Fd620 99 conquest issues at 47hrs.

[sofob0909]

And now I need to pull the motor... Was changing oil with vacuum pump in dip stick tube and part of the plastic tube broke off in the motor. I just invented some colorful words.

[sofob0909]

Well now i have different symptoms...
it is backfirng like crazy when I operate the throttle
I put some oil in the cylinders to help build some compression.

My thought is maybe it jumped out of timing? Would explain lower compression whichbis same in both cylinders and backfiring. How can I check this in the machine?

[ARGOJIM]

If your oil is high and smells like gas I'd change it.
With the machine sitting outside you want to try some wd40 in the key switch, disconnect the battery and cycle the switch a whole bunch with the wd40 sprayed directly in key slot, it could be corroded contacts in switch.

[sofob0909]

Hey guys. I am having some trouble with my conquest. Bought this a year ago and when I got it I replaced the entire fuel system and lines. Rebuild the carb.

Thing ran great but the tires sucked. I just bought 8 Kendra bearclaws. And today I went to drive the machine into the shop to pull the wheels and swap.

The agro wouldn't start... Just spin and spin. No popping at all.
Had been sitting on rock pile for 3 weeks. About 30 degree slope nose up.
First tried some fuel down the throttle... Nothing. Then drained bowl and pumped up fresh gas. Nothing. Pulled plugs and they were wet. Cranked it over with plugs out and let it sit. Reinstall plugs and tried with no avail.

So now I break out the spark inline tester. But plugs had spark.

So pushed machine inside and put on lift.

Compression tested... 120 reached pretty fast. If I bump the starter I can get it up to 155ish... Wtf? Manual says 170 min.

Machine ran great when parked. I have been trying to get it to run Bette with pilot screw but it was perfect when I parked it.

Even tried tweaking it in and out to no avail.

What could cause this loss of compression? I did notice dip stick was about 3/4". High( thinking fuel in oil). Which is common.

So. What are my options... Do I need to pull the motor out? Can I do anything else with it in the machine...