Author Topic: Brief cut-out when de-accelerating Himalayan BS4  (Read 130 times)

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kiwistopher

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on: March 14, 2021, 10:21:55 pm
Hi guys and gals; I just had a fast 700 km ride (110 to 115km) and occasionally my bike would miss a beat or stutter when de-accelerating or winding-on after accelerating. It's a carby model; any ideas what might the issue be? (weather fine and clear, long carless roads in NZ)


zimmemr

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Reply #1 on: March 14, 2021, 10:44:20 pm
Hi guys and gals; I just had a fast 700 km ride (110 to 115km) and occasionally my bike would miss a beat or stutter when de-accelerating or winding-on after accelerating. It's a carby model; any ideas what might the issue be? (weather fine and clear, long carless roads in NZ)
First thing is to look for flotsam in the float bowl. It sounds like you may have some debris or water getting into the pilot jet.


kiwistopher

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Reply #2 on: March 15, 2021, 02:16:05 am
Thanks for that, zimmer. Youtube says there is a tube you can cut...heard of that?


zimmemr

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Reply #3 on: March 15, 2021, 04:25:07 am
Thanks for that, zimmer. Youtube says there is a tube you can cut...heard of that?

Sounds like they mean removing the EVAP system, there is a thread on that here someplace, but it pertains to the EFI version. We've never had the carb versions here in the states so I 'm not sure if it even has an EVAP system, or for that matter if that's what the youtube post is about.


oldphart

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Reply #4 on: March 15, 2021, 08:08:03 am
I'll raise the spectre of the Bosch plug that comes with the bike. Mine started breaking down at high revs just after 6,000 kms. Changing the plug cures it.
Grandpa Slow

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kiwistopher

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Reply #5 on: March 15, 2021, 09:50:19 am
Thanks, I'll change the plug...