Suzuki Quadracer HQ

LT250R Quadracer => LT250R - Engine => Topic started by: Gage garman on February 23, 2015, 07:00:44 pm

Title: Re: Blown up top end.
Post by: Gage garman on February 24, 2015, 01:53:26 pm

He let it warm up for about 5 minutes

Title: Re: Blown up top end.
Post by: Kreidy818 on February 24, 2015, 01:30:52 pm

if he did not let it warm up before he rode, it could have cold seized

Title: Re: Blown up top end.
Post by: Nekrofilliak on February 24, 2015, 01:13:04 pm

happy birthday :-)

Title: Re: Blown up top end.
Post by: Gage garman on February 24, 2015, 01:11:47 pm

He had 90psi

Title: Re: Blown up top end.
Post by: Nekrofilliak on February 24, 2015, 01:05:16 pm

check the compression Wide open throttle , get a second reading with some drip of oïl in the cylinder spark plug hole. you should have minimum 140 psi .

Title: Re: Blown up top end.
Post by: ZillaFreak on February 24, 2015, 01:01:15 pm

could have blown when trying to start it. Like broke a ring or something.

Title: Re: Blown up top end.
Post by: Gage garman on February 24, 2015, 11:34:06 am

he must of had it running really lean that is why it blew up

Title: Re: Blown up top end.
Post by: Q2W on February 24, 2015, 10:38:20 am

It wouldn't have blown up while sitting.   

Your bike can feel and run like a beast when lean.  Unfortunately it will often nuke your top end at the same time. 

Best thing to do is inspect the top for wear and air leaks.

2 strokes are cheap and easy to rebuild.

Title: Blown up top end.
Post by: Gage garman on February 23, 2015, 07:00:44 pm

My uncle has a 92 lt250 and last time he rode it it ran perfect and he went to start it today and I won't start. He has low compression I think it was 90. How could it blow up when it's sitting there.