No start, replaced many parts, what next?

[walt]

In the pic the crud looks like rust. Either seal the inside of the tank or clean with muriatic acid. A fuel filter would help too. Otherwise you will go thru all this again.

[Nessism]

In the pic the crud looks like rust. Either seal the inside of the tank or clean with muriatic acid. A fuel filter would help too. Otherwise you will go thru all this again.

Good point! Yes, looks like rust.

Phosphoric acid is better than muriatic though and is a common ingredient in rust removal chemicals. Go to Por-15.com and check out the products there. Good stuff.

[Scottydog]

SuperCell, what timing.
Recent new GS550EN owner.
Compression seems good with "thumb" test.
Points were way out, so adjusted, and now sparking.
Adjusted plug gaps.
Bike was laid up for 4 years, so checked inside tank.
PO had painted tank, but not sealed off inside -- some paint flaking inside tank!
Got good fuel and Redex into tank and jump leads to a running car.
The GS eventually ran under her own steam, after about 5 minutes cranking with plenty of starter motor rests.
Not firing properly, so felt each exhaust header to see if there was heat. One still cold.
Took plugs back out and heated with blowtorch until ceramic started getting "a bit warm!", and replaced.
Took air filter pods off and squirted Redex/fuel in whilst running.
Seems like I have a stuck float or some such too.
I'll be keeping an eye on your progress, no pressure!
\\/

[Steve]

Got good fuel and Redex into tank and jump leads to a running car.

I can tell you're new here. :shock:

By the way, welcome. 8-[


DO NOT, under ANY circumstances use a running car, truck, bus, motorcycle, etc. to jump-start your bike. Virtually all of them have alternator outputs greater than your regulator is capable of handling. The way our charging systems are designed, your bike's regulator will try to regulate ANY voltage it sees, including the vehicle donating the jump start. Since your regulator is not capable of handling that much current, there is a good chance it has been fried or toasted or merely cooked. When you do get your bike running again, do some careful checks to make sure your rectifier/regulator is working properly. Easiest way is to simply check the voltage at the battery terminals when the bike is idling and when running about 3,000 rpm. Idle might be anything above 12, faster speeds should be a minimum of 13.6 volts.


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