2004 250 HPDI

[TX Angler1955]

Looking at putting in new spark-plug can some one tell me the gap?

[driftwood]

My 04 300 HPDI is 1.5-1.6 mm.

[spider1]

Should be pre gapped.

[TX Angler1955]

Put the new ons in last night . The olds ones looked bad,so hope it helps.


THANKS

[TX Angler1955]

Went to the lake last night and the pulgs help I did get the RPM back , it will trun a 25 p t1 to 5600 on a 521 in 90. air temp and 86. water temp. I think I still have fuel trouble it will cut out on a long run it you stay in it hard. like it is tring to run out of fuel.

[spider1]

If you are only turning 5600 I would drop down to a 24 pitch prop that should get you up to 5800 and improve your hole shot.