recently i purchased a knew k/n filter and knew spark plug 4 my sons lt80.the first week the quad was fine,much better accelaration,much better at top-end,took it out this week and its not as quick top-end and not as quick of the mark.also it dosent seem to tick over aswell as it did,can anyone suggest anythink,please

 

did you rejet the carb when changed the filter?pull the spark plug out and see what color the tip of it is.if it is a white chalky color then you need to put a bigger main jet in the carb and you might want to change the plug again after you do this.

 

I'd start with a carb cleaning. I think youl find that's the problem.
FYI: the LT80's are jetted way fat. Adding a K&N will not require a jet change.
You should run a outerwear with any K&N style filter.

 

thanks but i have no idea what outerwear means lol

 

It's a fine mesh thing that pre-filters the air.
Anyplace that sells a filter can get you a outerwear.

 

Hi,

When it ticks over difficult, have you been thinking on checking your reed valves?
Mine where cracked! --> hard cranking, bad running.

Just a thought

 

cheers

 

thank you i will try that.

 

I have a 94 Lt 80 the engine runs great but the transmission is not letting it run but about 10MPH while the engine runs wide open. The Machine will pull great go up almost any hill you can aim it at it just wont run very fast have you ever seen this before. Thanks for any info you can provide

 

I had the same thing on my oldest LT, change the belt and the rollers in the hub on the crankshaft, that should give it the power it had before.