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Need Help Jetting a '94 FE350 for the Sawtooth Mountains

Joined Feb 2009
10 Posts | 0+
South Arkansas
I'm starting to get used to my freshly rebuilt '94 FE350. I have put a lot of time on it clearing trails, where I'll ride a while, and then get off and cut limbs & vines for a while, but it's Husqvarna clutch keeps it from being a really good "finish" trail working bike (putting up and taking down arrows for the enduros and hare scrambles). I really like the engine size and how the power builds. I intend to eventually make this my dual sport bike.

The engine starts easily, and runs pretty well. The only issue that I am aware of is a tendency to bog when I apply the throttle too quickly (from closed to WFO). Occasionally, when faced with a mostly vertical rock ledge or big log jump, I will get excited and twist it so quikly that the engine will flame out completely.
As long as I roll on the throttle, this isn't an issue. The power is smooth, strong, and progressive.
I figure it's more a problem with my "two stroke wrist", but "What do I know?". (My primary bike is a 2006 Gas Gas DE300, and, except for a 20 month stint riding a '94 Suzuki DR350, I've mostly ridden large bore two-strokes for the last 35 years.)

The reason that I'm asking for help, is that I am scheduled to ride in Idaho with some friends the first week in August. I'd like to take the FE with me as a back-up bike, but am clue-less as to the jetting I will need to run in this Del Orto carb.
I live at 120' above sea level and usually ride at elevations between that and 3000'.
In Idaho, we will be camping at 4500' and riding at elevations that normally top out just below 10,000'. Most of the trails stay at 8500' or below.

I do okay with two stroke jetting, and Mikuni and Keihin carburetors, but in this case, I really am a newbie. The carb is, according to what I've read on this forum, the older style Del Orto with the "flip up" type choke lever.

Can someone please give me some jetting specs for riding at Idaho elevations, and point me to a good place to purchase jets and needles in the US?

Thanks in Advance!

Jim Cook
 
Hi, Jim....
If you are still using the OEM Dellorto, try here for parts : http://www.herdan.com .They are in Port Clinton, PA. Can do online orders or via mail. Telly is 1-610-562-3155. Far lower prices than Sudco or Motorcyclecarbs.com, and there is normally a gal on the phone that is a crackerjack with Dellorto parts.
Also try here : http://www.shop.bevelheaven.com/SearchR ... egoryID=41. They are in Concord, California and are a Ducati shop, but the guy that runs the Dellorto side has a full range of services, up to and including doing complete o/hauls on Dellortos. Call Steve Allen +01(925)798-BEVL (2385)

If you need to look at parts breakdowns, try the http://www.motorcyclecarbs.com site and go into the Dellorto section. They have breakdowns by carb model.
I live at sea level here in Maine, and most of the riding here is on the coastal plain, not much altitude variation. The guy at BevelHeaven probably has a tuning section, or can refer you to one.
 
Gary,
Thank you for the help, and the contact info/links. I'll give them a call.

Good Riding!

Jim
 
I did a lot of re-jetting of two '94 350s two years ago. the owners swear by them. I even spoke to one of them yesterday! if I can get the jetting numbers off him I will....

regards

Taffy
 
just had a word with the fella about the work we did.

I went to a smaller Pj than the book so if it recommends a 50 i think we went to a 45. but the interesting stuff was that we went to the largest atomiser - a DR274 and the largest MJ in a 200-202. still it wasn't rich enough for him so the next thing we did was to stick a piece of card under the filter and pop a lot of holes in it until the bike ran sweet.

he reckons it's a beauty now....

regards

Taffy
 
That's for sure going to give me something to think about. I'm headed for the mountains this morning for a fine day of pulling arrows with my grandson. When I get back, maybe I'll have time to get some more reading done on the links provided. (I have a tab open in Firefox for each of them.)

Thanks again, Taffy!

Jim



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