87 yamaha enticer 340 boggy not crank seals!

seanmurphy26

New member
Joined
Oct 31, 2004
Messages
621
Location
milo maine
ok guys I've been working on this thing the past two weekends and have lost my patience.

Background-
Bought the sled for 100$ figured I could fix it. Chassis is in very good shape along with track. Looks like someone worked on it that had no clue, came with 2 engines and 2 carbs. could not get rid of bog. Cleaned carbs tried swapping engines, carbs, coils, stators, clutches, running it with no belt on it.

Gave up and bought a mikuni round slide vm 36mm carb
Split case replaced all seals, honed and re rung

Now it starts fine, both plugs read the same, (before pto side was always lean), mid throttle sucks! Sometimes I can get past it and wot is ok ish. Only with no belt on. When belt is on forget it. Rebuilt my primary and secondary and they seem to work fine with sled off the ground so that isn't the issue.

Timing? How do I know it's right?

Jetting I'm at 350 main and 45 pilot needle in the middle

I'm stumped guys
 



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