Super Jet Need help with hesitation that just appeared

[lostcreek21]

My 96 has been running great this past year and up to this last weekend. I was riding friday and halfway through the ride I noticed the ski had developed a hesitation. The hesitation happens if I pull it wide open from 1/8 throttle or so. What's weird is I dont feel like it happens everytime I pull full throttle. Plugs look good and brown so I feel like tuning is still good.

Should I be looking at carb rebuild or what else........?

 

[tor*p*do]

fuel filter or trash/debris in carb would be my guess

 

[JT_Freeride]

This happened to me and it was my spark plugs. What plugs are you using. Cause I used br8hs-10 which is a wide gap plug and cause my motor to hesitate and even misfire.

 

[TheBuzzard]

if it only does it when you crack it wide open from low rpm, sounds like lean bog. turn the low screws open 1/2 turn each and try it again. if that wasnt it, turn the screws back.

 

[Matt_E]

This happened to me and it was my spark plugs. What plugs are you using. Cause I used br8hs-10 which is a wide gap plug and cause my motor to hesitate and even misfire.

I doubt his plugs changed into wide gap plugs mid-ride without his knowledge.

 

[lostcreek21]

I'm running the BR8HS plugs and I just pulled them after yesterday's ride and they look very rich. I pulled them before yesterday's ride and they looked brown. Anyway it could have richened up on me without me adjusting anything?

 

[lostcreek21]

Looks too rich to me......

 

[JT_Freeride]

I doubt his plugs changed into wide gap plugs mid-ride without his knowledge.

I didn't read the "halfway through the ride" my fault

 

[lostcreek21]

I threw some new plugs in today and it ran great with no hesitation until I overheated the motor and the sensor shut me down. I located the problem (cooling line became disconnected) and fixed it and rode again and the hesitation was back again. Plugs still look new

 

[user_error]

if it ran well last year and has sat for a while i would highly recommend carb rebuilds. make sure you replace the small dime sized clear check valves in the carbs with new ones from the kit. i had a similar problem and 100% rebuilt carbs took the problem away. cleaning them did not sure the problem