The gasket from a 93 200/225 will work. The 3 cylinder 70's are the same too I believe. more
See full version: 225 Johnson thermostat question
The gasket from a 93 200/225 will work. The 3 cylinder 70's are the same too I believe. more
Re: 225 Johnson thermostat question
On a 1986 to 92 carb'd 90* V6 looper you can use the t-stat cap, gasket and spring from a 93 & newer 200/225. Remove the diaphram from the vernatherm and reinstall with the new cap, gasket & spring. Be sure to get the cap and spring from the same year. There are a couple different caps and they'll all work, just consider the cap and spring a set. [links]
Re: 225 Johnson thermostat question more
The boat thermostat is an often underappreciated component of every craft. This mechanism regulates engine temperature and ensures optimal performance. Boat engines run at max performance which can generate a lot of heat. Should the engine begin to overheat, thermostats provide the operator the first line of defense in preventing an expensive repair or possible replacement. In addition, the thermostat other assignment is to control emission levels so your boat stays regulation-compliant. more
Wholesale Marine carries dependable Johnson outboard thermostats, as well as all the replacement parts you need to keep your vessel running at the optimal performance: diaphragm gaskets, rubber valves, grommets, vernatherms, and all-inclusive kits can all be located online using our parts finder tool. All of our replacement Johnson outboard thermostats meet or exceed OEM specifications and are, of course, backed by a price match guarantee.
At Wholesale Marine, we strive to be your number one trusted source for boat parts and supplies, so we take customer satisfaction seriously. Our customer service representatives are boat enthusiasts themselves and are ready to offer guidance on Johnson outboard thermostats. We are here Monday through Friday, from 9:00 AM until 6:00 PM, EST at (877) 388-2628 to assist. Through our Captain’s Loyalty Rewards program, free shipping on orders over $99, and same-day shipping, we are always looking to provide customers with an optimal shopping experience. [links]
Re: Normal running temperature of outboard engines?
Re: Normal running temperature of outboard engines? here
ATF, I'm not really familiar with the optimax's. But that sounds good to me.. Again this is water temp readings. 89F does seem low though. <br /><br />Where's Trumanlake when you need him.
Re: Normal running temperature of outboard engines? [links]
Way lower! The larger Merc's have 143°F thermostats. Over 170°F is overheating. If it's too hot to hold your fingers on the head for almost all water cooled outboards, it's too hot. here
Re: Normal running temperature of outboard engines? more
Lenny: That's what a new thermostat looks like, and there's an old one. [links]
Chris: The easiest way is to refer back to the service manual, and if you don't have the service manual you can go on the internet and Google, and find it there.
Chris Breeden, Service Manager/Yamaha Master Tech: Well, one of the easiest signs is you get a high idle and oil dilution. The oil dilution is going to be fuel finding its way past the rings and getting into the oil. more
We ask the experts at Norfolk Marine how to change the thermostat on a Yamaha F-150 4-stroke outboard engine.
Lenny: Well, can you show us how to change the thermostat? more