Does anyone else have this issue with their Bobber ... - Triumph Bobber Forum
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post #1 of 21 (permalink) Old 09-07-2017, 02:09 PM Thread Starter
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Does anyone else have this issue with their Bobber ...

Hi,

My Bobber has 300 miles on it so will be going for it's first service shortly. I am loving it but have an issue when commuting to work. If in 1st or 2nd gear and trying to cruise at a constant speed in traffic the bike feels 'jumpy'. What I mean is if trying to hold a constant RPM, say 2500, the bike will not cruise but is twitchy with the power coming through not consistently. It is not a massive issue but does make cruising at a constant speed a bit unenjoyable.

Sometimes I pull the clutch in slightly and that makes it better, but I don't really want to be doing that as I'm sure that isn't great for the clutch. I must admit I'm a bit ignorant with motor engines and the such like (could the clutch need adjusting??), but wondered if this is usual for the bike in general or whether the first service will sort it out.

Any advice is appreciated.

Regards,
Rob
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post #2 of 21 (permalink) Old 09-07-2017, 02:29 PM
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Hi,

My Bobber has 300 miles on it so will be going for it's first service shortly. I am loving it but have an issue when commuting to work. If in 1st or 2nd gear and trying to cruise at a constant speed in traffic the bike feels 'jumpy'. What I mean is if trying to hold a constant RPM, say 2500, the bike will not cruise but is twitchy with the power coming through not consistently. It is not a massive issue but does make cruising at a constant speed a bit unenjoyable.

Sometimes I pull the clutch in slightly and that makes it better, but I don't really want to be doing that as I'm sure that isn't great for the clutch. I must admit I'm a bit ignorant with motor engines and the such like (could the clutch need adjusting??), but wondered if this is usual for the bike in general or whether the first service will sort it out.

Any advice is appreciated.

Regards,
Rob
Maybe that or check your chain slack.
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post #3 of 21 (permalink) Old 09-07-2017, 02:30 PM
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I remember someone saying that the fuel map is not made for lower speed traffic situations, but that when they switched it into rain mode it was much smoother in those contexts. Might be worth a try when in traffic. Then switch back when you have an open road...

Or it could be a real issue!
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post #4 of 21 (permalink) Old 09-07-2017, 03:27 PM
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Probably a slack chain, at 300 mine really needed adjusting
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post #5 of 21 (permalink) Old 09-07-2017, 04:55 PM
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So I was experiencing the same problem. Last week I was in for my first service, so I replaced the stock grips with brown barrel grips. When the mechanic came out, I asked him why the new grips were significantly shorter that the stock ones. His reply was that there was an issue with the early production bikes with the throttle causing problems or sticking. I haven't heard this before, but it does make sense.
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post #6 of 21 (permalink) Old 09-07-2017, 05:27 PM
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Hey

I had exactly the same issue. Originally I put it down to the fact it needed running in and thought it would be ok after the first service, but it persisted. Trying to hold her steady between 20-30 was a struggle thought it may be a fueling problem.
Eventually got her back to the dealers and they found the throttle bodies were out of adjustment.
The amount of adjustment needed couldn't be done by plugging in, so they had to manually adjust them.

Over 1500 miles in now and she's pretty sweet now!
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post #7 of 21 (permalink) Old 09-08-2017, 02:28 AM Thread Starter
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Hi,

Thanks for the replies. I thought it didn't seem quite right, so I'll ensure they look to resolve this during the first service. I'll let you know how it goes!

Cheers,
Rob
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post #8 of 21 (permalink) Old 09-08-2017, 08:34 AM
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This might be stating the obvious but have you tried rain mode? If itís still jerky in this mode then you really do have a fault.
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post #9 of 21 (permalink) Old 09-08-2017, 12:58 PM
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Quote:
Originally Posted by Rob Jones View Post
Hi,



My Bobber has 300 miles on it so will be going for it's first service shortly. I am loving it but have an issue when commuting to work. If in 1st or 2nd gear and trying to cruise at a constant speed in traffic the bike feels 'jumpy'. What I mean is if trying to hold a constant RPM, say 2500, the bike will not cruise but is twitchy with the power coming through not consistently. It is not a massive issue but does make cruising at a constant speed a bit unenjoyable.



Sometimes I pull the clutch in slightly and that makes it better, but I don't really want to be doing that as I'm sure that isn't great for the clutch. I must admit I'm a bit ignorant with motor engines and the such like (could the clutch need adjusting??), but wondered if this is usual for the bike in general or whether the first service will sort it out.



Any advice is appreciated.



Regards,

Rob


I did experience the same thing. I don 't know if it's just imagination but since i have switched from 95 octane gasoline to 98 octane gasoline i think in runs much smoother at lower speed.
You could try this if you didnt already


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post #10 of 21 (permalink) Old 09-08-2017, 02:31 PM
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The rain mode test is free and easy, so I'd do it. If turning to rain mode fixes the issue, that points to fuelling. If it doesn't, that points to chain/throttle balancing/grip sticking/any number of other issues.

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