Messages

1

Suspension and Chassis / Help identifying swingarm and A-arms!

« on: May 11, 2016, 09:31:48 AM »

Thanks guys!

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Suspension and Chassis / Help identifying swingarm and A-arms!

« on: May 10, 2016, 10:38:13 AM »

Hi guys,
Hoping someone can help ID my swingarm and front A-arms that came on my 88 250r. I've started trying to sandblast the rear swingarm (was silver vein powdercoat). I think it might be a Laegars?

And here are the control arms. I was told they are +2, and assume standard travel. Both upper and lower tube OD measures Ø1.0"

Had trouble getting a good eye to eye measurement so pushed them up against the wall (ie: subtract ~1/2" from OD to center of inner mount?)

These are the stock arms that came with (I believe) for comparison:

I'm replacing the stock shocks, and repowdercoating and want to make sure the shocks/geometry are spec'd out right!

Thanks is advance!:star:

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Projects / ATC250r "Not A Project" Project

« on: November 02, 2015, 04:56:36 PM »

Been awhile; thought I'd post an update:

It was a mad thrash but I was able to get down to Spinreel dunes (after pulling an all nighter with last minute issues). Good news is the weather was great and had a good time with great people. Bad news is I was plagued with an issue where the trike wouldn't hot start for the life. Here's a long vid my cousin made of the trip: you only see the three wheeler at the end on the astroturf "carpet of shame"(https://www.youtube.com/watch?v=X-tFltPVwKo&index=3&list=WL)! i think it might have been way too rich, plus wasn't able to sustain idle (later was able to accomplish this taking the idle screw spring of and the plastic screw is almost all the way in). I would get it started and it seemed to run great, but my GF stalled her trx a short way from camp; I got off mine to start hers, and then never could get it restarted (tried swapping plugs, etc). Eventually after fighting for an hour finally got it towed back carb settings are/were DEJ needle 4th from top, 52 pilot, 182 main and running 110 with maxima 927 32:1. Seemed very rich/smokey. once home got to idle with pilot drop to 50 and idle speed screw all the way in. Plus lookin better with some snazzy decals:


Note the custom Kickstarter extension tube to clear the high offset pipe! :congratulatory:

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Lounge / SRS....So who all have I done shocks for? And what were they on?

« on: October 19, 2015, 04:04:45 PM »

Evan did a revalve/respring on the rear shock for my 85 atc build:

 Haven't had much time on it yet but love the way it feels thus far. Really happy with the service!

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Projects / ATC250r "Not A Project" Project

« on: September 23, 2015, 10:42:45 PM »

Well, I'm glad to report it wasn't interference (thank goodness). I made a kicker extension so I could get on it harder and got her fired up! Thanks to all for the help, still have more finish work but feels good to be on the homestretch

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Projects / ATC250r "Not A Project" Project

« on: September 23, 2015, 05:43:40 PM »

Oh god, I just had a horrible revelation as I'm sitting at work....:05.18-flustered:


I can't stop thinking why I am having a hard time starting this after the helpful feedback. I try to find TDC with the kicker but it almost seems like 3 distinct resistance areas close together.....I can't get a full kick out of it.....

When I was putting the cases together I did note the interference with the hot rods connecting rod at the 10:00 and 2:00 position. I took my dremel and sanded clearance in these areas wide enough for the thickness of the rod (or half that in each case) plus maybe 0.060 a side. I installed the crank into the left case and pulled it all the way in with the crank puller. At this point I verified the "trough" clearance was centered about the rod. I temporarily installed the cylinder/piston and rotated the crank and all was well (even with the right case half put on).

Now the hindsight moment:

After I had the case halves together for good (cylinder, piston head, etc) and the motor in the frame, I was installing the primary drive gear onto the crank and torquing to the spec on the manual. In "Hindsight" it came up to the torque value softly (ie: bolt was rotating without sharp increase in torque) prior to ultimately hitting the mark. I'm thinking that this was pulling the crank from the initial installed position (tight to the left case half) toward the right case half until it sucked up against the bearing. I'm not sure how much this may have moved (didn't seem like too much at the time), but wonder (god dare I say it) if I didn't notch the clearance wide enough and the rod is smacking somewhat into those areas on the right case? Also, I used regular oem crank bearings; on the right side I heated it with a heat gun prior to putting the case half on, there was some drag from interference to the hot rods crank but not bad.

   -How much left-right clearance is supposed to exist between the crank shoulders and the sides of the bearings once assembled?
   -Is this normal for the crank to move ultimately being tight to the right bearing?
   -When installing the primary drive gear, should I have stopped shy of the torque value to prevent pulling the crank??

While I don't know this for sure (I'll know in a couple hours) I have a bad gut feeling. I feel like a total idiot!   :culpability:

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Projects / ATC250r "Not A Project" Project

« on: September 23, 2015, 02:27:05 PM »

I kick with my toe with boots turned part way off the kicker...

Thanks Hickwheeler and Skeans. That's encouraging  that it can at least be done. I think alot of the problem is the compression; granted I'm only 5'10 130lb so don't have alot to throw at it. Trying to perfect my technique (ie: start from TDC) but was unable to start last night either. I wonder if it will be easier once started for the first time? Tonight i will try pulling the plug to make sure it turns over freely, then wonder if I can tow start it if all else fails.

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Projects / ATC250r "Not A Project" Project

« on: September 22, 2015, 11:51:03 PM »

Will do!

well, tried again unsuccessfully to start it this evening:confusion:. I'm starting to get frustrated. I may have an idea for the clearance issue although the compression is insane. Tomorrow I will see if I can push start it once I get the chain on.

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Projects / ATC250r "Not A Project" Project

« on: September 22, 2015, 02:27:26 PM »

what riding style was your motor ported for? what is the final size? just curious as 10 pdls on a short atc may be a bit over paddled?

Motor is 363 with powervalve; arlen set it up for play duning for me. That being said, I agree the paddles are a bit much especially without a longer swingarm; they're just what I happend to end up with floating around. Also why the rims are chewed up and badly oxidized!:wink-new: I also have an 8 paddle set of skat track edges so I'll probably bring both if I can pull this trip together.

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Projects / ATC250r "Not A Project" Project

« on: September 22, 2015, 10:42:00 AM »

Okay, down to the wire trying to make a last chance maiden voyage to spinreel this weekend. this has taken way longer than i thought but I'm really close.

Got the wiring done aside from a mount for the CR250 cdi box:

Then had to do this to the DG grab bar to clear the tail light brackets?!:mad-new:

But finally got to filling the radiator, oil and gas. then starting working on mounting the pipe. No surprise that the skid plate wouldn't work without moderate surgery so pitched that to the side. Was a little bummed that the bracket/hanger supplied didn't mount up right. Had to make a spacer and elongate the slot to get it to work eventually.
 
So now it looks like this:


Then at 9:00pm last night I tried to see if it would fire up. That's when I discovered 2 things:
1: This has ALOT of compression!
2: While the kickstarter clears the pipe, there is hardly any room for your foot!
 
So unfortunately I didn't get it started; will try again today in daylight. Curious if anyone else has any tips/tricks for this? I hate the thought of having to kickstart it with my toes (as that's all there is room for) especially if it ever kicked back?

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Projects / ATC250r "Not A Project" Project

« on: September 11, 2015, 10:28:38 AM »

Thanks for the encouraging words fellas!

Been a bit since I updated. I got the hinson basket setup and installed. Had to clearance the primary drive gear as noted in instructions. Powder coater got a little heavy on the frame which made install a pain but finally got the motor in successfully!

then I finally got my configuration together for the rear caliper swap to center the rotor in the caliper. So I went to install the lonestar anti-fade onto the lonestar axle and discovered my next "challenge". There is serious interference fit between the axle splines and the internal splines on the anti-fade. I was pissed needless to say after spending the $$ to have such a fundamental issue with new hardware. Bought both pieces at the same time. It was so bad that even though I lubed the splines with anti-sieze, I had to slide a abs pipe over the axle and bang it on (barely) with a 5lb hammer till I could get the snap ring installed and use the threads to jack it the rest of the way on. Not sure how I'm ever going to get it off; maybe with a torch and chopsaw and I'll sent the pieces to Lonestar:mad:

So here is how she sits now. Still need to do leakdown check, then carb, intake pipe and hookup rest of ignition. then maybe I can fire up and see if it all works!:)

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Projects / ATC250r "Not A Project" Project

« on: August 31, 2015, 03:35:44 PM »

Got a good amount of progress done this weekend on the motor, although not without it's challenges. Mainly i didn't notice the clearancing required to run the +4 hotrods crank until I had already pressed the crank into the left crankcase:disillusionment:. Luckily i caught it before getting the whole thing together, so I disassembled and ground clearance and then rechecked with the cylinder/piston mocked up to make sure it was good.


But finally got to this point:


And got the rest of the new plastic installed:

:eek-new:

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Projects / ATC250r "Not A Project" Project

« on: August 26, 2015, 10:51:15 AM »

Little more progress, got the stock rear brake linkage re-zinc plated. Was going to powdercoat the brake arm but thought I'd see if I could buff the old chrome back to life and it worked alot better than I thought. Got the hinson basket and ground the rivets off the old one to get the gear.

I'm going with a crf450 front caliper conversion on the rear, so I had to design up a brake stay. First I made a template and then had it machined. Fits great but need to thin the area where the caliper mounts slightly to center the caliper on the rotor. But I'm having trouble getting the lonestar anti-fade to slide all the way over the splines on the axle; Idon't want to get it stuck but feels like there might be interference on the splines (ordered these both at the same time). Has anyone else had this problem?

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Projects / ATC250r "Not A Project" Project

« on: August 22, 2015, 10:16:31 AM »

I don't know why that last post previews the pics upside down, but they show right side up when opened?:concern:
Course I do have my paddles on backwards....jeez! :rofl:

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Projects / ATC250r "Not A Project" Project

« on: August 21, 2015, 10:48:03 PM »

Thanks for the offer, I ordered the puller but may hit you up if it takes too long!

Got some NOS tank scoops, as well as maier front and rear fender. I did a test with the razor blade scraping routine on the oxidized tank. Worked we'll but I can quickly see it makes a mess so I'll take it off to really get at it.

Also got some clutch hardware in. The basket is the wOrks style, and includes plates. Not sure what springs I should run though? Also have the 89 upgrade hardware so I should be almost set.

Picked up a 98 cr ignition, I kept loosing on the later year versions on ebay. Anyone else have a pic/suggestion on where and how to mount? I was assuming next to the steering stem, might be a little thick without separating out the components a little?