Maintenance & Technical > KX500 Original
K5 starting questions
*King*Kong*K*X*:
I had a hard time getting my kx5 started when i first got it. I put mine in 1st and rock it back and forth for about 30 seconds, then put it back in neutral, make sure the choke is on, make sure it is at top dead center and then kick it like you mean it. sometimes mine will back fire a couple of times before it starts. im also 280 lbs so its a little easier to get it to crank. try standing on something or leaning the bike against something to help you get more leverage.
Polar-Bus:
--- Quote from: tcoop474 on November 06, 2011, 02:57:17 AM ---I'm having a pretty hard time getting my k5 to crank. It'll backfire everynow and then I got it to crank once so far. I'm 123lbs so not much ass behind the kicks but I get it to turn over a good bit just won't fire. I checked the plug it looks okay but its a bp7es ain't it supposed to be a br8eix?
--- End quote ---
If the bike is backfiring it's trying to do something. Try a fresh plug (I prefer B8EG's) add some fresh fuel. And try again. If you keep hearing a backfire you possibly have a sheared flywheel key. The other issue is my famous "do a compression test" speech. 75% of the "my bike wont start or bogs" issues stem from a blown or weak top end.
I lean my 500 over hard to the left until i see a bit of fuel spill out the carb overflow, then I kick 2 or 3 times and it lites off every time.... starts one or two kicks hot as well. I have approx 170 psi for compression (I have Kawis optional thin head gasket). Most stock 500's put out about 155 psi in good condition.
tcoop474:
Thanks guys. Someone mentioned jetting the old plug I pulled out was a paper bag brown color. Some one mentioned spark plug b8eg did you mean br8eg? If so I put one in yesterday with no luck. As far as the woodruff key this was one of my first thoughts but haven't checked it yet. And no Friday it didn't run poorly it ran great as usual. The backfiring is while trying to crank it not while running thanks
serafin:
Let me add my 2 cents to the discussion. It sounds like once the bike starts it runs well. I would check the Carb Float Height. A Float Height that is too low would cause hard starting and an occasional backfire as the vacuum signal produced during the start cycle (kicking the bike over) is different than when the bike is running. It takes a good boot to get things spinning to create the required vacuum to pull the fuel up from the fuel bowl into the various Carb passages. Keihin PWK Carb Float Height 16mm. Again my 2 cents and something I would check.
S
tcoop474:
I think its my Carb to cylinder intake boot. Just found a crack in it
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version