Author Topic: "Revive" (1985 K100 Street Scrambler Build, not a Cafe Racer)  (Read 443975 times)

Offline Laitch

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Re: Triple S
« Reply #175 on: June 26, 2018, 04:32:40 PM »
Ahh... damnit! I’ve just treated the tank with the POR15 sealant... the can says, wait for it, a whole 96 hours drying time.... there are 61 hours until inspection. . . . The most annoying part is not being able to just walk away from it as I have nothing else to ride.
Ahhhh.... I wasn’t sure I needed one. OK, I’ll go study that thread with my new found 96 million years of tank sealant drying time free time I have.
This is as exciting as it gets in Scotland since the Reivers were quelled.  :giggles
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline Skunky

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Re: Triple S
« Reply #176 on: June 26, 2018, 04:53:46 PM »
Quote from: Laitch link=topic=10875.msg99 :boxing: :boxing:211#msg99211 date=1530045160
This is as exciting as it gets in Scotland since the Reivers were quelled.  :giggles
[/quxote]

Laitch If you think they were quelled you haven't been out in Glasgow on a Saturday night  :boxing:
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Rebuild it and they will come..
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Offline Laitch

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Re: Triple S
« Reply #177 on: June 26, 2018, 06:52:21 PM »
If you think they were quelled you haven't been out in Glasgow on a Saturday night  :boxing:
I'll take your word for it, Skunky. I've run out of slots on my bucket list.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline DJEwen

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Re: Triple S
« Reply #178 on: June 27, 2018, 07:38:03 AM »
Ah, that lack of dial illumination is not apparent on the video because of the high ambient light.  Yes, I think there should be a backlight and I believe it is supplied from B-Red.  Try to power the B-Red (switched 12V) and Brown (unswitched 12V) directly from the battery temporarily.  If the backlight comes on, you have a wiring problem or a BEP 3.0 problem.

Yes, the grey wire idea applied to BEP 2.0, but was solved in BEP 3.0.  It's better to use the BEP outputs for RPM and speed since they are properly conditioned.

RBM - The error is my own. I have been terminating B Purple (Acewell backlight) to BT Backlight Check on the BEP - This is in fact that, the back light check function and not a backlight output. This does leave no specific port for the backlight. I imagine the fix for this would be to twin terminate to SWP Switched power on the BEP along with B Red Switch Key from the Acewell, this would give illumination when the ignition is in the on position I suspect?

In regards to the properly conditioned rpm and speed circuits, the Acewell appears to be reading road speed correctly as the rear wheel rotates while the bike is on the centre lift however when opening the throttle the speedo needle erotically paces the Acewell has an option to read either or Speed or RPM in the analogue or digital displays and vice versa - this is likely a function I need to determine myself within the Acewell settings.
  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline DJEwen

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Re: Triple S
« Reply #179 on: June 28, 2018, 04:59:09 PM »
The tank sealer has worked a treat so far. I got the bike out and around the block tonight, she felt great!! I’m rather happy, really comfortable riding position, responsive, brakes felt great for being prehistoric compared to today’s standards, what a fantastic machine!!



All seemed well, until I stopped, put her on the side stand and discovered oil all over the rear wheel. Yep. That’ll be an MOT fail. The final drive was the only part I never split for paint/powdercoat due to fear of shims etc (I know that’s a debate) I had the painters paint it as a complete unit. The output seal on the final drive is finished. Probably explains why there was masking tape labelled “no oil” on the FD when the bike was purchased. Yes, yes.... schoolboy error... the only seal I didn’t replace was the one that leaked.



I’ll postpone the MOT by a week, a new seal has just been ordered.....

Close, but no cigar today, folks.
  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline Skunky

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Re: Triple S
« Reply #180 on: June 28, 2018, 07:22:50 PM »
 Never mind mate. I think you'll still beat me to the finish. Looking Damon fine too.
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Rebuild it and they will come..
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Offline Laitch

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Re: Triple S
« Reply #181 on: June 28, 2018, 07:52:14 PM »
I’ll postpone the MOT by a week, a new seal has just been ordered.....
You're resourceful, DJ, but you might not have seen this yet.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles
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Offline DJEwen

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Re: Triple S
« Reply #182 on: June 30, 2018, 05:40:00 AM »
Never mind mate. I think you'll still beat me to the finish. Looking Damon fine too.

Yeah, I’m not getting too upset about it. I hadn’t realised we were racing, Skunky! Thanks, she’s scrubbed up alright!

You're resourceful, DJ, but you might not have seen this yet.

Studied start to finish, Laitch.



This wasn’t supposed to arrive until Monday but look what just landed on my door mat:



[Grabs garage keys]

  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline DJEwen

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Re: Triple S
« Reply #183 on: June 30, 2018, 01:01:39 PM »
I’m not surprised it was leaking, it was in a fair mess, packed with grit and general road grime which has led to some corrosion. I’m not sure why I was scared of this task, it was a piece of cake.









I cleaned up the corrosion as best I could on the abrasive wheel and finished with wire wool. There is some pitting left behind.



Installed he new output seal along with a new case o-ring. Torqued up, went for a road test, no leaks.



Now it’s MOT ready....
  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline DJEwen

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Re: Triple S
« Reply #184 on: June 30, 2018, 01:10:05 PM »






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Offline DJEwen

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Re: Triple S
« Reply #185 on: July 01, 2018, 09:23:07 AM »
First Bath.

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Offline Laitch

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Re: Triple S
« Reply #186 on: July 01, 2018, 09:59:20 AM »
First Bath.
First comment after first bath—Does anybody know why I can't start my bike?  :giggles  Not in this case, of course.  :yes
  • Along the Ridley in Vermont.
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Offline DJEwen

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Re: Triple S
« Reply #187 on: July 01, 2018, 10:01:33 AM »
First comment after first bath—Does anybody know why I can't start my bike?  :giggles  Not in this case, of course.  :yes

I was scared to put the hose anywhere near it. Fortunately, she still lives :D
  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline oneplustwo

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Re: Triple S
« Reply #188 on: July 01, 2018, 12:07:33 PM »
Looks great, congrats!  Quick question on the POR15 sealant.  Did you go through all their "pre-sealant" directions?  They recommend their own cleaner and metal prep products.  Or did you just rinse and dry with water and then use the sealer?

Any tips otherwise?  I assume you removed all the components from inside. How did you seal off the outlets?
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  • 1990 K75S (in 1000 pieces)

Offline DJEwen

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Re: Triple S
« Reply #189 on: July 01, 2018, 01:12:04 PM »
Thanks very much. I’m pleased with it.

Nope, not one of them,  I think they’re all a gimmick, however though, I guess it depends on the internal condition of your tank. My tank was immaculate which made it surprising that it failed in the first place.

I drained my tank, pulled all components and left it out in the sun to evaporate off the fuel remains.

I then disconnected the return fitting, it’s advisable to purchase a new o-ring for this. Cut a strip of rag and pressed it up through the hole in the return stanchion using a 90 degree pick to ensure the sealant never leaked through.

Put some electrical tape over the end of the outlet pipe within the tank where the fuel pump/filter discharge connects to.

I bought a full pint of the POR. Pour the lot in, rotate the tank about. I plugged the top inlet fill hole with newspaper and rotated it upside down etc etc, made sure I had full coverage- spend time doing this.

Then I drained what I could via the early 85 sender port, rotated different positions to drain all dead legs and trapped areas, up ended the tank and siphoned the excess after allowing it 30min to run off using a cheap eBay fuel siphon and a turkey baster. I then rotated it the other way and put it in my airing cupboard overnight. Spend time draining properly.
Make sure to pull the slither of rag you stuffed in the return port stanchion hole before leaving it to dry, if it goes off with the rag in there, you’ll not get it out once it’s hardended.

The can said 96hrs drying time, I suspect this was to cover customers who didn’t drain properly. The following morning it was dry but I gave it 48hrs for good measure and it’s working a treat now.

Hope this helps and good luck.
  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline oneplustwo

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Re: Triple S
« Reply #190 on: July 01, 2018, 01:20:06 PM »
Excellent, super helpful!  I'm debating whether or not to go through the effort since my tank seems to be fine.  I'm also planning a brushed aluminum finish so no paint to worry about if I absolutely need to do it later.  But perhaps better to just take care of it while it's apart and drained and such.

Separate question for you... did you fabricate the license plate holder yourself or is that a purchased item?  I'm planning something similar.  Any details would be welcome!

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  • 1990 K75S (in 1000 pieces)

Offline DJEwen

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Re: Triple S
« Reply #191 on: July 01, 2018, 01:32:48 PM »
Excellent, super helpful!  I'm debating whether or not to go through the effort since my tank seems to be fine.  I'm also planning a brushed aluminum finish so no paint to worry about if I absolutely need to do it later.  But perhaps better to just take care of it while it's apart and drained and such.

Separate question for you... did you fabricate the license plate holder yourself or is that a purchased item?  I'm planning something similar.  Any details would be welcome!

Don Eilenbergers Law #7: Most things work until they break. Then they’re broken.
If you’re going though a strip down, I’d do it. If it’s for assurance, wait until you need to.

Licence plate holder was initially found on cafe4racer for €54 euros. I pulled the image, done an reverse image search on google (as I do with nearly everything, which has saved me over £1000 on this build BTW) found their supplier and got it delivered for £8.50. I threw the bolts and had the plate frame welded to the bracket for flushness then sent it to the powder coaters with everything else.  :2thumbup:



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  • 1985 K100 'Revive', 1987 K100 LT

Offline Latvietis

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Re: Triple S
« Reply #192 on: July 01, 2018, 01:50:19 PM »
Super great tips mate! Everything on that bike looks fabulous! I will need that sealant, because my tank has been welded but after some time there showed up something like oil on one side.. later showed up on the other :(
I’ll ask you about it later!
By the way.. your beautiful job may affect my future build that is how beautiful it looks!
Cheers!


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Offline DJEwen

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Re: Triple S
« Reply #193 on: July 01, 2018, 02:57:58 PM »
I’m in need of help, please. Calling all aftermarket, ideally Acewell speedo, beginner, intermediate and experts.

All functions except RPM and Speedo are working correctly on the Acewell CA85.

Again, this is by far a strong point of mine. I understand the BEP 3.0 and Acewell are supposed to be “conditioned” for both functions to work correctly.

Speedo: My understanding is the Acewell CA85 can optionally do either Speedo or RPM via the analogue dial. I believe it’s currently set to speedo. When running the bike up through the gears it appears to be reading a really high speed. The diameter of the rear wheel and tyre is 26” giving a rotational circumference of 2075 per single rotation. I punched this value into the Acewell computer (as per instruction) but the speed is still miles off, see attached video. The bike is off-the-clock rotating in 3rd gear while on the lift. Does this need some form of additional circuit?

RPM: I can’t make heads or tails of the Acewell instructions, they aren’t bad but grammatically quite confusing.
When moving through the mode menu there is no RPM setting. I’m struggling to understand if the Acewell is saying the Trip 2 setting can be switched to RPM and then set? Does anyone have any experience of this? I read a few times on another forum that the Grey wire (for wrapping round spark plug lead) should be terminated to the BEP RPM instead of the yellow, but this was supposed to be conditioned?

Below are the Acewell instructions for the CA85 and a short video of the issue.

Thanks in advance,







 

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Offline DJEwen

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Re: Triple S
« Reply #194 on: July 02, 2018, 01:21:20 PM »
She passed the MOT with zero advisory’s. :yes



She’s also now sporting a classic pressed black numberplate.



A couple of issues I’ve noticed whilst riding to/from work:

- Twice whilst selecting neutral at the lights I could then no longer get first to move off without shutting down and re-starting (I used to get this all the time on the KTM, I’m probably too rough).

- The speedo and rev counter are useless, I’d really appreciate some help here in terms of the requirement for a conditioning unit or not and which pick-up values if any should be used.

- I’m now getting a neutral light in 1st, Neutral, 2nd & 3rd, I suspect this is since washing the Bike yesterday :dunno2: I did seal the TGPI unit itself but didn’t seal it to the gearbox so water could have got in there or potentially the plug connector?

- The suicide stand is infuriating, I need to mod this! I understand the logic in this but still, terrible idea.
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Offline Laitch

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Re: Triple S
« Reply #195 on: July 02, 2018, 04:58:10 PM »
She passed the MOT with zero advisory’s. :yes
She’s also now sporting a classic pressed black numberplate.
:clap:
  • Along the Ridley in Vermont.
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Offline rbm

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Re: Triple S
« Reply #196 on: July 02, 2018, 07:35:55 PM »
She passed the MOT with zero advisory’s. :yes
She’s also now sporting a classic pressed black numberplate.
Congratulations.

- The speedo and rev counter are useless, I’d really appreciate some help here in terms of the requirement for a conditioning unit or not and which pick-up values if any should be used.
Did you get a replacement BEP 3.0 and install it??

- I’m now getting a neutral light in 1st, Neutral, 2nd & 3rd, I suspect this is since washing the Bike yesterday :dunno2: I did seal the TGPI unit itself but didn’t seal it to the gearbox so water could have got in there or potentially the plug connector?
Yes, sounds like the TGPI switch got wet.  It should sort itself out in a few days once it gets dry.  What's happening is that all the contacts are being shorted together to ground in all gears.
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Offline Martin

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Re: Triple S
« Reply #197 on: July 02, 2018, 07:41:53 PM »
When you say suicide stand, I am presuming you mean the stand retracts when weight is taken off it. OEM has a couple of good solutions if you revert to OEM if that is still possible.
Regards Martin.
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Offline DJEwen

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Re: Triple S
« Reply #198 on: July 03, 2018, 06:58:12 AM »
Congratulations.
Did you get a replacement BEP 3.0 and install it??
Yes, sounds like the TGPI switch got wet.  It should sort itself out in a few days once it gets dry.  What's happening is that all the contacts are being shorted together to ground in all gears.

I now have the replacement BEP 3.0 but have yet to install it, you will see from post #179 that I believe the backlight issue was caused my choice of termination point. The main issue now is the really erratic speedo, the speedo reads over 120mph when I'm doing circa 30mph, this is naturally clocking up a lot of miles too.

I thought that may be the case with the TGPI, I look forward to it drying, I had a schoolboy error yesterday and nearly dropped the bike.


When you say suicide stand, I am presuming you mean the stand retracts when weight is taken off it. OEM has a couple of good solutions if you revert to OEM if that is still possible.
Regards Martin.

Correct, as OEM intention. I'm going to perform the reverse spring leg mod to stop this form happening. That's a good shout with respect to other OEM options. My parts bike still has the clutch lever retract mounting, I may look to install this.
  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline Laitch

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Re: Triple S
« Reply #199 on: July 03, 2018, 07:58:30 AM »
My parts bike still has the clutch lever retract mounting, I may look to install this.
I recommend that option. It can be set to retract with varying degrees of lever pressure but I use it as a reminder to kick up the stand—if I haven't done that already—when the lever meets first resistance. It's a useful safety feature considering I've read comments from competent riders describing how they have been hospitalized after driving off with the side stand down.

The complaint with that feature is that if an alcohol-impaired Reiver climbs onto your bike to play make-believe, pulls in the clutch and goes vroom-vroom (or the Scottish equivalent) then dismounts, the bike will go down because the side stand is up.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles