No comp

[OKCterror]

Put on new coolhead and other goodies then ran it out at the local spot last weekend. No i can turn the engine over but i have 0 comp. Kick starter is super soft and i cant get the engine started. Should i rip apart the head assembly or what. What should i look for and what do you guys think it could be.-Dan

[shee4speed]

did it have compression after the head was put on? Your gonna definately need to pull the head and see whats going on.

[dajogejr]

As said, start by taking the head off. You could get lucky, pinched or smoked Orings.

Could have a melted piston....

[firebanshee]

Put on new coolhead and other goodies then ran it out at the local spot last weekend. No i can turn the engine over but i have 0 comp. Kick starter is super soft and i cant get the engine started. Should i rip apart the head assembly or what. What should i look for and what do you guys think it could be.-Dan

 

You was wondering in your thread called CRAP if you should run race gas,i think at 19cc domes and +4 or +5 timing if you didn't switch to race gas or at least mix 93 octane and race fuel 50/50 that could be a big part of your problem.You could have burned a hole in your piston from detonation.At sea level i think you need to drop to 21cc domes for 93 octane , just my thoughts.

[OKCterror]

well the kickstarter was soft after i put the head on so i dont think its a big problem. COuld orings bed bad

[jbooker82]

If the combustion chamber o ring was bad I would think that the leaking compression would be going in to the cooling system. That would cause antifreeze to puke out of the radiator.

 

josh

[fastrthnu]

You was wondering in your thread called CRAP if you should run race gas,i think at 19cc domes and +4 or +5 timing if you didn't switch to race gas or at least mix 93 octane and race fuel 50/50 that could be a big part of your problem.You could have burned a hole in your piston from detonation.At sea level i think you need to drop to 21cc domes for 93 octane , just my thoughts.

 

^^^yea^^^

 

an o ring prob fell out of the groove when ya put it together. or is it possible you put it together wrong, or missed an oring on install completely? do a comp test.

[OKCterror]

did the check and it woulndt go up at all, must have a leak. tearing down time.

[ZillaRider02]

did the check and it woulndt go up at all, must have a leak. tearing down time.

 

Wanna sell it?

 

Is this the Red/White '90 or so model that was on Craigslist.....

[OKCterror]

yeah it was, you offering?

[ZillaRider02]

yeah it was, you offering?

 

I'm guessing with no compression, it wont run right now.....You were asking $2500......What's it take to buy it right now?

[OKCterror]

that was also before i put the 900 in parts on it. 2200 delivered. with all the plastics and wheels and spare parts too.

[dajogejr]

2200 for a bike that doesn't run and has no compression????

 

[spurdy]

I don't think I would be banking on a bad o-ring. I used to run a 17cc dome and ran VP Red due to the compression. When I was running pump gas I ran a 21cc dome. I think anything less then a 21cc dome would require at least a mix considering where you ride unless your running a higher exhaust port. I think it could likely be a hole in a piston based on the information posted.

 

SP

[ZillaRider02]

I don't think I would be banking on a bad o-ring. I used to run a 17cc dome and ran VP Red due to the compression. When I was running pump gas I ran a 21cc dome. I think anything less then a 21cc dome would require at least a mix considering where you ride unless your running a higher exhaust port. I think it could likely be a hole in a piston based on the information posted.

 

SP

 

I'm thinking he burned a piston......Probably detonation. We'll see.