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Message started by azjay on 09/19/06 at 07:25:59

Title: would not start
Post by azjay on 09/19/06 at 07:25:59

last friday morning, debby and i went to go for a ride, and her suzuki would not start. we went for a ride 2 up on my HD instead, she wasn't real happy not riding her own :( trouble shooting revealed: cylinder full of raw fuel, old sparkplug misfiring to the side not center to electrode (sorta fouled?) ??? cycled starter with plug out, blew raw fuel out of engine, put new plug in, killed battery trying to start bike, move bike from shop to garage to charge battery. start bike, running PIG FAT! wouldn't clear up, too dark to continue >:( sunday a.m. take carb apart, replace 155 main with 152.5, clean needle and seat with aerosol carb cleaner and compressed air, reassembled and runs fine. i'm sure a piece of grit in the seat was culprit, probably ought to put an in-line fuel filter on it :-[ the jet change is an attempt to pick up a little fuel mileage, with cooler weather coming, i dont think i need to be quite so fat, as i run it for summer heat compensation.

Title: Re: would not start
Post by thumperclone on 09/19/06 at 17:31:33

couple of bucks for an in line filter= cheap p.m. get the clear type ...

Title: Re: would not start
Post by azjay on 09/21/06 at 08:40:26

and the saga continued >:( debby went to ride to school yesterday, she struggled with the bike to get it started. unusual; because it normally starts right away, no choke required around here, ever. ??? after hearing the bike crank too long, i went out to investigate, i got it started for her, but it required a little throttle input while cranking, (not normal). she went up the road about a mile and it stalled out on her, and she pushed it home, just a bit frustrated with her bike :( AND her mechanic. :-[ so i spent most of yesterday getting in to the suzi. here is what i found;
last friday when the the engine flooded, the crankcase oil was severly deluted by gasoline, changed that.
the air filter box had a standing pool of gas in the bottom, sponged it out with shop rags.
air filter was wet from gas splashing up into it, wouldn't flow air when wet, replaced it.
the new spark plug was sooty black, cleaned it with aerosol carb cleaner.
both intake valves and one exhaust valve were tight, adjusted them. i believe this to be the primary problem, as the engine would fire cold, but once warm wouldn't run. as the valve train warmed and the metals expanded, whatever clearance was there would disappear, holding valves open, lacking compression wouldn't fire fuel effectively, as the sooty plug would indicate, and the fuel being blown back into the air box.
added in line fuel filter. having my confidence shaken by the multiple problems, i took the bike for a ride, 30+ miles later it was still running like it is supposed to.

a few weeks/months ago, on this forum, we discussed the flooding potential in conjunction with the petthingy RES/ON/PRI position. i stated "i've never switched one OFF on any bike, and never had a problem" :-X open mouth, insert petthingy :-/ our manual converted petthingy can be switched to RES/ON/OFF conditions, i think we'll practice turning the fuel OFF, at least until our confidence has returned.

Title: Re: would not start
Post by georgekathe on 09/21/06 at 20:52:27

I would always advise turning the gas off when leaving a bike - as drummed into me by my Dad.

I once bought a Triumph Bonneville with a scr#@ed up engine due to the seller leaving the gas on, a leaky float then enabling it to fill the crankcase, resulting in drastically diluted oil & a wrecked top to bottom engine next time it was ran.

Bought bike cheap & spent all saving on buying parts to do engine up resulting in having a bike with a guaranteed new recon engine!

Could have missed it & got a lemon - as you could turn your bike into unless you leave the petthingy in the right position.

Title: Re: would not start
Post by Max_Morley on 09/21/06 at 21:08:05

On the stock airbox on my 96 there is a duckbill valve to drain it rather than swamping all the fluid out. May make it easier for the next person who has a stuck float and is on prime with the stock fuel control valve. Max

Title: Re: would not start
Post by Savage_Rob on 09/21/06 at 21:39:02

There's a drain hose on the bottom of mine. The plug was missing when I got her but I put a bolt in the end and used a hose clamp to hold it in place.