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Old 06-09-2003 | 04:50 AM
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visioneer_one
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From: St. Thomas, VIRGIN ISLANDS (USA)
Default DP Ultimate 40 and YS 63 Cooling
I also had an overheating problem with my Ultimate .40 / YS .63 combination. My engine is mounted sideways, and the cowl was originally cut for the valve cover ONLY.

I widened the curved opening at the bottom-rear of the cowl by about 3/16".

It now runs strong, with no overheating tendencies at all.

I can post a picture if necessary.
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