98 Sportsman idles great cutting out at full throttle

Reply Subscribe

Thread Tools

Search this Thread

07-08-2020, 05:30 PM

catronjl

Weekend Warrior

Thread Starter

Join Date: Jan 2014

Posts: 16

Likes: 0

Received 0 Likes on 0 Posts

98 Sportsman idles great cutting out at full throttle

I have seen pages of posts on this problem but think mine is strange. If I cover the inlet tube to air box revs up and runs good but if not cuts out and backfires. Is this a fuel issue???

Reply Like

07-09-2020, 07:04 PM

Nomicron99

Range Rover

Join Date: May 2020

Location: North Idaho

Posts: 106

Likes: 3

Received 12 Likes on 12 Posts

Check the intake adapter between the carb and engine. You will probably find it torn.

Reply Like

10-16-2020, 11:31 AM

catronjl

Weekend Warrior

Thread Starter

Join Date: Jan 2014

Posts: 16

Likes: 0

Received 0 Likes on 0 Posts

I checked intake boot. No tears! Still can’t get it to open up unless I restrict the air! What am I missing????

Reply Like

10-16-2020, 02:40 PM

Nomicron99

Range Rover

Join Date: May 2020

Location: North Idaho

Posts: 106

Likes: 3

Received 12 Likes on 12 Posts

Sounds like you need to do a good carb clean and rebuild. Don't buy a cheap Chinese carb off ebay or you may end up with worse problems.

Reply Like

10-16-2020, 03:03 PM

catronjl

Weekend Warrior

Thread Starter

Join Date: Jan 2014

Posts: 16

Likes: 0

Received 0 Likes on 0 Posts

How do I tell if someone has went with a Chinese carb in the past??

Reply Like

10-30-2020, 05:48 PM

catronjl

Weekend Warrior

Thread Starter

Join Date: Jan 2014

Posts: 16

Likes: 0

Received 0 Likes on 0 Posts

Ordered a carb off eBay figured I’d try it! Put it on and this thing runs like a top!

Reply Like

03-14-2021, 07:53 AM

Glynnk1981

Weekend Warrior

Join Date: Mar 2021

Posts: 1

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by catronjl

I have seen pages of posts on this problem but think mine is strange. If I cover the inlet tube to air box revs up and runs good but if not cuts out and backfires. Is this a fuel issue???

it sounds like the common problem with these particular at a, & that is the cam going flat and exhaust rocker worn.

Reply Like