2002 Summit 700 - Snowmobile Forum: Your #1 Snowmobile Forum

neilnn · 12-30-2012, 08:58 PM

Good day ladies and gents I have a 2002 summit 700 which was running great until today. I took it out for a quick ride and shortly after it warmed up it started bogging out in low to mid range throttle??????? slow pretty good and all out seems to work great. Can someone please tell me whats wrong with my machine. It will idle all day starts easy seems to run great accept for this. Seems to be around 4-5500 rpm range.

neilnn · 12-31-2012, 07:01 PM

Well that seems odd I am the only one to run into these symptoms with a skidoo engine. Forums don't seem to work to well these days everybody reads and nobody replies.

**RJ Gleason** · 01-01-2013, 05:25 AM

Have you cleaned the RAVE?

**smallengineguy** · 01-01-2013, 07:42 AM

There are 1000000 threads on this. Clean the carbs.

neilnn · 01-01-2013, 02:43 PM

Guess I should have stated I am new to sledding and very unfamiliar to the mechanics of the new ones my last sled was an ELAN 12 early 70,s. I will try carbs first. Not sure how to clean or even what the rave is. I looked at lots of threads pretty much all of them still open with no resolution this is why I posed the question again. Even if you run premium fuel they still gum up and get dirty ah?

**RJ Gleason** · 01-01-2013, 05:04 PM

Yep, and some oils are better at helping them stay clean longer too.

**smallengineguy** · 01-01-2013, 05:59 PM

There is a carb cleaning and RAVE cleaning tutorial in the how-to's section of this forum. Very easy to do. Just take your time. Spray carb cleaner and compressed air are a must though!

neilnn · 01-01-2013, 06:10 PM

Thanks for the advice guys I will try those ideas and I will report back as to what it actually was in the end.

neilnn · 01-03-2013, 09:38 PM

So did a bunch of stuff like cleaned carb ect ran out of things to check so I had a dealer check it out and as I figured they came back with inconclusive but thinking its the DPM? Great fn 700 part. they say now its bypassing the DPM any body see a issue with this? They said it better but not right just the answer you want from a dealer. I am planning on taking it out this weekend to see what they say is better. I am so frustrated. One thing I noticed before it started acting up is temp was less than half and after i noticed the issue temp does not register a temp at all which is weird because it always did. Does this ring a bell with anyone as being a part of the issue. What is the consequences of bypassing the DPM and do I need it at all. Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!

**RJ Gleason** · 01-04-2013, 06:00 AM

Maybe the temp sensor has failed and that is causing a default rich condition.