2006 Suzuki LTZ400 - Hard Start~Cranks But Won't Run

[AJsLTZ400]

I have a 2006 Suzuki ltz400. i bought it off some kid upstate and it ran when i tested it at his house. i brought it back to Long Island then it wouldnt start. it doesnt electric start to be more specific. Itll start if i pop the clutch in first gear but it doesnt idle, it dies. only does this when the motor is cold, when the motor is warmed up, itll idle. so i took it apart the i found that it had a blown headgasket. i replaced that and now it still doesnt start. i checked the timimg and its TDC on the bottom and top. now it cranks very strong and the compression is strong but it still wont turn over. its popped a couple times but it doesnt run. i cant seem to figure it out, i need help please.:mad:

[oxidized_black]

is the spark strong? have you tried a new plug? don't replace with the plug that's in it, it might be wrong. make sure it is right one for the bike. ngk has a good chart for atv's ...

[AJsLTZ400]

is the spark strong? have you tried a new plug? don't replace with the plug that's in it, it might be wrong. make sure it is right one for the bike. ngk has a good chart for atv's ...

yeah i got the manufactor recommanded spark plug. it does have spark.

[oxidized_black]

do you think it's a fuel problem? motor needs fuel, air and spark ... if it's getting good fuel supply, the carb might be somewhat dirty. seafoam is a good fuel additive and it'll save you tearing the carb apart ...

[marioweldinginc]

I dont like to use it but does it run on starting fluid? If it does then its fuel. If not then its spark or mechanical

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[AJsLTZ400]

do you think it's a fuel problem? motor needs fuel, air and spark ... if it's getting good fuel supply, the carb might be somewhat dirty. seafoam is a good fuel additive and it'll save you tearing the carb apart ...

it seems to be getting fuel, air and spark. the carb was also cleaned out. rejetted and carb cleaner.

[marioweldinginc]

What are the compression #s... If at a total loss and willing to have it repaired bring it to Diggin Racing in Bohemia. Chris did excellent work to my motor. Highly recommended

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[oxidized_black]

only other thing i can think of is timing not quite right ...

[marioweldinginc]

Agreed..... When you checked timing did you verify the cam marks or just the crank? Also a real

biggie is did you adjust your valves. Unadjusted valves make for a hard start.

[quadnut20]

Have U checked ur valves ?? If there to tight it wont start but will pull start !! I learned that the hard way !!

[AJsLTZ400]

Hey guys thanks for all the help, it was the valves. The intake valve lash was at 0. I didn't realize how important the adjustment was the valves. I'll give you guys an update when it fix it. I'm waiting on parts now:wink:

[AJsLTZ400]

My intake valve was really tight. 0 valve lash clearance. I think that's the problem, I'm waiting on the DRZe kit and Ferrera valves then I will replace the old parts. Thanks for the help guys ill give you an update soon

[marioweldinginc]

Excellent news!! Fix it up and get out there and ride!!

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