Harold Bawlzangya Racing

HBR - Harold Bawlzangya Racing - HBR

Too much time on my hands . . . Or not enough sleep?

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BlackCote wear

It was back in January 2011 that I applied BlackCote to my frame during a winter rebuild.  I noticed that when I was rebuilding the engine that my skid plate had wore off the BlackCote.  I think I have a solution for that problem.

After some wire wheel brushing and clean-up with acetone, this is what the bottom of the frame looked like:

BlackCote Results (2)

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After:

BlackCote Results (1)

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I have been very pleased with how durable this finish is.  I haven’t found a chemical or solvent that has removed or softened it.  As as long as an aluminum plate isn’t vibrating against it, it has proven very durable.  I don’t have a frame guard on the left side of the bike due to the kick stand, so this is what the frame looks like from boot rub:

BlackCote Results (3)

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I see that POR-15 has discontinued the BlackCote and is replacing it with Top Cote.  I don’t remember aerosols being available three years ago when I bought this stuff, but I will be sure to try that and not risk screwing up my paint gun.

Rear brakes – fluid flush and new pads

newrearbrakes (10)

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newrearbrakes (12)

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newrearbrakes (4)

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newrearbrakes (5)

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Engine rebuild left overs

All the stuff that was getting thrown out from the engine rebuild:

RebuildCarnage (2)

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RebuildCarnage (3)

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Who needs a flywheel puller?  Some smart person decided that they would try to pry it off.  Problem is it didn’t work and the flywheel was still on and the case was ruined:

RebuildCarnage (4)

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RebuildCarnage (1)

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Carb cable boot – nothing like OEM

Motion Pro may make good cables, but their boots – not so much.

Motion Pro carb cable boot:

CarbBoot (2)

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The inner diameter is way too big and doesn’t “catch” on the carb cap and just slips off:

CarbBoot (4)

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OEM carb cable boot, much smaller diameter:

CarbBoot (3)

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Took some effort to get it on:

CarbBoot (1)

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OEM crank

OEM crank (4)

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OEM crank (5)

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OEM crank (3)

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OEM crank (6)

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OEM crank (2)

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OEM crank (1)

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Clutch lubrication

The aftermarket baskets are going to do a better job with oil flow:

OilFlowComparison

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And with all the time I’ve spent taking the clutch in and out, I didn’t want to overlook the inner hub.

The stock inner hub has just 4 oil holes:

Hub 4 holes

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I kept things reasonable and added 12 more holes (16 total) that were the next drill size up from the factory oil holes:

Hub 16 holes

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Rekluse EXP – heavy wedges

When I was researching things on the Rekluse site, I noticed that the kits they had for several of the small bore engines came with heavy wedges.  The EXP I bought for Version 2.0 at $203 was a good price to begin with, but what made it even better was that it came with a set of regular and  heavy wedges:

heavywedges (2)

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After opening the EXP up:

heavywedges (5)

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Here is the heavy and regular wedge:

heavywedges (6)

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The heavy wedges weigh 10% more than the regular:

heavywedges (4)

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heavywedges (3)

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I kept the lightest springs (at least for a YZ 125) in:

heavywedges (1)

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I will see in a few days what kind of difference this makes.

Rekluse – rate of wear

After 3.6 hours on Version 1.0, the ATF wasn’t totally black and this was at the bottom of the oil I drained out:

ATFafter3.6hours

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With the hour meter at:

EXP for sale (2)

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I’ve installed a new set of frictions and steels with Version 2.0:

DSC07466

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Since I will be keeping version 2.0 for a while, I thought I would monitor how much the frictions wear over time.  I soaked the frictions and EXP overnight in ATF.  I then marked two of the frictions so I could keep track of them.

 

#1:

NewClutchSpecs (2)

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NewClutchSpecs (3)

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EXP:

NewClutchSpecs (12)

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NewClutchSpecs (13)

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And #3:

NewClutchSpecs (4)

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NewClutchSpecs (7)

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#1 is the first friction in, the EXP is #2 and #3 is the third one in:

NewClutchSpecs (1)

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The plan is after some more hours go by, I’ll pull those out to re-measure.

Rekluse EXP Test

The big day for me was finally here where I could test the Rekluse EXP out.  For the areas available to me, Highland Park is a great place to test something like an auto-clutch due to the variety of terrain.  Many of the trails are fast flowing, but challenging.  Then there are the slow 1st-2nd gear trails and plenty of hills.

So the big question, how did this thing perform?

EXP install (6)

It worked perfectly – I couldn’t have asked for anything else.  The EXP stayed locked up when it should and slipped when it was needed.  I couldn’t find a single instance where it behaved unexpectedly.  There are three categories that I was able to test things out:  fast moving trails with abrupt 90 degree changes in direction, steep/long hills and slow moving trails littered with ruts, roots and rocks.

1.  On the fast moving trails, I never once stalled the engine when I had to hit the rear brake to make the 90 degree change in direction.

2.  The EXP did awesome on the hills.  In each one of the below pictures, I stopped at the bottom of the hill to take the picture.  When I put the camera away, I started the bike up and went up the hill – no running start.  If I would have tried the same thing, but manually clutched it, the end result wouldn’t have been pretty.  As usual, the hills don’t look as bad in the pictures. Lot’s of people say it about auto-clutches, but it was like cheating getting up the hills.

Rekluse Hill Test (7)

Rekluse Hill Test (6)

Rekluse Hill Test (5)

Rekluse Hill Test (4)

Rekluse Hill Test (3)

Rekluse Hill Test (2)

Rekluse Hill Test (1)

3.  On the slower, more technical trails is where the value of the EXP would really come into play.  I only went on two trails that were closer to 1st and 2nd gear only trails.   Lots of deeps ruts, changes in direction or massive amounts of roots and rocks kept the speeds low.  Never stalling and just being able to focus on which line to take and keeping the bike upright made these much easier and enjoyable to navigate.

Rekluse Tight Trail Test (1)

Rekluse Tight Trail Test (2)

Rekluse Tight Trail Test (3)

Rekluse Tight Trail Test (4)

Now that I’ve proven to myself that the Rekluse EXP works as advertised in the KDX, I can confidently sell it to help off-set the costs of the two-crank engine rebuild.

 

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