What is engine temp - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
 
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post #1 of 3 (permalink) Old Yesterday, 09:45 PM Thread Starter
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What is engine temp

2000 vstar 1100 classic. What should engine temp be I used a laser temp gun a few inches from head on exhaust pipe and was getting between 230/250 within a few minutes after starting. Idling in garage at 70f ambient temp at one moment it hit 320 until I got idle down to 960rpm for some reason it hunts for a few minutes after starting then settles down after it warms up. Maybe running lean? Or a vacuum leak? It does backfire on decel. Stock except cobra slip-ons. Had carbs gone through last year at dealership. Carbs out of sync? Pms not adjusted correctly?
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post #2 of 3 (permalink) Old Today, 12:36 AM
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210 - 230 degrees is the average operating Temp, as stated on the wiki page. If your bike is just sitting there idling, it's going to get hotter compared to when you're riding it.

2003 Vstar 1100 Custom

The sun's shining, the birds are chirping; it's a good day.

Last edited by Shawn855; Today at 12:39 AM.
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post #3 of 3 (permalink) Old Today, 07:29 AM
KCW
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the temp depends on where you point the optical thermometer and how fast the wind is blowing over your bike

the engine is not really designed to sit and idle in a garage - idling has the most delicate balance on the fuel/air ratio, because its using so little of both.

Is the bike running ok while riding? if your crank it WFO in 4th gear does it growl and take off like bats from hell?

popping on deceleration is normal if its slightly lean, if you have aftermarket exhaust and the jets and PMscrews were not changed and adjusted it will be just a bit lean

if you are putting premium gas in the bike (it does not need it, uses regular) it will be even more lean

If you are running regular 10% ethanol, you could try to find a station that has regular octane ethanol free gas, that will run a bit richer, and see how the bike behaves. There are some stations around that sell it, esp for older cars, lawn mowers, and other small gas engine that dont run well on E10 fuel.

when you start the bike pull the choke all the way out, dont give it any throttle, and as soon as it starts push the choke halfway in, check your signals and lights, and ride off. The oil pump will push more oil up thru the engine if you ride it, better than letting it sit there and idle.

About 1/2 a mile down the road push the choke in all the way.

for the rest of the day you wont need the choke again unless the bike has sat cold for several hours.

If you think there is a vacuum leak, you can use an unlit propane torch to gas the area where the leak might be, or carb cleaner - if you hit a leak area the idle will speed up.

Last edited by KCW; Today at 07:32 AM.
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