hole shot bog problem

[sprinklerman]

Lockout is great for a duner. Allows you to run a much lighter clutch spring.

[bluebanshee98]

I think your crazy to not have a lockout, I have a decent amount of experience with 33s they like bigger jets than the more common 35s . My friends duneport stock cylinder chopped perfect at 172 main dek needle 2nd clip

Did your friend have a leak down test done on that motor? Just curious. That's some big jets especially for that motor but possibly those 33mm need bigger jets like you said

[jscharphorn]

I talked to shawn and he said he thought the plug chop with the 168 looked lean and he could not see a timing mark.

base gasket .20

squish he thought was 40 but could not find his notes at the time.

He did not like the idea of +6 timing

He is going to run the bike and try some things Sat.

[Surfrjag]

Cubs like timing I run them +6 on race gas all the time

[sleeper06]

I would get some deks, cels never heard of that needle. All bikes can benefit from a lock out if you ride hard u will have a tough time keeping plates from glazing over. I would look into those squish numbers and dome cut your missing 15-20 psi from where I normally see those engines with a 20cc dome . I personally like the compression numbers you have but I'm usually at 22-21 cc domes on a drag ported cub. Look into what base gasket he used it might be set up for a .012 and if he used a bigger one you would have loose squish and compression would suffer

[sleeper06]

.040 is tight on squish if you want that motor to live

[bluebanshee98]

I would get some deks, cels never heard of that needle

You really never heard of the CEL needles? A lot of people have had some good luck with them.

[jscharphorn]

needle is a  CG L , my daughter read it for me and it was worn, the other side was readable.

I will post what the results were once I find out.

[jscharphorn]

sleeper, are you saying it needs a .012 base gasket or are you saying it might be set up for a 12, Shawn did use a .020

Were do I get the DEK needles at and I am looking at a used lock out now.

I did try many different jets today from 162-175 and no luck

I am dropping the bike off tomorrow to shawn but have a feeling it will not be ready by Thursday for the drag test and tune at Michigan atv nationals next weekend.

[special06shee]

Sudco sells any needle you would need.

[sleeper06]

You really never heard of the CEL needles? A lot of people have had some good luck with them.

[sleeper06]

I use cel all the time , it was the OG needles I never heard of

[Coupelx]

I also prefer not to run a lockout. I do however run an 8 plate clutch.

[jscharphorn]

170 mains is still too lean, I do not have a 172 so I need to order them and I am going to order the DEK needles,

Will that change the jetting ?

[sprinklerman]

Wait a minute.

You're going to take the advise of strangers , who know nothing about how the motor is set up, over the guy who built it?

Ask Shawn what it needs.