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Messages - robvangulik

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1
All Technical Issues / Re: RC27's bad cowl design
« on: August 01, 2020, 18:05:07 PM »
Yes, metal nut in a plastic part, bolt rusts in the nut and the square nut turns in the plastic reservoir....

2
All Technical Issues / Re: RC27's bad cowl design
« on: August 01, 2020, 15:05:34 PM »
Honda wasn't the first, Ducati was a year sooner with the Paso, I have no idea how they tackled that problem.
And Honda made the same mistake on another part as well, the coolant reservoir is also almost impossible to remove after some years of use in all weather....
But as I have said before, Honda did not really expect their bikes to be still in use after so many years, they would rather have sold us a new bike after a few years gribbin12

3
All Technical Issues / Re: 17/45 sprocket config has no problem
« on: July 23, 2020, 11:20:55 AM »
With that ratio the acceleration will be a bit less, and you won't get to top revs in top gear, but I don't think you'll go there very often. winky5a
I would have gone for a 16 teeth, just to try first.
Sorry, I have that program only in German language, but the numbers are understandable, I presume gribbin12

4
All Technical Issues / Re: Threadlocker
« on: July 17, 2020, 14:45:38 PM »
To be honest I never use Loctite or similar on brakedisc bolts, I just put them on 40Nm as per the manual, with a good torque wrench.
That is, together with crankshaft and bigend bolts, also the only time I use a torque wrench "in anger", and the only time I lost a bolt (just a month ago) was the 4mm screw holding the left side of my windscreen. Which I hadn't touched for probably 6 years or so.....

5
I'm afraid that won't fit as the 750 has 34mm carbs and the 1000 38mm. The part number would have been the same, and it is not!
You could research what the size and part nr. ( 16211MT4000) for insulators from a VFR750 are? That has 34mm carbs as well....no guarantee it'll fit though!

6
Bikers Cafe / Re: Ronin
« on: July 13, 2020, 13:33:44 PM »
I normally do not watch Vlogs very often, and never encountered this nice young lady.
But I must say, she does it very nice. I watched the series of tours she did here in the Netherlands (on a Royal Enfield called Lima she got loaned from the importer) and saw some places I know very well, she started the first tour less than 10 km from my home! I live only 12 km from Utrecht winky5a

7
Photo of (you (and) or) your bike :) / Re: 1987 CBR refresh
« on: July 10, 2020, 11:09:42 AM »
@Berye, did you check with a GPS if it works a bit accurate? winkywinky

8
Photo of (you (and) or) your bike :) / Re: 1987 CBR refresh
« on: July 04, 2020, 19:38:53 PM »
Well done, that bike looks already fabulous, you'll have problems getting it back from your mate!

9
All Technical Issues / Re: Wheel bearings
« on: July 01, 2020, 16:34:27 PM »
Bearings are cheap here too, and greasing has no use as the grease is enclosed in the bearing, you can see the ring that should be on it next to the old one. These are SC24 discs, much better than the SC21 discs, a bit heavier though.
And no, Like I wrote, I had to replace all wheelbearings at least once over the years.
I don't mind, with taking the wheel out it is less than half an hours work and if it needs to be done it needs to be done, like tyres and brake pads etc. without them a bike doesn't run!

10
All Technical Issues / Re: Wheel bearings
« on: June 30, 2020, 21:55:19 PM »
On my white bike I replaced the front bearings once, the rear wheel bearings once and the sprocket carrier bearing twice since 1994, when I bought the bike with some 25.000km on the clock.
On my black bike I had to do that more often, I think because for the last 25 years that has been ridden mostly in winter (and a lot of salt on the road) and overall bad weather. I didn't always make notes of changing wheelbearings on that bike, but it must have been at least 3 sets  of bearings on the rear, and maybe 2 in front. And that is since 1989, bought with 32k km. And I do not count the new ones I put in when changing to the wider SC24 wheels.
Both those bikes are now well past 300k km, black 14k and white 35k.
On my bikes I don't feel much difference in coasting, not even between the 400 and the 1000's, most important I think is that the brakes run free...

11
All Technical Issues / Re: Compatible driven sprocket
« on: June 24, 2020, 11:19:15 AM »
When I started using the sc24 wheels, mainly to have a better choice in modern tyres, I have tested many different sprocketsizes, and ended up at 43/18, slightly longer than standard.
Front sprockets for the RC27 are the same as the sc21/24, and I saw on their website JT have a broad spectrum of rear sprockets available for RC27 from 37 to 48 teeth.
The Gearingcommander site will be a great help deciding what to use, also concerning chainwear with the chosen gearings.
I have always wondered that Honda chose the 45/15 for the 750, I alway thought that a rear sprocket that was devisible by the front with whole numbers would be bad for chainwear as the same tooth came more often over the same chainlink.

12
All Technical Issues / Re: Compatible driven sprocket
« on: June 24, 2020, 01:07:20 AM »
Its a shame we live so far apart, I have 2 sets of original SC21 wheels, the ones I replaced with SC24 wheels, you could have a wheel for free, only the postage would be horribly expensive.

13
All Technical Issues / Re: Compatible driven sprocket
« on: June 23, 2020, 18:16:46 PM »
I think I see the most important dissimilarity, the inside is also divided in 4 respectively 5 parts.
I also looked at the usual donor, the VFR750 '87, but that has the same problem...maybe that complete wheel could be made to fit?
VFR750f '87

14
All Technical Issues / Re: Compatible driven sprocket
« on: June 23, 2020, 17:26:55 PM »
Those parts I have here, both my SC21 have SC24 wheels, and all though the sprocket carriers have different part numbers they fit both wheels.
But the 750 has a 18 inch wheel while the SC21 and SC24 are 17 inch, only different width, the 21 has a 3,5 inch and the SC24 a 5,5 inch wide rim.
I don't know what part#3 you mean, apart from the number of studs the shape of the carrier is roughly the same.
I don't have a 750 carrier to measure/compare with the one I DO have...#10 in the description.

15
All Technical Issues / Re: Compatible driven sprocket
« on: June 23, 2020, 13:35:25 PM »
Wouldn't it be possible that the rear sprocket carrier from another model, like a 1000, fit in the 750 wheel?
The 750 carrier has number 42610 mm4 000
The SC21 1000 has number 42610 mm5 000
The SC24 1000 has number 42610 MS2 000, which is a number not specific for a CBR1000F, which can mean that the part is used in more models, and the last 2 have 5 studs, IF the other measurements are the same it MIGHT fit the 750.
 Those from all 1000's have a diameter of 186 millimeter (18,6 cm), and as I know Honda, they use as many parts as possible in as many different bikes as possible! gasdrop

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