Messages

1

Engine and Bottom End / Detonation

« on: July 05, 2014, 08:32:39 PM »

It's got a pretty noticeable bang when it happens. It can cause serious damage especially on 2 strokers. It happens when the gas explodes early. Not the same as pre ignition ( which causes detonation)

2

Engine and Bottom End / best oil to mix with race fuel?

« on: July 04, 2014, 05:52:16 PM »

Maxima 927 for me 40:1 in 110 for me.  Will run this oil with non ethanol pump premium/a little race gas in the new ktm 250 I bought as well.  If you have ever torn an engine down with synthetic ran in it and the ones I have seen are dry as a bone no oil coating on any part I don't like that

I don't know what oil you are running or what the mix ratio is but I can tell you I personally have at least 25 or more engines running around on synthetic with no issues. I've had motors go 5000+ miles running synthetic.
 Ams is ok. I still have some in the garage but there for a cheaper more accessible options out there.
Especially for 10w-40 bike oil.

3

Engine and Bottom End / Cylinder repair ?

« on: June 17, 2014, 04:58:19 PM »

Probably just better as a paperweight... By the time it's all said and done I don't think it'd be worth the cash.

4

Lounge / whats one of the best tools in your shop?

« on: June 17, 2014, 04:56:22 PM »

I had a job several years back where I was grinding burrs off parts with a dremel, so I had a dremel in my hand probably three hours a day.  With all that experience, I became a dremel master, and it's probably my favorite tool in my shop.  From wire-brushing parts, cleaning electrical connections, drilling, cutting,sanding, grinding, polishing, you name it.

I had a pilot jet stuck in a Grizzly carb, the previous owner had stripped the slot on top.  A drill bit in the dremel and an easy-out fixed that problem.

I probably would've just cut another slot in the top and tried again...

5

Lounge / whats one of the best tools in your shop?

« on: June 17, 2014, 08:15:37 AM »

I think some of you are confusing most commonly used with best tool. :wink-new:

6

Lounge / whats one of the best tools in your shop?

« on: June 16, 2014, 03:51:08 PM »

I have a Makita impact that I use for smaller stuff use that about a hundred times a day.
I have a pretty loaded shop though, band saw, drill press, mig,tig,welding table, pedestal and belt grinder, balljoint- u joint upress,dremel, and a few thousand other hand tools.
Only thing I really need that I don't have is a large parts washer...I wouldn't mind a big arsenal dual stage compressor but the one I got works ok.

7

Lounge / whats one of the best tools in your shop?

« on: June 15, 2014, 09:17:22 PM »

I got the big one. It's still not that big, carbs have to be flipped over to completely get cleaned.
I run mine with mineral spirits in it, seems to work best of stuff I've tried.
No foam or anything but it does make an pretty annoying buzz.
I know people freak about rubber and mineral spirits and or parts cleaner but if it's not left for an extended period of time it doesn't hurt.
I've probably cleaned 200+ carbs with either one and never had an issue.
It also works pretty well on chains. Just remove the heavy crap before you put it in or it will take longer to clean.
If I remember I'll grab a pic...

8

Lounge / whats one of the best tools in your shop?

« on: June 15, 2014, 08:33:39 PM »

I'd have to say one of the best purchases I've made is an ultrasonic jewelry cleaner from Harbor Freight.
 I can stick parts in the cleaner and go do other stuff to get work done instead of cleaning parts by hand.
I clean a LOT of carbs and it is a serious time saver. I just pull the float bowl and cycle it a few times. Carb is done vs spending a half hour each carb pulling all the jets cleaning all the varnish and running a cleaner thru all the holes in the jets.
Let's me make money other places and I still charge the same for cleaning carbs.

9

Carburetor, Intake, and Exhaust / 86 ATC 250R jetting help

« on: June 15, 2014, 05:43:08 PM »

I'd go down to like  a 45 or 48 pilot and a 152 main and clip the needle on the  bottom. The pilot and needle overlap more than people think...

10

Pics and Vids / all done!!!! just got to break her in :)

« on: June 15, 2014, 05:30:53 PM »

okay so I took her out for a few hours to put some break in time on it.. snapped a few pictures of the spark plug  first pic I was in 4th gear about half throttle pulled the clutch and shut it off and rolled to a stop...  and the second pic 4th gear full throttle pass and pulled the clutch... jetting is at 195main 58pilot and DGH in the middle clip and 2 turns out!! what do you guys think?? it will idle till it runs out of fuel :wave:

I'd stick with right there if you want to play it safe, cardboard brown is a good safe color to not have to worry about jet changes every time the weather changes.  You could go a size or so leaner to get a bit more out of her but I personally wouldn't.

11

Projects / summer projects

« on: June 13, 2014, 07:17:04 PM »

Vf reeds aren't my favorite. I prefer boysen myself, don't know if they make em for the trx.
For some reason vf reeds on EFI sleds you have to crack the throttle a bit to get em to start.
Another thing that I don't care for about reeds in general is unless you are heavily modded they aren't worth jack.

12

Projects / summer projects

« on: June 12, 2014, 08:19:40 AM »

I got some junk cylinders to practice on. I did a little bit on one a while back. I also fix a lot of people's junk so cylinders aren't hard to come by.

13

Projects / summer projects

« on: June 11, 2014, 07:37:57 AM »

I figure I'll get some practice at least cleaning up the intake and exhaust ports. May not be as much gain as you can get but just having smoother air flow will help some.

14

Projects / summer projects

« on: June 09, 2014, 07:44:20 PM »

II've always been curious about how to tell how big to take the ports? I know you can buy the pre made templates but I also know there's a lot of guys who just do it by hand, do you go by hand or use software? I was thinking of messing with some junk cylinders I have from a snowmobile but just don't know how much is too much.

Are you doing anything with the side transfer ports?

15

Engine and Bottom End / CR 250 ignition

« on: June 01, 2014, 07:16:11 PM »

That is a really good place to start. Then keeps close eye on ground strap on the spark plug, keep the burn line in the center of the arch of the ground strap and u will be fine. If the burn line is to close to the base of the plug, retard the timing ever so slightly and recheck. If to close to the end of the ground strap. Advance ever so slightly and recheck. Should help.

I'm guessing you mean the electrode?

Not sure why it won't let me delete and combine posts either.