Coolster 3150DX2 "jerking" and loose throttle? - Page 2

**JerryHawk250** · 03-02-2017, 09:27 AM

Quote:

Originally Posted by Ak

Oops, forgot the videos.

https://vimeo.com/206328744

https://vimeo.com/206328457

It could be a couple of things. Vacuum leak, Stuck carburetor slide (I had this happen and did the same thing), or trash in the jet. The carburetor is a pain to get to. Does it run better after it warms up? If it does then you may be having issues with the enrichment circuit (auto choke)

Azhule · 03-02-2017, 09:42 AM

Quote:

Originally Posted by JerryHawk250

I would get kicked off the forum if I posted those pictures. lol

That's what the "Private Message" feature is for

Soooo....

"Pics or it never happened"

Sorry I'm of no help on fixing your ride... I'm just stopping by to be a goof while my stomach hurts and feels funny (having my gallbladder/food intolerance problems

)

Swampy · 03-02-2017, 10:46 AM

Sorry to hear your having all these issues Ak. Is the carburetor a recent development and does it get better after it's warmed up?

As far as getting it in gear, the linkage you will need to adjust I have circled in green. This linkage pushes/pulls the arm circled in blue up or down to get it into gear. I "think" you will need to adjust so it is longer to have it engage fully into forward. You don't want adjust it too far as then you wont be able to get it into reverse. It's a relatively simple adjustment.

Pardon the picture quality as I am technically challenged.

07PSDCREW · 03-12-2017, 11:55 AM

The linkage is probably perfectly adjusted. The problem is the two 8mm screws that hold the arm/lever to the trans, and the two bolts and locknuts that hold the linkage on. This exact problem happened to me, working fine one day, then slamming gears. Use red loctite on the two screws AND the two bolts and nuts holding the linkage and actuator arm on. The shifter should have a "notch" feel as it goes into fwd and rev.... not just drop right into gear.

As far as the running issue, I had the same problem when ambient temp was low. These units are super lean so as to be sold in California. I drilled the little brass cap for the enrichment valve and adjusted accordingly. It dosent do that anymore.

03-12-2017, 11:55 AM	#19
07PSDCREW Join Date: Jan 2017 Location: Ashby, Ma Posts: 34	The linkage is probably perfectly adjusted. The problem is the two 8mm screws that hold the arm/lever to the trans, and the two bolts and locknuts that hold the linkage on. This exact problem happened to me, working fine one day, then slamming gears. Use red loctite on the two screws AND the two bolts and nuts holding the linkage and actuator arm on. The shifter should have a "notch" feel as it goes into fwd and rev.... not just drop right into gear. As far as the running issue, I had the same problem when ambient temp was low. These units are super lean so as to be sold in California. I drilled the little brass cap for the enrichment valve and adjusted accordingly. It dosent do that anymore.
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