

Yeah, I know...first post...what do I know.

Ed

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post #6 of 16 (permalink) Old 01-Jul-2017, 02:30 AM (313) Thread Starter
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Non starter GS Adventure

Stripped the bike down again and this time found what looks like a connection with a missing plug - (2) wires, a blue/green and a yellow/purple - i think looking at the wiring diagram, don't fully understand i, its called a FUEL REGENERATION VALVE, i don't remember unplugging it, but i can't find the male end anywhere!! Tried to send a photo but it didn't work
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post #7 of 16 (permalink) Old 01-Jul-2017, 02:36 AM (317) Thread Starter
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Photo success

See photo below, anyone recognise this FUEL REGENERATION VALVE thingy
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post #8 of 16 (permalink) Old 01-Jul-2017, 05:04 AM (419)
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First post or 500th

Quote:
Originally Posted by edorfox View Post
Yeah, I know...first post...what do I know....
Just as valuable.

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post #9 of 16 (permalink) Old 01-Jul-2017, 09:05 AM (587)
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Quote:
Originally Posted by rickynlisa View Post
See photo below, anyone recognise this FUEL REGENERATION VALVE thingy
Unless you zip tied it to that harness prior to your disassembly, then it is probably a connector for an option you don't have or a BMW diagnostic plug. After so many years, cables, harnesses will have formed a "memory" and all should just fall into place.
Make sure you are hearing both throttle body bell cranks tapping the blue screws when you quickly let off the throttle. Also, make sure the primary coils are pushed in fully, need to hear a sort of "pop" when they seat.

Ed
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post #10 of 16 (permalink) Old 01-Jul-2017, 09:38 AM (609)
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That plug goes to the fuel regeneration valve that is only found on U.S spec bikes, your Australia spec bike will have the plug unconnected just as it is, that isn't the problem.
If you have checked the throttle cables at the Bowden box already than I would suspect that you are not getting good spark, usually one bad stick coil will allow engine start but it will run poorly, two bad coils and it may or may not start but if it does it will barely run at all.
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