250-500cc WR 360 Mods tips n tricks

Yup they dont fit you lazy bastard, there you all happy now?

yup order is restored

my old 92 360 that I sold my brother that he sold is available if someone is looking for one
it has a DynoPort pipe and PVL ignition, recent plastic when it was sold and he redid the top end fresh
if anyone is interested $1000 to me and I will pass that on, it needs tires and ridden
it was a great bike but i did not need 4 360's
had a 92,93,98,99 still have the 93 and 99

http://stockton.craigslist.org/mcy/5208010439.html

Thats a good deal, good luck.
Hows that pvl working for it i heard theyre a nightmare to set up.

not my bike anymore just trying to help the seller

If i was in the states i would defo be interested.

Reviving an old thread here. 2Premo, can you tell me what year and model bike you took the Brembo master cylinder from to add to your '93s front brake? The front brake on my '93 is a little spongy and I am thinking of upgrading the master cylinder like you did.

Also, could anyone direct me to what the Wallybeans airboot mod is?

Thanks!

wow been a while since I did it, but, from memory the master was off an 88 Husqvarna, new in a box and looked like it would fit, but the hose did not, again from memory, the hose is also from an 88, that being said I personally felt it was an improvement in braking and brake lever feel
I will look at it this evening and if I was wrong will correct the post

Can any of you 360 gurus tell me what the Wallybeans airboot mod is? I did a search, without success..

porting out the boot where it goes from the 38mm hole the the open area before the reed

Yup as stated it's a quick job.
Just blend it in to the intake nicely and your good to go.

I did a compression reading on my 360 last week and sure enough, I think my hard starting is due to low compression - about 120psi. It will only start with the throttle wide open. I had originally been thinking that the pilot circuit needed to be cleaned and that was causing the hard starting but after inspection, the carb looked spotless when I took it apart for a cleaning. I thought it kicked over much easier than most of my other bikes, so that probably should have clued me in right off. Since I am going to need to do a new top-end, I am wondering if any of you can comment on what a good squish clearance might be on the 360? I've read that a few members have played with theirs but haven't read any results of those efforts. The recommended squish clearance of 2.6mm (.102") listed in the manual seems kind of large to me based on the other bikes I have done squish mods on (2 KTM 300's)..
Off the top of my head, I was thinking maybe .060" to .070" would be a good squish clearance to get a little more bottom-end boost. I'd like to be able to run on premium pump gas and not have to run race gas. Any thoughts on this guys?

It was a few years ago now but I took mine down to .55 if I remember correctly.
Your issue may just be a set of rings.
The 360 doesn't actually have high compression when freshthink mine was 150 psi
But 120 sounds low.

I will do a search for my squish clearance thread.
There you go Brian bush

http://www.cafehusky.com/threads/squish-numbers-on-a-360-with-ktm-rod-kit.80016/

Ya Juicypips, the cylinder liner looks good. Cross hatching still noticeable. Maybe I just need a new set of rings or perhaps a piston and rings (I haven't taken the cylinder off yet to inspect the piston, just inspected the cylinder by moving the piston to bottom dead center). Should know more soon.. By the way, does your bike run well on premium pump gas with the 0.55" squish clearance? My KTM 300's do at 0.55" squish but then again, this is a different animal.. Many thanks!

all i can add is that my 95 with fresh piston was 160 psi, kicking with throttle wfo.

my 93 started fine with low compression just lacked bottom, well power across the range
but,, started fine anyway

the squish of different brands is not a good comparison due to head shape
too close of a tolerance could lead to damage, George Erl said he lowered the squish to preserve the engines
he did my 93 and it lasted quite a few years, but he said tight squish is hard on the rod and generally the bottom end
by the way KTM uses typically lower compression as a two stroke makes dynamic compression by design and they are not dogs

I only use 97+ Ron I'm sure it would be fine on lesser grades tho but that's due to the lectron. t
If your going to cut squish band you may have to recess the dome into the cylinder like I did.
No issues so far she's still pulling like a freight train.
Yah higher stress on parts n all that but I honestly didn't think the original clearance was working as well as it does now!

Thanks again Juicy, can you elaborate a bit on recessing the dome into the cylinder? I'm not quite certain I fully understand..

to get the correct squish height I had to remove more material than was there.
There's like a 20 thou lip of metal before the dome starts, I had to remove 40+ so I took that off but left the dome alone.
Simple job in a lathe.