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Discussion Starter · #1 ·
Hi everyone ,
new to club but have and owned my 2016 CB1000 r from new replaced the original pregnant guppie Cat and exhaust with a straight through pipe and a grp1 Scorpion silencer .
A couple of weeks ago went for a spin bike started just fine went to fuel up a few miles from home and bike wouldn’t start again ,the battery went dead after only about 7/8 attempts to restart recharged battery put back on she fired up straight away went back home left it for 20 mins she fired up straight away again and the same later . Thought maybe one of the cells in battery dying so replaced battery put new battery on and the bike will not start . At the end of turning over there is a bit of a backfire but will not make any attempt to fire up wondered if its a fuel thing or any other useful advise would be thank fully received . The bike has done around 11.000 miles cheers .
Tire Wheel Fuel tank Vehicle Automotive lighting
 

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On a side note, this is the recommendation from Akrapovič when you remove the CAT:
WARNING!
Akrapovič Slip-On with optional link pipe for Honda CB1000R must be used in combination with ECU fuel mapping enrichment, otherwise you risk severe engine damage!

For Dynojet Power Commander users: PC III USB mappings for HONDA CB1000R available on

PC III USB mappings available for HONDA CB1000R
www.powercommander.com:
M135-504 (with DB killer)
M135-505 (without DB killer)
It's exactly what I did
Wheel Tire Sky Car Cloud
 

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sound like your generator or /and the rectifier , pretty common problem on all SC57 emgine and derivated.

start the bike with a full charged battery , rev the engine @ 4500 rpm and measure voltage on battery terminal , it´must be between 13,7 and 14,5 volts.
different lower or higher values are a signal something is not ok on the charge system .


If the bike is not start due unburned fuel in the engine , gave full throttle and crank the engine for 15 seconds (do this 5 times)
(on start phase if you apply full throttle the fuel pump will be switched off from the ecu)
 

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Discussion Starter · #5 ·
sound like your generator or /and the rectifier , pretty common problem on all SC57 emgine and derivated.

start the bike with a full charged battery , rev the engine @ 4500 rpm and measure voltage on battery terminal , it´must be between 13,7 and 14,5 volts.
different lower or higher values are a signal something is not ok on the charge system .


If the bike itnot start due unburn fuel in the engine , gave full throttle and crank the engine for 15 seconds (do this 5 times)
(on start phase if you apply full throttle the fuel pump will be switched off from the ecu)
Cheers for that will give it a go 🤞
 

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Discussion Starter · #6 ·
Hi everyone ,
new to club but have and owned my 2016 CB1000 r from new replaced the original pregnant guppie Cat and exhaust with a straight through pipe and a grp1 Scorpion silencer .
A couple of weeks ago went for a spin bike started just fine went to fuel up a few miles from home and bike wouldn’t start again ,the battery went dead after only about 7/8 attempts to restart recharged battery put back on she fired up straight away went back home left it for 20 mins she fired up straight away again and the same later . Thought maybe one of the cells in battery dying so replaced battery put new battery on and the bike will not start . At the end of turning over there is a bit of a backfire but will not make any attempt to fire up wondered if its a fuel thing or any other useful advise would be thank fully received . The bike has done around 11.000 miles cheers . View attachment 49894
[Well finally got to the bottom of the non starting issue , Spark plugs need replacing . For a bike that has done 11k and these iridium plugs are supposed to last for at least double that time not over impressed .
 

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Low battery most of the time is ending in wet plugs . those are easy to fuck when wet . Hope you find the solution.
 

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Well finally got to the bottom of the non starting issue , Spark plugs need replacing . For a bike that has done 11k and these iridium plugs are supposed to last for at least double that time not over impressed .
That's what happens when you modify the exhaust and not the fuel map.
 

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Discussion Starter · #9 ·
That's what happens when you modify the exhaust and not the fuel map.
The exhaust was changed from the bike coming out of the shop as new , was told the ecu would work out the change of pipe within 100 miles from the Honda dealer .
 

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was told the ecu would work out the change of pipe within 100 miles from the Honda dealer .
You going to believe the dealer that's trying to sell a bike or Akrapovič? Should have asked the dealer to replace the plugs then if they'll stand behind those mods.
 

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For a bike that has done 11k and these iridium plugs are supposed to last for at least double that time not over impressed.
As the original owner when I traded in the bike with 21,460 miles on it, the only thing replaced due to wear was a battery, tires, brake/clutch fluid, oil and oil filter. Always started like a champ even when the OEM battery started losing full capacity.

 

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Spark plugs per manual:
Inspect Every 16,000 mi (25,600 km)
Replace Every 32,000 mi (51,200 km)

Never had to replace plugs "early" on ANY Honda I've owned.
 

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Or 24000-48000 km
 
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