Help a dad out, son's Blaster will not rev!!

[Blazer1]

My son and his friend decided to strip his Blaster down to the frame and paint it, now it will not rev!

It starts great and will idle all day long but no matter what you do it will not rev above about 1200rpm, when you hit the throttle it goes "rat-tat-tat-tat" very slowly and really smokes. I pulled the needle out of the carb to make sure it was not stuck and cleaned the carb and jet but the more I work on it the more I think it is an electrical problem.

His Blaster has lots of mods, Airasal 200cc national kit w/ MX port, 30mm Kehin carb, head shaved to 160psi, LRD pipe, along with many others. It does not have the oil tank anymore either.

Any ideas?

 

[blasterdude14]

Sounds like a crank seal is it pouring out white smoke?
If it is that means your burning the transmission oil which results from a blown crank seal

 

[brandoz28]

did it run fine before you tore it apart? check your grounds, make sure that they're all making contact with bare frame

 

[Blazer1]

did it run fine before you tore it apart? check your grounds, make sure that they're all making contact with bare frame

Yea, it ran like a raped ape!

 

[brandoz28]

ok check the grounds and what color is the smoke? is it white? i'm also thinking electrical, also make sure that everything is plugged in correctly. most likely something simple

 

[fioz600r]

Id start with checking all the wires and make sure they are hooked up right. Could be bad reeds also.

 

[YZ Otis]

Simple stuff first. Is plug wire cap tight down on the plug. What does the plug look like? Wet? Fouled?

 

[Blazer1]

The smoke is normal color, just like a very loaded up two stroke looks. I have not pulled the plug but I am sure it is soaked as there is fuel leaking from around the exhaust at the jug.

This 1200rpm I am talking about is setting on the stand in neutral, it will not even pull its self, no matter the throttle postition it revs to the same rpm.

 

[BigBlasterd]

oh man u got a mess on your hands is it like pouring out?

 

[brandoz28]

maybe just change the plug and see what happens.

 

[Blazer1]

It is not pooring out but very rich! I am not sure if it is rich because something is cutting the spark or if it really is getting to much fuel?

Is there something on the Blasters that will act as a rev limiter, some type of safety?

 

[DReeds]

umm..is the parking brake on??? check that.

 

[brandoz28]

Reeds you may be onto something...all that crap is gone on mine so i don't even think about it

 

[Blazer1]

umm..is the parking brake on??? check that.

I think I bypassed the parking brake switch, will that limit the rpms? My son may have hooked it back up?

 

[blastermaster01]

Is the TORS still on it?

 

[brandoz28]

i'd say if he's running a 30mm its gone

 

[Blazer1]

DReeds is the man!!!!!!!!!!!

I had unplugged the parking brake swtich because it was bad and when my son put it back together after painting the frame he hooked the park brake switch back up.

It revs to the moon now.

Rep coming your way DReeds and thanks to everyone for helping!

 

[brandoz28]

good to hear man. Reeds you dah man!

 

[DReeds]

DReeds is the man!!!!!!!!!!!

I had unplugged the parking brake swtich because it was bad and when my son put it back together after painting the frame he hooked the park brake switch back up.

It revs to the moon now.

Rep coming your way DReeds and thanks to everyone for helping!

lol its one of the most overlooked simple things that slips the mind..lol happens to me a lot...glad i could help and you got it runnin perfect!!

 

[Blazer1]

I gave you rep DReeds but nothing changed?